/*
  Human library
  homepage: <https://github.com/vladmandic/human>
  author: <https://github.com/vladmandic>'
  */

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Reusing existing backend factory.`),!1):(this.registryFactory[e]={factory:t,priority:n},!0)}async setBackend(e){if(this.registryFactory[e]==null)throw new Error(`Backend name '${e}' not found in registry`);if(this.backendName=e,this.registry[e]==null){this.backendInstance=null;let{success:t,asyncInit:n}=this.initializeBackend(e);if(!(n?await t:t))return!1}return this.backendInstance=this.registry[e],this.setupRegisteredKernels(),this.profiler=new tN(this.backendInstance),!0}setupRegisteredKernels(){Al(this.backendName).forEach(e=>{e.setupFunc!=null&&e.setupFunc(this.backendInstance)})}disposeRegisteredKernels(e){Al(e).forEach(t=>{t.disposeFunc!=null&&t.disposeFunc(this.registry[e])})}initializeBackend(e){let t=this.registryFactory[e];if(t==null)throw new Error(`Cannot initialize backend ${e}, no registration found.`);try{let n=t.factory();if(n&&!(n instanceof Eu)&&typeof n.then=="function"){let a=++this.pendingBackendInitId,r=n.then(s=>a<this.pendingBackendInitId?!1:(this.registry[e]=s,this.pendingBackendInit=null,!0)).catch(s=>(a<this.pendingBackendInitId||(this.pendingBackendInit=null,console.warn(`Initialization of backend ${e} failed`),console.warn(s.stack||s.message)),!1));return this.pendingBackendInit=r,{success:r,asyncInit:!0}}else return this.registry[e]=n,{success:!0,asyncInit:!1}}catch(n){return console.warn(`Initialization of backend ${e} failed`),console.warn(n.stack||n.message),{success:!1,asyncInit:!1}}}removeBackend(e){if(!(e in this.registryFactory))throw new Error(`${e} backend not found in registry`);this.backendName===e&&this.pendingBackendInit!=null&&this.pendingBackendInitId++,e in this.registry&&(this.disposeRegisteredKernels(e),this.registry[e].dispose(),delete this.registry[e]),delete this.registryFactory[e],this.backendName===e&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)}getSortedBackends(){if(Object.keys(this.registryFactory).length===0)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort((e,t)=>this.registryFactory[t].priority-this.registryFactory[e].priority)}initializeBackendsAndReturnBest(){let e=this.getSortedBackends();for(let t=0;t<e.length;t++){let n=e[t],{success:a,asyncInit:r}=this.initializeBackend(n);if(r||a)return{name:n,asyncInit:r}}throw new Error("Could not initialize any backends, all backend initializations failed.")}moveData(e,t){let n=this.state.tensorInfo.get(t),a=n.backend,r=this.readSync(t),s=a.refCount(t);a.disposeData(t,!0),n.backend=e,e.move(t,r,n.shape,n.dtype,s),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++}tidy(e,t){let n=null;if(t==null){if(typeof e!="function")throw new Error("Please provide a function to tidy()");t=e}else{if(typeof e!="string"&&!(e instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if(typeof t!="function")throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");n=e}let a;return this.scopedRun(()=>this.startScope(n),()=>this.endScope(a),()=>(a=t(),a instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),a))}scopedRun(e,t,n){e();try{let a=n();return t(),a}catch(a){throw t(),a}}nextTensorId(){return nd.nextTensorId++}nextVariableId(){return nd.nextVariableId++}clone(e){let t=P.runKernel(zs,{x:e}),n={x:e},a=s=>({x:()=>{let i="float32",o={x:s},u={dtype:i};return P.runKernel(ks,o,u)}}),r=[];return this.addTapeNode(this.state.activeScope.name,n,[t],a,r,{}),t}runKernel(e,t,n){if(Mc(e,this.backendName)==null)throw new Error(`Kernel '${e}' not registered for backend '${this.backendName}'`);return this.runKernelFunc({kernelName:e,inputs:t,attrs:n})}shouldCheckForMemLeaks(){return this.ENV.getBool("IS_TEST")}checkKernelForMemLeak(e,t,n){let a=this.backend.numDataIds(),r=0;n.forEach(o=>{r+=o.dtype==="complex64"?3:1});let s=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],i=a-t-r-s;if(i>0)throw new Error(`Backend '${this.backendName}' has an internal memory leak (${i} data ids) after running '${e}'`)}runKernelFunc(e){let t,n=[],a=this.isTapeOn(),r=this.state.numBytes,s=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);let i;this.backendName==null&&this.backend;let o,u=s1(e)?e.kernelName:this.state.activeScope!=null?this.state.activeScope.name:"";if(s1(e)){let{kernelName:h,inputs:m,attrs:f}=e;this.backendName==null&&this.backend;let A=Mc(h,this.backendName);D(A!=null,()=>`Cannot find registered kernel '${h}' for backend '${this.backendName}'`),i=()=>{let g=this.backend.numDataIds();o=A.kernelFunc({inputs:m,attrs:f,backend:this.backend});let y=Array.isArray(o)?o:[o];this.shouldCheckForMemLeaks()&&this.checkKernelForMemLeak(h,g,y);let x=y.map(v=>{if(v.rank!=null)return v;let{dataId:b,shape:w,dtype:N}=v;return this.makeTensorFromDataId(b,w,N)});if(a){let v=this.getTensorsForGradient(h,m,x);n=this.saveTensorsForBackwardMode(v)}return x}}else{let{forwardFunc:h}=e,m=f=>{!a||(n=f.map(A=>this.keep(this.clone(A))))};i=()=>{let f=this.backend.numDataIds();o=this.tidy(()=>h(this.backend,m));let A=Array.isArray(o)?o:[o];return this.shouldCheckForMemLeaks()&&this.checkKernelForMemLeak(u,f,A),A}}let{inputs:l,attrs:d}=e,p=s1(e)?null:e.backwardsFunc,c;return this.scopedRun(()=>this.state.kernelDepth++,()=>this.state.kernelDepth--,()=>{!this.ENV.getBool("DEBUG")&&!this.state.profiling?t=i():(c=this.profiler.profileKernel(u,l,()=>i()),this.ENV.getBool("DEBUG")&&this.profiler.logKernelProfile(c),t=c.outputs)}),a&&this.addTapeNode(u,l,t,p,n,d),this.state.profiling&&this.state.activeProfile.kernels.push({name:u,bytesAdded:this.state.numBytes-r,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-s,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(l).map(h=>l[h]!=null?l[h].shape:null),outputShapes:t.map(h=>h.shape),kernelTimeMs:c.timeMs,extraInfo:c.extraInfo}),Array.isArray(o)?t:t[0]}saveTensorsForBackwardMode(e){return e.map(t=>this.keep(this.clone(t)))}getTensorsForGradient(e,t,n){let a=Km(e);if(a!=null){let r=a.inputsToSave||[],s=a.outputsToSave||[],i;a.saveAllInputs?(D(Array.isArray(t),()=>"saveAllInputs is true, expected inputs to be an array."),i=Object.keys(t).map(u=>t[u])):i=r.map(u=>t[u]);let o=n.filter((u,l)=>s[l]);return i.concat(o)}return[]}makeTensor(e,t,n,a){if(e==null)throw new Error("Values passed to engine.makeTensor() are null");n=n||"float32",a=a||this.backend;let r=e;n==="string"&&$r(e[0])&&(r=e.map(o=>Yu(o)));let s=a.write(r,t,n),i=new Be(t,n,s,this.nextTensorId());if(this.trackTensor(i,a),n==="string"){let o=this.state.tensorInfo.get(s),u=ob(r);this.state.numBytes+=u-o.bytes,o.bytes=u}return i}makeTensorFromDataId(e,t,n,a){n=n||"float32";let r=new Be(t,n,e,this.nextTensorId());return this.trackTensor(r,a),r}makeVariable(e,t=!0,n,a){n=n||this.nextVariableId().toString(),a!=null&&a!==e.dtype&&(e=e.cast(a));let r=new td(e,t,n,this.nextTensorId());if(this.state.registeredVariables[r.name]!=null)throw new Error(`Variable with name ${r.name} was already registered`);return this.state.registeredVariables[r.name]=r,this.incRef(r,this.backend),r}trackTensor(e,t){this.state.numTensors++,e.dtype==="string"&&this.state.numStringTensors++;let n=0;e.dtype!=="complex64"&&e.dtype!=="string"&&(n=e.size*jm(e.dtype)),this.state.numBytes+=n,this.state.tensorInfo.has(e.dataId)||(this.state.numDataBuffers++,this.state.tensorInfo.set(e.dataId,{backend:t||this.backend,dtype:e.dtype,shape:e.shape,bytes:n})),e instanceof td||this.track(e)}incRef(e,t){this.trackTensor(e,t),this.backend.incRef(e.dataId)}removeDataId(e,t){this.state.tensorInfo.has(e)&&this.state.tensorInfo.get(e).backend===t&&(this.state.tensorInfo.delete(e),this.state.numDataBuffers--)}disposeTensor(e){if(!this.state.tensorInfo.has(e.dataId))return;let t=this.state.tensorInfo.get(e.dataId);if(this.state.numTensors--,e.dtype==="string"&&(this.state.numStringTensors--,this.state.numBytes-=t.bytes),e.dtype!=="complex64"&&e.dtype!=="string"){let n=e.size*jm(e.dtype);this.state.numBytes-=n}t.backend.disposeData(e.dataId)&&this.removeDataId(e.dataId,t.backend)}disposeVariables(){for(let e in this.state.registeredVariables){let t=this.state.registeredVariables[e];this.disposeVariable(t)}}disposeVariable(e){this.disposeTensor(e),this.state.registeredVariables[e.name]!=null&&delete this.state.registeredVariables[e.name]}memory(){let e=this.backend.memory();return e.numTensors=this.state.numTensors,e.numDataBuffers=this.state.numDataBuffers,e.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(e.unreliable=!0,e.reasons==null&&(e.reasons=[]),e.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),e}async profile(e){this.state.profiling=!0;let t=this.state.numBytes,n=this.state.numTensors;this.state.activeProfile.kernels=[],this.state.activeProfile.result=await e(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max(...this.state.activeProfile.kernels.map(a=>a.totalBytesSnapshot)),this.state.activeProfile.newBytes=this.state.numBytes-t,this.state.activeProfile.newTensors=this.state.numTensors-n;for(let a of this.state.activeProfile.kernels)a.kernelTimeMs=await a.kernelTimeMs,a.extraInfo=await a.extraInfo;return this.state.activeProfile}isTapeOn(){return this.state.gradientDepth>0&&this.state.kernelDepth===0}addTapeNode(e,t,n,a,r,s){let i={id:this.state.nextTapeNodeId++,kernelName:e,inputs:t,outputs:n,saved:r},o=Km(e);o!=null&&(a=o.gradFunc),a!=null&&(i.gradient=u=>(u=u.map((l,d)=>{if(l==null){let p=n[d],c=qp(p.size,p.dtype);return this.makeTensor(c,p.shape,p.dtype)}return l}),a(u.length>1?u:u[0],r,s))),this.state.activeTape.push(i)}keep(e){return e.kept=!0,e}startTape(){this.state.gradientDepth===0&&(this.state.activeTape=[]),this.state.gradientDepth++}endTape(){this.state.gradientDepth--}startScope(e){let t={track:[],name:"unnamed scope",id:this.state.nextScopeId++};e&&(t.name=e),this.state.scopeStack.push(t),this.state.activeScope=t}endScope(e){let t=r1(e),n=new Set(t.map(r=>r.id));for(let r=0;r<this.state.activeScope.track.length;r++){let s=this.state.activeScope.track[r];!s.kept&&!n.has(s.id)&&s.dispose()}let a=this.state.scopeStack.pop();this.state.activeScope=this.state.scopeStack.length===0?null:this.state.scopeStack[this.state.scopeStack.length-1],t.forEach(r=>{!r.kept&&r.scopeId===a.id&&this.track(r)})}gradients(e,t,n,a=!1){if(D(t.length>0,()=>"gradients() received an empty list of xs."),n!=null&&n.dtype!=="float32")throw new Error(`dy must have 'float32' dtype, but has '${n.dtype}'`);let r=this.scopedRun(()=>this.startTape(),()=>this.endTape(),()=>this.tidy("forward",e));D(r instanceof Be,()=>"The result y returned by f() must be a tensor.");let s=rN(this.state.activeTape,t,r);if(!a&&s.length===0&&t.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. 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r=M(e,"sparseIndices","sparseToDense","int32"),s=M(t,"sparseValues","sparseToDense"),i=M(a,"defaultValue","sparseToDense",s.dtype);PM(r,s,n,i);let o={sparseIndices:r,sparseValues:s,defaultValue:i},u={outputShape:n};return P.runKernel(Sc,o,u)}var cA=L({sparseToDense_:LM});function WM(e,t){let n=M(t,"indices","gatherND","int32"),a={params:M(e,"x","gatherND","string_or_numeric"),indices:n};return P.runKernel(Oo,a)}var U3=L({gatherND_:WM});function BM(e,t){if(t==null)return e.shape.slice();if(cr(e.shape,t))return t;if(e.shape.length===t.length){let n=[];for(let a=0;a<e.shape.length;a++)t[a]==null&&e.shape[a]!=null?n.push(e.shape[a]):n.push(t[a]);return n}return t}function VM(e,t,n,a){let r=M(e,"x","dropout");if(D(r.dtype==="float32",()=>`x has to be a floating point tensor since it's going to be scaled, but got a ${r.dtype} tensor instead.`),D(t>=0&&t<1,()=>`rate must be a float in the range [0, 1), but got ${t}.`),t===0)return e instanceof Be?r.clone():r;let 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GM({x:e,filter:t,strides:n,pad:a,dataFormat:r="NHWC",dilations:s=[1,1],dimRoundingMode:i,bias:o,activation:u="linear",preluActivationWeights:l,leakyreluAlpha:d}){if(u=u||"linear",bh(P.state.gradientDepth,u)===!1){let b=mr(e,t,n,a,r,s,i);return o!=null&&(b=ie(b,o)),xh(b,u,l,d)}let p=M(e,"x","conv2d"),c=M(t,"filter","conv2d"),h=p,m=!1;p.rank===3&&(m=!0,h=q(p,[1,p.shape[0],p.shape[1],p.shape[2]])),D(h.rank===4,()=>`Error in fused conv2d: input must be rank 4, but got rank ${h.rank}.`),D(c.rank===4,()=>`Error in fused conv2d: filter must be rank 4, but got rank ${c.rank}.`),i!=null&&D(Gt(a),()=>`Error in fused conv2d: pad must be an integer when using, dimRoundingMode ${i} but got pad ${a}.`),D(h.shape[3]===c.shape[2],()=>`Error in conv2d: depth of input (${h.shape[3]}) must match input depth for filter ${c.shape[2]}.`),D(Ga(n,s),()=>`Error in conv2D: Either strides or dilations must be 1. 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s={skipEmpty:n},i={input:a,delimiter:r},o=P.runKernel(Tc,i,s);return{indices:o[0],values:o[1],shape:o[2]}}var x$=L({stringSplit_:y$});function b$(e,t){let n=M(e,"input","stringToHashBucketFast","string"),a={numBuckets:t};if(t<=0)throw new Error("Number of buckets must be at least 1");let r={input:n};return P.runKernel(Cc,r,a)}var v$=L({stringToHashBucketFast_:b$}),w$={fft:bd,ifft:Dl,rfft:vd,irfft:ch},k$={hammingWindow:tF,hannWindow:K3,frame:Z3,stft:sF},_e={flipLeftRight:uF,resizeNearestNeighbor:n7,resizeBilinear:t7,rotateWithOffset:pF,cropAndResize:oF,nonMaxSuppression:hF,nonMaxSuppressionAsync:vF,nonMaxSuppressionWithScore:kF,nonMaxSuppressionWithScoreAsync:SF,nonMaxSuppressionPadded:TF,nonMaxSuppressionPaddedAsync:EF,threshold:DF,transform:zF},r7={bandPart:PF,gramSchmidt:WF,qr:VF},I$={absoluteDifference:HF,computeWeightedLoss:yr,cosineDistance:qF,hingeLoss:KF,huberLoss:YF,logLoss:QF,meanSquaredError:t$,sigmoidCrossEntropy:r$,softmaxCrossEntropy:o$},wd={sparseFillEmptyRows:u$,sparseReshape:p$,sparseSegmentMean:h$,sparseSegmentSum:m$},vh={stringNGrams:g$,stringSplit:x$,stringToHashBucketFast:v$},xr=class extends o3{minimize(e,t=!1,n){let{value:a,grads:r}=this.computeGradients(e,n);if(n!=null){let s=n.map(i=>({name:i.name,tensor:r[i.name]}));this.applyGradients(s)}else this.applyGradients(r);return he(r),t?a:(a.dispose(),null)}get iterations(){return this.iterations_==null&&(this.iterations_=0),this.iterations_}incrementIterations(){this.iterations_=this.iterations+1}computeGradients(e,t){return E3(e,t)}dispose(){this.iterations_!=null&&he(this.iterations_)}async saveIterations(){return this.iterations_==null&&(this.iterations_=0),{name:"iter",tensor:ke(this.iterations_,"int32")}}async getWeights(){throw new Error("getWeights() is not implemented for this optimizer yet.")}async setWeights(e){throw new Error(`setWeights() is not implemented for this optimizer class ${this.getClassName()}`)}async extractIterations(e){return this.iterations_=(await e[0].tensor.data())[0],e.slice(1)}};Object.defineProperty(xr,Symbol.hasInstance,{value:e=>e.minimize!=null&&e.computeGradients!=null&&e.applyGradients!=null});var wh=class extends xr{constructor(e,t,n=null){super();this.learningRate=e,this.rho=t,this.epsilon=n,this.accumulatedGrads=[],this.accumulatedUpdates=[],n==null&&(this.epsilon=P.backend.epsilon())}applyGradients(e){(Array.isArray(e)?e.map(t=>t.name):Object.keys(e)).forEach((t,n)=>{let a=P.registeredVariables[t],r=!1;this.accumulatedGrads[n]==null&&(this.accumulatedGrads[n]={originalName:`${t}/accum_grad`,variable:V(()=>Ge(a).variable(r))}),this.accumulatedUpdates[n]==null&&(this.accumulatedUpdates[n]={originalName:`${t}/accum_var`,variable:V(()=>Ge(a).variable(r))});let s=Array.isArray(e)?e[n].tensor:e[t];if(s==null)return;let i=this.accumulatedGrads[n].variable,o=this.accumulatedUpdates[n].variable;V(()=>{let u=ie(B(i,this.rho),B(ot(s),1-this.rho)),l=B(me(nn(ie(o,this.epsilon)),nn(ie(i,this.epsilon))),s),d=ie(B(o,this.rho),B(ot(l),1-this.rho));i.assign(u),o.assign(d);let p=ie(B(l,-this.learningRate),a);a.assign(p)})}),this.incrementIterations()}dispose(){this.accumulatedUpdates!=null&&(he(this.accumulatedGrads.map(e=>e.variable)),he(this.accumulatedUpdates.map(e=>e.variable)))}async getWeights(){let e=[...this.accumulatedGrads,...this.accumulatedUpdates];return[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=e.length/2,n=!1;this.accumulatedGrads=e.slice(0,t).map(a=>({originalName:a.name,variable:a.tensor.variable(n)})),this.accumulatedUpdates=e.slice(t,t*2).map(a=>({originalName:a.name,variable:a.tensor.variable(n)}))}getConfig(){return{learningRate:this.learningRate,rho:this.rho,epsilon:this.epsilon}}static fromConfig(e,t){return new e(t.learningRate,t.rho,t.epsilon)}};wh.className="Adadelta";jr(wh);var kh=class extends xr{constructor(e,t=.1){super();this.learningRate=e,this.initialAccumulatorValue=t,this.accumulatedGrads=[]}applyGradients(e){(Array.isArray(e)?e.map(t=>t.name):Object.keys(e)).forEach((t,n)=>{let a=P.registeredVariables[t];if(this.accumulatedGrads[n]==null){let i=!1;this.accumulatedGrads[n]={originalName:`${t}/accumulator`,variable:V(()=>El(a.shape,this.initialAccumulatorValue).variable(i))}}let r=Array.isArray(e)?e[n].tensor:e[t];if(r==null)return;let s=this.accumulatedGrads[n].variable;V(()=>{let i=ie(s,ot(r));s.assign(i);let o=ie(B(me(r,nn(ie(i,P.backend.epsilon()))),-this.learningRate),a);a.assign(o)})}),this.incrementIterations()}dispose(){this.accumulatedGrads!=null&&he(this.accumulatedGrads.map(e=>e.variable))}async getWeights(){return[await this.saveIterations()].concat(this.accumulatedGrads.map(e=>({name:e.originalName,tensor:e.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=!1;this.accumulatedGrads=e.map(n=>({originalName:n.name,variable:n.tensor.variable(t)}))}getConfig(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}}static fromConfig(e,t){return new e(t.learningRate,t.initialAccumulatorValue)}};kh.className="Adagrad";jr(kh);var Ih=class extends xr{constructor(e,t,n,a=null){super();this.learningRate=e,this.beta1=t,this.beta2=n,this.epsilon=a,this.accumulatedFirstMoment=[],this.accumulatedSecondMoment=[],V(()=>{this.accBeta1=ke(t).variable(),this.accBeta2=ke(n).variable()}),a==null&&(this.epsilon=P.backend.epsilon())}applyGradients(e){let t=Array.isArray(e)?e.map(n=>n.name):Object.keys(e);V(()=>{let n=ge(1,this.accBeta1),a=ge(1,this.accBeta2);t.forEach((r,s)=>{let i=P.registeredVariables[r],o=!1;this.accumulatedFirstMoment[s]==null&&(this.accumulatedFirstMoment[s]={originalName:`${r}/m`,variable:V(()=>Ge(i).variable(o))}),this.accumulatedSecondMoment[s]==null&&(this.accumulatedSecondMoment[s]={originalName:`${r}/v`,variable:V(()=>Ge(i).variable(o))});let u=Array.isArray(e)?e[s].tensor:e[r];if(u==null)return;let l=this.accumulatedFirstMoment[s].variable,d=this.accumulatedSecondMoment[s].variable,p=ie(B(l,this.beta1),B(u,1-this.beta1)),c=ie(B(d,this.beta2),B(ot(u),1-this.beta2)),h=me(p,n),m=me(c,a);l.assign(p),d.assign(c);let f=ie(B(me(h,ie(nn(m),this.epsilon)),-this.learningRate),i);i.assign(f)}),this.accBeta1.assign(B(this.accBeta1,this.beta1)),this.accBeta2.assign(B(this.accBeta2,this.beta2))}),this.incrementIterations()}dispose(){this.accBeta1.dispose(),this.accBeta2.dispose(),this.accumulatedFirstMoment!=null&&he(this.accumulatedFirstMoment.map(e=>e.variable)),this.accumulatedSecondMoment!=null&&he(this.accumulatedSecondMoment.map(e=>e.variable))}async getWeights(){let e=[...this.accumulatedFirstMoment,...this.accumulatedSecondMoment];return[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e),V(()=>{this.accBeta1.assign(gr(this.beta1,this.iterations_+1)),this.accBeta2.assign(gr(this.beta2,this.iterations_+1))});let t=e.length/2,n=!1;this.accumulatedFirstMoment=e.slice(0,t).map(a=>({originalName:a.name,variable:a.tensor.variable(n)})),this.accumulatedSecondMoment=e.slice(t,t*2).map(a=>({originalName:a.name,variable:a.tensor.variable(n)}))}getConfig(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}}static fromConfig(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon)}};Ih.className="Adam";jr(Ih);var Sh=class extends xr{constructor(e,t,n,a=null,r=0){super();this.learningRate=e,this.beta1=t,this.beta2=n,this.epsilon=a,this.decay=r,this.accumulatedFirstMoment=[],this.accumulatedWeightedInfNorm=[],V(()=>{this.iteration=ke(0).variable(),this.accBeta1=ke(t).variable()}),a==null&&(this.epsilon=P.backend.epsilon())}applyGradients(e){let t=Array.isArray(e)?e.map(n=>n.name):Object.keys(e);V(()=>{let n=ge(1,this.accBeta1),a=me(-this.learningRate,ie(B(this.iteration,this.decay),1));t.forEach((r,s)=>{let 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Error("getWeights() is not implemented for Adamax yet.")}async setWeights(e){throw new Error("setWeights() is not implemented for Adamax yet.")}getConfig(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}}static fromConfig(e,t){return new e(t.learningRate,t.beta1,t.beta2,t.epsilon,t.decay)}};Sh.className="Adamax";jr(Sh);var kd=class extends xr{constructor(e){super();this.learningRate=e,this.setLearningRate(e)}applyGradients(e){(Array.isArray(e)?e.map(t=>t.name):Object.keys(e)).forEach((t,n)=>{let a=Array.isArray(e)?e[n].tensor:e[t];if(a==null)return;let r=P.registeredVariables[t];V(()=>{let s=ie(B(this.c,a),r);r.assign(s)})}),this.incrementIterations()}setLearningRate(e){this.learningRate=e,this.c!=null&&this.c.dispose(),this.c=Xt(ke(-e))}dispose(){this.c.dispose()}async getWeights(){return[await this.saveIterations()]}async setWeights(e){if(e=await this.extractIterations(e),e.length!==0)throw new Error("SGD optimizer does 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this.saveIterations()].concat(this.accumulations.map(e=>({name:e.originalName,tensor:e.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=!1;this.accumulations=e.map(n=>({originalName:n.name,variable:n.tensor.variable(t)}))}getConfig(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}}static fromConfig(e,t){return new e(t.learningRate,t.momentum,t.useNesterov)}};Nh.className="Momentum";jr(Nh);var Th=class extends xr{constructor(e,t=.9,n=0,a=null,r=!1){super();if(this.learningRate=e,this.decay=t,this.momentum=n,this.epsilon=a,this.accumulatedMeanSquares=[],this.accumulatedMoments=[],this.accumulatedMeanGrads=[],this.centered=r,a==null&&(this.epsilon=P.backend.epsilon()),e==null)throw new Error("learningRate for RMSPropOptimizer must be defined.")}applyGradients(e){(Array.isArray(e)?e.map(t=>t.name):Object.keys(e)).forEach((t,n)=>{let a=P.registeredVariables[t],r=!1;this.accumulatedMeanSquares[n]==null&&(this.accumulatedMeanSquares[n]={originalName:`${t}/rms`,variable:V(()=>Ge(a).variable(r))}),this.accumulatedMoments[n]==null&&(this.accumulatedMoments[n]={originalName:`${t}/momentum`,variable:V(()=>Ge(a).variable(r))}),this.accumulatedMeanGrads[n]==null&&this.centered&&(this.accumulatedMeanGrads[n]={originalName:`${t}/mg`,variable:V(()=>Ge(a).variable(r))});let s=Array.isArray(e)?e[n].tensor:e[t];if(s==null)return;let i=this.accumulatedMeanSquares[n].variable,o=this.accumulatedMoments[n].variable;V(()=>{let u=ie(B(i,this.decay),B(ot(s),1-this.decay));if(this.centered){let l=this.accumulatedMeanGrads[n].variable,d=ie(B(l,this.decay),B(s,1-this.decay)),p=me(B(s,this.learningRate),nn(ge(u,ie(ot(d),this.epsilon)))),c=ie(B(o,this.momentum),p);i.assign(u),l.assign(d),o.assign(c);let h=ge(a,c);a.assign(h)}else{let l=ie(B(i,this.decay),B(ot(s),1-this.decay)),d=ie(B(o,this.momentum),me(B(s,this.learningRate),nn(ie(l,this.epsilon))));i.assign(l),o.assign(d);let p=ge(a,d);a.assign(p)}})}),this.incrementIterations()}dispose(){this.accumulatedMeanSquares!=null&&he(this.accumulatedMeanSquares.map(e=>e.variable)),this.accumulatedMeanGrads!=null&&this.centered&&he(this.accumulatedMeanGrads.map(e=>e.variable)),this.accumulatedMoments!=null&&he(this.accumulatedMoments.map(e=>e.variable))}async getWeights(){let e=[...this.accumulatedMeanSquares,...this.accumulatedMoments];return this.centered&&e.push(...this.accumulatedMeanGrads),[await this.saveIterations()].concat(e.map(t=>({name:t.originalName,tensor:t.variable})))}async setWeights(e){e=await this.extractIterations(e);let t=this.centered?e.length/3:e.length/2,n=!1;this.accumulatedMeanSquares=e.slice(0,t).map(a=>({originalName:a.name,variable:a.tensor.variable(n)})),this.accumulatedMoments=e.slice(t,t*2).map(a=>({originalName:a.name,variable:a.tensor.variable(n)})),this.centered&&(this.accumulatedMeanGrads=e.slice(t*2,t*3).map(a=>({originalName:a.name,variable:a.tensor.variable(n)})))}getConfig(){return{learningRate:this.learningRate,decay:this.decay,momentum:this.momentum,epsilon:this.epsilon,centered:this.centered}}static fromConfig(e,t){return new e(t.learningRate,t.decay,t.momentum,t.epsilon,t.centered)}};Th.className="RMSProp";jr(Th);var Mi=class{static sgd(e){return new kd(e)}static momentum(e,t,n=!1){return new Nh(e,t,n)}static rmsprop(e,t=.9,n=0,a=null,r=!1){return new Th(e,t,n,a,r)}static adam(e=.001,t=.9,n=.999,a=null){return new Ih(e,t,n,a)}static adadelta(e=.001,t=.95,n=null){return new wh(e,t,n)}static adamax(e=.002,t=.9,n=.999,a=null,r=0){return new Sh(e,t,n,a,r)}static 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r=a.map(o=>n.data.get(o.dataId).values),s=Ve(a[0].shape,a[0].dtype),i=s.values;for(let o=0;o<a.length;o++){let u=r[o];for(let l=0;l<i.length;l++)i[l]+=u[l]}return n.makeTensorInfo(s.shape,s.dtype,s.values)}var vO={kernelName:xs,backendName:"cpu",kernelFunc:bO};function wO(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a;we(r,"all");let o=k.parseAxisParam(s,r.shape),u=o,l=F.getAxesPermutation(u,r.shape.length),d=r;l!=null&&(d=ua({inputs:{x:r},backend:n,attrs:{perm:l}}),u=F.getInnerMostAxes(u.length,r.shape.length)),F.assertAxesAreInnerMostDims("all",u,d.shape.length);let[p,c]=F.computeOutAndReduceShapes(d.shape,u),h=k.sizeFromShape(c),m=k.makeZerosTypedArray(k.sizeFromShape(p),d.dtype),f=n.data.get(d.dataId).values;for(let g=0;g<m.length;++g){let y=g*h,x=f[y];for(let v=0;v<h;++v){let b=f[y+v];x=x&&b}m[g]=x}l!=null&&n.disposeIntermediateTensorInfo(d);let A=n.makeTensorInfo(p,d.dtype,m);if(i){let 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SO={kernelName:yo,backendName:"cpu",kernelFunc:IO};function NO(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s}=a;we(r,"argMax");let i=k.parseAxisParam(s,r.shape),o=F.getAxesPermutation(i,r.shape.length),u=r,l=[];o!=null&&(u=ua({inputs:{x:r},backend:n,attrs:{perm:o}}),l.push(u),i=F.getInnerMostAxes(i.length,u.shape.length)),i=[i[0]],F.assertAxesAreInnerMostDims("argMax",i,u.shape.length);let[d,p]=F.computeOutAndReduceShapes(u.shape,i),c=k.sizeFromShape(d),h=k.makeZerosTypedArray(c,"int32"),m=k.sizeFromShape(p),f=n.data.get(u.dataId).values;for(let A=0;A<h.length;++A){let g=A*m,y=f[g],x=0;for(let v=0;v<m;++v){let b=f[g+v];b>y&&(y=b,x=v)}h[A]=x}return l.forEach(A=>n.disposeIntermediateTensorInfo(A)),n.makeTensorInfo(d,"int32",h)}var TO={kernelName:bs,backendName:"cpu",kernelFunc:NO};function CO(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s}=a;we(r,"argMin");let 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le=Z*u-g,oe=le;for(;oe<0;)oe+=p;let xe=Math.min(r.inWidth,m+le),fe=se+Z*C,Ne=y,Te=0,De=0;for(let Oe=W;Oe<G;Oe+=l){let tt=$+Oe*a[1];for(let nt=ne;nt<Q;nt+=d){let it=tt+nt*a[2];for(let Ze=oe;Ze<xe;Ze+=p){let ht=it+Ze*a[3],Ue=e[ht+S];if(s==="max"&&Ue>Ne?Ne=Ue:s==="avg"&&(Te+=Ue,De++),isNaN(Ne))break}if(isNaN(Ne))break}if(isNaN(Ne))break}let Pe=fe+S;v[Pe]=s==="avg"?Te/De:Ne}}}}return x}function BO(e,t){let n=Ve(t.outShape,"int32"),a=t.strideDepth,r=t.strideHeight,s=t.strideWidth,i=t.dilationDepth,o=t.dilationHeight,u=t.dilationWidth,l=t.effectiveFilterDepth,d=t.effectiveFilterHeight,p=t.effectiveFilterWidth,c=t.padInfo.front,h=t.padInfo.top,m=t.padInfo.left;for(let f=0;f<t.batchSize;++f)for(let A=0;A<t.inChannels;++A)for(let g=0;g<t.outDepth;++g){let y=g*a-c,x=y;for(;x<0;)x+=i;let v=Math.min(t.inDepth,l+y);for(let b=0;b<t.outHeight;++b){let w=b*r-h,N=w;for(;N<0;)N+=o;let C=Math.min(t.inHeight,d+w);for(let E=0;E<t.outWidth;++E){let _=E*s-m,$=_;for(;$<0;)$+=u;let 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d=F.computePool3DInfo(s.shape,i,o,1,u,l),p=d.strideDepth,c=d.strideHeight,h=d.strideWidth,m=d.filterDepth,f=d.filterHeight,A=d.filterWidth,g=d.dilationDepth,y=d.dilationHeight,x=d.dilationWidth,v=d.effectiveFilterDepth,b=d.effectiveFilterHeight,w=d.effectiveFilterWidth,N=v-1-d.padInfo.front,C=w-1-d.padInfo.left,E=b-1-d.padInfo.top,_=Ve(s.shape,"float32"),$=1/(m*f*A),S=n.bufferSync(r);for(let z=0;z<d.batchSize;++z)for(let O=0;O<d.inChannels;++O)for(let W=0;W<d.inDepth;++W)for(let G=0;G<d.inHeight;++G)for(let H=0;H<d.inWidth;++H){let J=W-N,K=G-E,ne=H-C,Q=0;for(let se=0;se<v;se+=g){let Z=(J+se)/p;if(!(Z<0||Z>=d.outDepth||Math.floor(Z)!==Z))for(let le=0;le<b;le+=y){let oe=(K+le)/c;if(!(oe<0||oe>=d.outHeight||Math.floor(oe)!==oe))for(let xe=0;xe<w;xe+=x){let fe=(ne+xe)/h;fe<0||fe>=d.outWidth||Math.floor(fe)!==fe||(Q+=S.get(z,Z,oe,fe,O))}}}_.set(Q*$,z,W,G,H,O)}return n.makeTensorInfo(_.shape,_.dtype,_.values)}var qO={kernelName:Kp,backendName:"cpu",kernelFunc:GO};function XO(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s}=t,i=s;we([r,s],"avgPoolGrad");let{filterSize:o,strides:u,pad:l}=a,d=F.computePool2DInfo(i.shape,o,u,1,l),p=d.strideHeight,c=d.strideWidth,h=d.filterHeight,m=d.filterWidth,f=d.dilationHeight,A=d.dilationWidth,g=d.effectiveFilterHeight,y=d.effectiveFilterWidth,x=y-1-d.padInfo.left,v=g-1-d.padInfo.top,b=Ve(i.shape,"float32"),w=1/(h*m),N=n.data.get(r.dataId).values,C=Ve(r.shape,"float32",N);for(let E=0;E<d.batchSize;++E)for(let _=0;_<d.inChannels;++_)for(let $=0;$<d.inHeight;++$)for(let S=0;S<d.inWidth;++S){let z=$-v,O=S-x,W=0;for(let G=0;G<g;G+=f){let H=(z+G)/p;if(!(H<0||H>=d.outHeight||Math.floor(H)!==H))for(let J=0;J<y;J+=A){let K=(O+J)/c;K<0||K>=d.outWidth||Math.floor(K)!==K||(W+=C.get(E,H,K,_))}}b.set(W*w,E,$,S,_)}return n.makeTensorInfo(b.shape,b.dtype,b.values)}var KO={kernelName:Xp,backendName:"cpu",kernelFunc:XO};function ZO(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,scale:s,offset:i,mean:o,variance:u}=t;k.assert(o.shape.length===u.shape.length,()=>"Batch normalization gradient requires mean and variance to have equal ranks."),k.assert(i==null||o.shape.length===i.shape.length,()=>"Batch normalization gradient requires mean and offset to have equal ranks."),k.assert(s==null||o.shape.length===s.shape.length,()=>"Batch normalization gradient requires mean and scale to have equal ranks."),we([r,o,u,s,i],"batchNorm");let{varianceEpsilon:l}=a;l==null&&(l=.001);let d=n.data.get(r.dataId).values,p=n.data.get(o.dataId).values,c=n.data.get(u.dataId).values,h=s?n.data.get(s.dataId).values:new Float32Array([1]),m=i?n.data.get(i.dataId).values:new Float32Array([0]),f=new Float32Array(d.length),A=m.length,g=h.length,y=c.length,x=p.length,v=0,b=0,w=0,N=0;for(let C=0;C<d.length;++C)f[C]=m[v++]+(d[C]-p[b++])*h[w++]/Math.sqrt(c[N++]+l),v>=A&&(v=0),b>=x&&(b=0),w>=g&&(w=0),N>=y&&(N=0);return n.makeTensorInfo(r.shape,r.dtype,f)}var YO={kernelName:Ds,backendName:"cpu",kernelFunc:ZO};function JO(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{blockShape:s,crops:i}=a;we([r],"batchToSpaceND");let o=s.reduce((g,y)=>g*y),u=F.getReshaped(r.shape,s,o),l=F.getPermuted(u.length,s.length),d=F.getReshapedPermuted(r.shape,s,o),p=F.getSliceBeginCoords(i,s.length),c=F.getSliceSize(d,i,s.length),h=At({inputs:{x:r},backend:n,attrs:{shape:u}}),m=ua({inputs:{x:h},backend:n,attrs:{perm:l}}),f=At({inputs:{x:m},backend:n,attrs:{shape:d}}),A=Di({inputs:{x:f},backend:n,attrs:{begin:p,size:c}});return n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(m),n.disposeIntermediateTensorInfo(f),A}var QO={kernelName:Du,backendName:"cpu",kernelFunc:JO};function ez(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,weights:s}=t,{size:i}=a,o=n.data.get(r.dataId).values,u=n.data.get(s.dataId).values,l=bA(o,u,s.dtype,s.shape,i);return n.makeTensorInfo([i],s.dtype,l)}var tz={kernelName:Zp,backendName:"cpu",kernelFunc:ez},nz=rt(zr,(e,t)=>{let n=t;return e>n.clipValueMax?n.clipValueMax:e<n.clipValueMin?n.clipValueMin:e}),az={kernelName:zr,backendName:"cpu",kernelFunc:nz},rz=e=>{let{x:t}=e.inputs,n=e.backend,a=new Float32Array(k.sizeFromShape(t.shape)),r=n.data.get(t.dataId),s=r.complexTensorInfos.real,i=r.complexTensorInfos.imag,o=n.data.get(s.dataId).values,u=n.data.get(i.dataId).values;for(let l=0;l<o.length;l++){let d=o[l],p=u[l];a[l]=Math.hypot(d,p)}return n.makeOutput(a,t.shape,"float32")},sz={kernelName:Ou,backendName:"cpu",kernelFunc:rz};function Ll(e){let{inputs:t,backend:n}=e,{input:a}=t,r=n.data.get(a.dataId).complexTensorInfos.imag,s=n.data.get(r.dataId).values;return n.makeTensorInfo(r.shape,r.dtype,s)}var iz={kernelName:pc,backendName:"cpu",kernelFunc:Ll};function Wl(e){let{inputs:t,backend:n,attrs:a}=e,{axis:r}=a,s=k.parseAxisParam(r,t[0].shape)[0],i=F.computeOutShape(t.map(f=>f.shape),s);if(k.sizeFromShape(i)===0)return n.makeTensorInfo(i,t[0].dtype,[]);let o=t.filter(f=>k.sizeFromShape(f.shape)>0);if(o.length===1)return Ya({inputs:{x:o[0]},backend:n});let u=o.map(f=>f.shape);if(F.assertParamsConsistent(u,s),o[0].dtype==="complex64"){let f=o.map(v=>$i({inputs:{input:v},backend:n})),A=o.map(v=>Ll({inputs:{input:v},backend:n})),g=Wl({inputs:f,backend:n,attrs:{axis:s}}),y=Wl({inputs:A,backend:n,attrs:{axis:s}}),x=qn({inputs:{real:g,imag:y},backend:n});return f.forEach(v=>n.disposeIntermediateTensorInfo(v)),A.forEach(v=>n.disposeIntermediateTensorInfo(v)),n.disposeIntermediateTensorInfo(g),n.disposeIntermediateTensorInfo(y),x}let l=o.map(f=>{let A=k.sizeFromShape(f.shape.slice(s));return At({inputs:{x:f},backend:n,attrs:{shape:[-1,A]}})}),d=l.map(f=>({vals:n.data.get(f.dataId).values,shape:f.shape}));i=F.computeOutShape(l.map(f=>f.shape),1);let p=l[0].shape[0]===1,c=vA(d,i,t[0].dtype,p),h=F.computeOutShape(o.map(f=>f.shape),s),m=n.makeTensorInfo(h,t[0].dtype,c);return 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Lt(m.inShape,"float32"),A=f.values,g=n.data.get(r.dataId).values,y=n.data.get(s.dataId).values,[x,v,b]=p,{batchSize:w,filterHeight:N,filterWidth:C,inChannels:E,inHeight:_,inWidth:$,outChannels:S,outHeight:z,outWidth:O,strideHeight:W,strideWidth:G}=m;h=m.dataFormat;let H=N-1-m.padInfo.top,J=C-1-m.padInfo.left,K=h==="channelsLast",ne=f.strides[0],Q=K?f.strides[1]:f.strides[2],se=K?f.strides[2]:1,Z=K?1:f.strides[1],le=c[0],oe=K?c[1]:c[2],xe=K?c[2]:1,fe=K?1:c[1];for(let Ne=0;Ne<w;++Ne)for(let Te=0;Te<E;++Te)for(let De=0;De<_;++De){let Pe=De-H,Oe=Math.max(0,Math.ceil(Pe/W)),tt=Math.min(z,(N+Pe)/W);for(let nt=0;nt<$;++nt){let it=nt-J,Ze=Math.max(0,Math.ceil(it/G)),ht=Math.min(O,(C+it)/G),Ue=0;for(let kt=Oe;kt<tt;++kt){let ta=kt*W-Pe;for(let Qt=Ze;Qt<ht;++Qt){let In=Qt*G-it,na=le*Ne+oe*kt+xe*Qt,_n=x*(N-1-ta)+v*(C-1-In)+b*Te;for(let un=0;un<S;++un){let en=g[na+fe*un],Ba=y[_n+un];Ue+=en*Ba}}}let kn=ne*Ne+Q*De+se*nt+Z*Te;A[kn]=Ue}}return n.makeTensorInfo(f.shape,f.dtype,f.values)}var cz={kernelName:Ns,backendName:"cpu",kernelFunc:pz};function hz(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s}=t,{strides:i,pad:o,dilations:u}=a;we([r,s],"conv3d");let l=F.computeConv3DInfo(r.shape,s.shape,i,u,o),{filterDepth:d,filterHeight:p,filterWidth:c,dilationDepth:h,dilationHeight:m,dilationWidth:f,padInfo:A}=l,g=A.front,y=A.left,x=A.top,v=new Lt(l.outShape,r.dtype),b=n.data.get(r.dataId).values,w=n.data.get(s.dataId).values,N=v.values,C=k.computeStrides(r.shape),E=k.computeStrides(s.shape);for(let _=0;_<l.batchSize;++_){let $=_*C[0],S=_*v.strides[0];for(let z=0;z<l.outDepth;++z){let O=S+z*v.strides[1],W=z*l.strideDepth-g;for(let G=0;G<d;++G){let H=W+G*h;if(H<0||H>=l.inDepth)continue;let J=G*E[0],K=$+H*C[1];for(let ne=0;ne<l.outHeight;++ne){let Q=O+ne*v.strides[2],se=ne*l.strideHeight-x;for(let Z=0;Z<p;++Z){let le=se+Z*m;if(le<0||le>=l.inHeight)continue;let oe=J+Z*E[1],xe=K+le*C[2];for(let fe=0;fe<l.outWidth;++fe){let Ne=Q+fe*l.outChannels,Te=fe*l.strideWidth-y;for(let De=0;De<c;++De){let Pe=Te+De*f;if(Pe<0||Pe>=l.inWidth)continue;let Oe=oe+De*E[2],tt=xe+Pe*l.inChannels,nt=Oe;for(let it=0;it<l.inChannels;++it){let Ze=b[tt+it];for(let ht=0;ht<l.outChannels;++ht)N[Ne+ht]+=Ze*w[nt+ht];nt+=l.outChannels}}}}}}}}return n.makeTensorInfo(v.shape,v.dtype,v.values)}var fz={kernelName:zu,backendName:"cpu",kernelFunc:hz};function mz(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,dy:s}=t,{strides:i,pad:o,filterShape:u}=a;we([r,s],"conv3dBackpropFilterV2");let l=k.computeStrides(r.shape),d=k.computeStrides(s.shape),p=F.computeConv3DInfo(r.shape,u,i,1,o),c=p.strideDepth,h=p.strideHeight,m=p.strideWidth,f=p.filterDepth,A=p.filterHeight,g=p.filterWidth,y=new Lt(p.filterShape,"float32"),x=y.values,[v,b,w,N]=y.strides,C=n.data.get(s.dataId).values,[E,_,$,S]=d,z=n.data.get(r.dataId).values,[O,W,G,H]=l,J=p.padInfo.front,K=p.padInfo.left,ne=p.padInfo.top;for(let Q=0;Q<f;++Q){let se=Math.max(0,Math.ceil((J-Q)/c)),Z=Math.min(p.outDepth,(p.inDepth+J-Q)/c),le=Q*v;for(let oe=0;oe<A;++oe){let xe=Math.max(0,Math.ceil((ne-oe)/h)),fe=Math.min(p.outHeight,(p.inHeight+ne-oe)/h),Ne=oe*b+le;for(let Te=0;Te<g;++Te){let De=Math.max(0,Math.ceil((K-Te)/m)),Pe=Math.min(p.outWidth,(p.inWidth+K-Te)/m),Oe=Te*w+Ne;for(let tt=0;tt<p.inChannels;++tt){let nt=tt*N+Oe;for(let it=0;it<p.outChannels;++it){let Ze=0;for(let ht=0;ht<p.batchSize;++ht){let Ue=ht*O,kn=ht*E;for(let kt=se;kt<Z;++kt){let ta=(Q+kt*c-J)*W+Ue,Qt=kt*_+kn;for(let In=xe;In<fe;++In){let na=(oe+In*h-ne)*G+ta,_n=In*$+Qt;for(let un=De;un<Pe;++un){let en=(Te+un*m-K)*H+na,Ba=un*S+_n;Ze+=z[en+tt]*C[Ba+it]}}}}x[nt+it]=Ze}}}}}return n.makeTensorInfo(y.shape,y.dtype,y.values)}var Az={kernelName:Qp,backendName:"cpu",kernelFunc:mz};function gz(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,filter:s}=t,{pad:i,strides:o,inputShape:u}=a;we([r],"conv3dBackpropInputV2");let l=k.computeStrides(r.shape),d=k.computeStrides(s.shape),p=F.computeConv3DInfo(u,s.shape,o,1,i),c=new Lt(p.inShape,"float32"),h=c.values,[m,f,A,g]=c.strides,y=n.data.get(r.dataId).values,[x,v,b,w]=l,N=n.data.get(s.dataId).values,[C,E,_,$]=d,{batchSize:S,filterDepth:z,filterHeight:O,filterWidth:W,inChannels:G,inDepth:H,inHeight:J,inWidth:K,outChannels:ne,outDepth:Q,outHeight:se,outWidth:Z,strideDepth:le,strideHeight:oe,strideWidth:xe}=p,fe=z-1-p.padInfo.front,Ne=O-1-p.padInfo.top,Te=W-1-p.padInfo.left;for(let De=0;De<S;++De)for(let Pe=0;Pe<G;++Pe)for(let Oe=0;Oe<H;++Oe){let tt=Oe-fe,nt=Math.max(0,Math.ceil(tt/le)),it=Math.min(Q,(z+tt)/le);for(let Ze=0;Ze<J;++Ze){let ht=Ze-Ne,Ue=Math.max(0,Math.ceil(ht/oe)),kn=Math.min(se,(O+ht)/oe);for(let kt=0;kt<K;++kt){let ta=kt-Te,Qt=Math.max(0,Math.ceil(ta/xe)),In=Math.min(Z,(W+ta)/xe),na=0;for(let _n=nt;_n<it;++_n){let un=_n*le-tt;for(let en=Ue;en<kn;++en){let Ba=en*oe-ht;for(let fa=Qt;fa<In;++fa){let ma=fa*xe-ta,Nr=x*De+v*_n+b*en+w*fa,or=C*(z-1-un)+E*(O-1-Ba)+_*(W-1-ma)+$*Pe;for(let Tr=0;Tr<ne;++Tr){let Qi=y[Nr+Tr],Va=N[or+Tr];na+=Qi*Va}}}}h[m*De+f*Oe+A*Ze+g*kt+Pe]=na}}}return n.makeTensorInfo(c.shape,c.dtype,c.values)}var yz={kernelName:ec,backendName:"cpu",kernelFunc:gz},xz=rt(Ts,e=>Math.cos(e)),bz={kernelName:Ts,backendName:"cpu",kernelFunc:xz},vz=rt(So,e=>Math.cosh(e)),wz={kernelName:So,backendName:"cpu",kernelFunc:vz};function kz(e){let{inputs:t,backend:n,attrs:a}=e,{image:r,boxes:s,boxInd:i}=t,{cropSize:o,method:u,extrapolationValue:l}=a,[d,p,c,h]=r.shape,m=s.shape[0],[f,A]=o,g=Ve([m,f,A,h],"float32"),y=n.data.get(s.dataId).values,x=n.data.get(i.dataId).values,v=n.data.get(r.dataId).values,b=k.computeStrides(r.shape),w=k.computeStrides(g.shape);for(let N=0;N<m;N++){let C=N*4,E=y[C],_=y[C+1],$=y[C+2],S=y[C+3],z=x[N];if(z>=d)continue;let O=f>1?($-E)*(p-1)/(f-1):0,W=A>1?(S-_)*(c-1)/(A-1):0;for(let G=0;G<f;G++){let H=f>1?E*(p-1)+G*O:.5*(E+$)*(p-1);if(H<0||H>p-1){for(let J=0;J<A;J++)for(let K=0;K<h;K++){let ne=K+J*w[2]+G*w[1]+N*w[0];g.values[ne]=l}continue}if(u==="bilinear"){let J=Math.floor(H),K=Math.ceil(H),ne=H-J;for(let Q=0;Q<A;Q++){let se=A>1?_*(c-1)+Q*W:.5*(_+S)*(c-1);if(se<0||se>c-1){for(let xe=0;xe<h;xe++){let fe=xe+Q*w[2]+G*w[1]+N*w[0];g.values[fe]=l}continue}let Z=Math.floor(se),le=Math.ceil(se),oe=se-Z;for(let xe=0;xe<h;xe++){let fe=xe+Z*b[2]+J*b[1]+z*b[0],Ne=v[fe];fe=xe+le*b[2]+J*b[1]+z*b[0];let Te=v[fe];fe=xe+Z*b[2]+K*b[1]+z*b[0];let De=v[fe];fe=xe+le*b[2]+K*b[1]+z*b[0];let Pe=v[fe],Oe=Ne+(Te-Ne)*oe,tt=De+(Pe-De)*oe;fe=xe+Q*w[2]+G*w[1]+N*w[0],g.values[fe]=Oe+(tt-Oe)*ne}}}else for(let J=0;J<A;++J){let K=A>1?_*(c-1)+J*W:.5*(_+S)*(c-1);if(K<0||K>c-1){for(let se=0;se<h;se++){let Z=se+J*w[2]+G*w[1]+N*w[0];g.values[Z]=l}continue}let ne=Math.round(K),Q=Math.round(H);for(let se=0;se<h;se++){let Z=se+ne*b[2]+Q*b[1]+z*b[0],le=se+J*w[2]+G*w[1]+N*w[0];g.values[le]=v[Z]}}}}return n.makeTensorInfo(g.shape,g.dtype,g.values)}var Iz={kernelName:No,backendName:"cpu",kernelFunc:kz};function Sz(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,exclusive:i,reverse:o}=a;we(r,"cumsum");let u=F.getAxesPermutation([s],r.shape.length),l=r;u!=null&&(l=ua({inputs:{x:r},backend:n,attrs:{perm:u}}));let d=F.getInnerMostAxes(1,r.shape.length)[0];if(d!==l.shape.length-1)throw new Error(`backend.cumsum in CPU expects an inner-most axis=${l.shape.length-1} but got axis=${d}`);let p=ya(l.dtype,"int32"),c=k.makeZerosTypedArray(k.sizeFromShape(l.shape),p),h=n.data.get(l.dataId).values,m=l.shape[l.shape.length-1],f=o?(g,y)=>g+m-y-1:(g,y)=>g+y;for(let g=0;g<h.length;g+=m)for(let y=0;y<m;y++){let x=f(g,y);if(y===0)c[x]=i?0:h[x];else{let v=f(g,y-1);c[x]=i?h[v]+c[v]:h[x]+c[v]}}let A=n.makeTensorInfo(l.shape,p,c);if(u!=null){let g=F.getUndoAxesPermutation(u),y=ua({inputs:{x:A},backend:n,attrs:{perm:g}});return n.disposeIntermediateTensorInfo(A),n.disposeIntermediateTensorInfo(l),y}return A}var Nz={kernelName:Cs,backendName:"cpu",kernelFunc:Sz};function Tz(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,weights:s}=t,{size:i,binaryOutput:o}=a;if(r.shape.length===1){let u=n.data.get(r.dataId).values,l=n.data.get(s.dataId).values,d=bA(u,l,s.dtype,s.shape,i);return n.makeTensorInfo([i],s.dtype,d)}else if(r.shape.length===2){let u=n.bufferSync(r),l=n.bufferSync(s),d=c7(u,l,i,o);return n.makeTensorInfo(d.shape,s.dtype,d.values)}throw new Error(`Error in denseBincount: input must be at most rank 2, but got rank${r.shape.length}.`)}var Cz={kernelName:tc,backendName:"cpu",kernelFunc:Tz};function Ez(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{blockSize:s,dataFormat:i}=a;k.assert(i==="NHWC",()=>`Only NHWC dataFormat supported on CPU for depthToSpace. 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Fz(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,dy:s}=t,{strides:i,dilations:o,pad:u,dimRoundingMode:l,filterShape:d}=a;we([r,s],"depthwiseConv2dNativeBackpropFilter");let p=F.computeConv2DInfo(r.shape,d,i,o,u,l,!0),{strideHeight:c,strideWidth:h,filterHeight:m,filterWidth:f}=p,A=new Lt(p.filterShape,"float32"),g=p.padInfo.left,y=p.padInfo.top,x=p.outChannels/p.inChannels,v=n.data.get(r.dataId).values,b=new Lt(r.shape,r.dtype,v),w=n.data.get(s.dataId).values,N=new Lt(s.shape,s.dtype,w);for(let C=0;C<m;++C){let E=Math.max(0,Math.ceil((y-C)/c)),_=Math.min(p.outHeight,(p.inHeight+y-C)/c);for(let $=0;$<f;++$){let S=Math.max(0,Math.ceil((g-$)/h)),z=Math.min(p.outWidth,(p.inWidth+g-$)/h);for(let O=0;O<p.outChannels;++O){let W=Math.trunc(O/x),G=O%x,H=0;for(let J=0;J<p.batchSize;++J)for(let K=E;K<_;++K){let ne=C+K*c-y;for(let Q=S;Q<z;++Q){let se=$+Q*h-g;H+=b.get(J,ne,se,W)*N.get(J,K,Q,O)}}A.set(H,C,$,W,G)}}}return n.makeTensorInfo(A.shape,A.dtype,A.values)}var $z={kernelName:nc,backendName:"cpu",kernelFunc:Fz};function Dz(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,filter:s}=t,{strides:i,dilations:o,pad:u,dimRoundingMode:l,inputShape:d}=a;we([r,s],"depthwiseConv2DNativeBackpropInput");let p=k.computeStrides(r.shape),c=k.computeStrides(s.shape),h=F.computeConv2DInfo(d,s.shape,i,o,u,l,!0),m=new Lt(h.inShape,"float32"),f=m.values,[A,g,y]=m.strides,x=n.data.get(r.dataId).values,[v,b,w]=p,N=n.data.get(s.dataId).values,[C,E,_]=c,{batchSize:$,filterHeight:S,filterWidth:z,inChannels:O,inHeight:W,inWidth:G,outChannels:H,outHeight:J,outWidth:K,strideHeight:ne,strideWidth:Q}=h,se=S-1-h.padInfo.top,Z=z-1-h.padInfo.left,le=H/O;for(let oe=0;oe<$;++oe)for(let xe=0;xe<O;++xe)for(let fe=0;fe<W;++fe){let Ne=fe-se,Te=Math.max(0,Math.ceil(Ne/ne)),De=Math.min(J,(S+Ne)/ne);for(let Pe=0;Pe<G;++Pe){let Oe=Pe-Z,tt=Math.max(0,Math.ceil(Oe/Q)),nt=Math.min(K,(z+Oe)/Q),it=0;for(let Ze=Te;Ze<De;++Ze){let ht=Ze*ne-Ne;for(let Ue=tt;Ue<nt;++Ue){let kn=Ue*Q-Oe,kt=v*oe+b*Ze+w*Ue,ta=C*(S-1-ht)+E*(z-1-kn)+_*xe;for(let Qt=0;Qt<le;++Qt){let In=xe*le+Qt,na=x[kt+In],_n=N[ta+Qt];it+=na*_n}}}f[A*oe+g*fe+y*Pe+xe]=it}}return n.makeTensorInfo(m.shape,m.dtype,m.values)}var Oz={kernelName:ac,backendName:"cpu",kernelFunc:Dz};function zz(e){let{inputs:t,backend:n}=e,{x:a}=t,r=k.sizeFromShape(a.shape),s=n.data.get(a.dataId).values,i=Ve([r,r],a.dtype),o=i.values;for(let l=0;l<s.length;l++)o[l*r+l]=s[l];let u=[...a.shape,...a.shape];return n.makeTensorInfo(u,i.dtype,i.values)}var _z={kernelName:rc,backendName:"cpu",kernelFunc:zz},Pz={kernelName:_u,backendName:"cpu",kernelFunc:({inputs:e,backend:t,attrs:n})=>{let{x:a,filter:r}=e,{strides:s,pad:i,dilations:o}=n,u=t,l=u.data.get(a.dataId).values,d=a.shape.length,p=u.data.get(r.dataId).values,c=r.shape.length,{batchSize:h,inHeight:m,inWidth:f,inChannels:A,outHeight:g,outWidth:y,padInfo:x,strideHeight:v,strideWidth:b,filterHeight:w,filterWidth:N,dilationHeight:C,dilationWidth:E,outShape:_}=F.computeDilation2DInfo(a.shape,r.shape,s,i,"NHWC",o),$=k.sizeFromShape(_),S=_.length,z=k.getArrayFromDType(a.dtype,$);for(let O=0;O<h;++O)for(let W=0;W<g;++W){let G=W*v-x.top;for(let H=0;H<y;++H){let J=H*b-x.left;for(let K=0;K<A;++K){let ne=Number.MIN_SAFE_INTEGER;for(let se=0;se<w;++se){let Z=G+se*C;if(Z>=0&&Z<m)for(let le=0;le<N;++le){let oe=J+le*E;if(oe>=0&&oe<f){let xe=k.locToIndex([O,Z,oe,K],d,k.computeStrides(a.shape)),fe=k.locToIndex([se,le,K],c,k.computeStrides(r.shape)),Ne=l[xe]+p[fe];Ne>ne&&(ne=Ne)}}}let 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Y_={kernelName:mc,backendName:"cpu",kernelFunc:Z_};function J_(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s,output:i}=t,o=s;we([s,i],"maxPoolGrad");let{filterSize:u,strides:l,pad:d,dimRoundingMode:p}=a,c=F.computePool2DInfo(o.shape,u,l,1,d,p),h=n.data.get(o.dataId).values,m=Ve(c.outShape,o.dtype,ev(h,o.shape,o.dtype,c).values),f=c.strideHeight,A=c.strideWidth,g=c.dilationHeight,y=c.dilationWidth,x=c.effectiveFilterHeight,v=c.effectiveFilterWidth,b=v-1-c.padInfo.left,w=x-1-c.padInfo.top,N=Ve(o.shape,"float32"),C=n.data.get(r.dataId).values,E=Ve(r.shape,"float32",C);for(let _=0;_<c.batchSize;++_)for(let $=0;$<c.inChannels;++$)for(let S=0;S<c.inHeight;++S)for(let z=0;z<c.inWidth;++z){let O=S-w,W=z-b,G=0;for(let H=0;H<x;H+=g){let J=(O+H)/f;if(!(J<0||J>=c.outHeight||Math.floor(J)!==J))for(let K=0;K<v;K+=y){let ne=(W+K)/A;if(ne<0||ne>=c.outWidth||Math.floor(ne)!==ne)continue;let Q=x*v-1-m.get(_,J,ne,$),se=H*v+K,Z=Q===se?1:0;Z!==0&&(G+=E.get(_,J,ne,$)*Z)}}N.set(G,_,S,z,$)}return 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t.makeTensorInfo([o.length],s,o)}var DP={kernelName:ju,backendName:"cpu",kernelFunc:$P},OP=rt(Qo,e=>1/e),zP={kernelName:Qo,backendName:"cpu",kernelFunc:OP};function _P(e){let{inputs:t,backend:n,attrs:a}=e,{images:r}=t,{alignCorners:s,halfPixelCenters:i,size:o}=a;we(r,"resizeBilinear");let u=k.computeStrides(r.shape),[l,d]=o,[p,c,h,m]=r.shape,f=n.data.get(r.dataId).values,A=new Float32Array(k.sizeFromShape([p,l,d,m])),g=[s&&l>1?c-1:c,s&&d>1?h-1:h],y=[s&&l>1?l-1:l,s&&d>1?d-1:d],x=0,v=g[0]/y[0],b=g[1]/y[1];for(let w=0;w<p;w++)for(let N=0;N<l;N++){let C;i?C=v*(N+.5)-.5:C=v*N;let E=Math.max(0,Math.floor(C)),_=C-E,$=Math.min(c-1,Math.ceil(C)),S=w*u[0]+E*u[1],z=w*u[0]+$*u[1];for(let O=0;O<d;O++){let W;i?W=b*(O+.5)-.5:W=b*O;let G=Math.max(0,Math.floor(W)),H=W-G,J=Math.min(h-1,Math.ceil(W)),K=S+G*u[2],ne=z+G*u[2],Q=S+J*u[2],se=z+J*u[2];for(let Z=0;Z<m;Z++){let le=f[K+Z],oe=f[ne+Z],xe=f[Q+Z],fe=f[se+Z],Ne=le+(xe-le)*H,Te=oe+(fe-oe)*H,De=Ne+(Te-Ne)*_;A[x++]=De}}}return n.makeTensorInfo([p,l,d,m],"float32",A)}var PP={kernelName:Js,backendName:"cpu",kernelFunc:_P};function LP(e){let{inputs:t,backend:n,attrs:a}=e,{images:r,dy:s}=t,{alignCorners:i}=a;we([s,r],"resizeBilinearGrad");let o=k.computeStrides(r.shape),[u,l,d,p]=r.shape,[,c,h]=s.shape,m=new Float32Array(u*l*d*p),f=[i&&c>1?l-1:l,i&&h>1?d-1:d],A=[i&&c>1?c-1:c,i&&h>1?h-1:h],g=f[0]/A[0],y=f[1]/A[1],x=n.data.get(s.dataId).values,v=0;for(let b=0;b<u;b++){let w=b*o[0];for(let N=0;N<c;N++){let C=N*g,E=Math.floor(C),_=Math.min(Math.ceil(C),l-1),$=w+E*o[1],S=w+_*o[1],z=C-E,O=1-z;for(let W=0;W<h;W++){let G=W*y,H=Math.floor(G),J=Math.min(Math.ceil(G),d-1),K=G-H,ne=1-K,Q=$+H*o[2],se=$+J*o[2],Z=S+H*o[2],le=S+J*o[2],oe=O*ne,xe=O*K,fe=z*ne,Ne=z*K;for(let Te=0;Te<p;Te++){let De=x[v++];m[Q+Te]+=De*oe,m[se+Te]+=De*xe,m[Z+Te]+=De*fe,m[le+Te]+=De*Ne}}}}return n.makeTensorInfo([u,d,l,p],"float32",m)}var WP={kernelName:bc,backendName:"cpu",kernelFunc:LP};function 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NL={kernelName:ll,backendName:"cpu",kernelFunc:SL},TL=rt(si,e=>Math.sqrt(e)),CL={kernelName:si,backendName:"cpu",kernelFunc:TL},EL={kernelName:Gu,backendName:"cpu",kernelFunc:({inputs:e,backend:t})=>{let{x:n}=e,a=t;we(n,"square");let r=a.data.get(n.dataId).values,s=new Float32Array(r.length);for(let i=0;i<r.length;++i){let o=r[i];s[i]=o*o}return{dataId:a.write(s,n.shape,n.dtype),shape:n.shape,dtype:n.dtype}}},RL=rt(Pr,(e,t)=>{let n=t;return isNaN(e)?NaN:e>0?1:n.alpha}),ML={kernelName:Pr,backendName:"cpu",kernelFunc:RL};function FL(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{begin:s,end:i,strides:o,beginMask:u,endMask:l,ellipsisMask:d,newAxisMask:p,shrinkAxisMask:c}=a;we(r,"stridedSlice");let{nonStrided:h,$begin:m,$strides:f,size:A,newShape:g,outShape:y}=hn.sliceInfo(r.shape,s,i,o,u,l,d,p,c),x=At({inputs:{x:r},backend:n,attrs:{shape:g}}),v;if(h){let 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UL(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{reps:s}=a;we(r,"tile");let i=j7(n.bufferSync(r),s);return n.makeTensorInfo(i.shape,i.dtype,i.values)}var HL={kernelName:_r,backendName:"cpu",kernelFunc:UL};function GL(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{k:s,sorted:i}=a;we(r,"topk");let o=n.data.get(r.dataId).values,[u,l]=U7(o,r.shape,r.dtype,s,i);return[n.makeTensorInfo(u.shape,u.dtype,u.values),n.makeTensorInfo(l.shape,l.dtype,l.values)]}var qL={kernelName:dl,backendName:"cpu",kernelFunc:GL};function XL(e){let{inputs:t,attrs:n,backend:a}=e,{image:r,transforms:s}=t,{interpolation:i,fillMode:o,fillValue:u,outputShape:l}=n,[d,p,c,h]=r.shape,[m,f]=l!=null?l:[p,c],A=[d,m,f,h],g=k.computeStrides(r.shape),y=g[0],x=g[1],v=g[2],b=k.getTypedArrayFromDType(r.dtype,k.sizeFromShape(A));b.fill(u);let w=a.data.get(r.dataId).values,N=a.data.get(s.dataId).values;for(let C=0;C<d;++C){let E=s.shape[0]===1?N:N.subarray(C*8,C*8+8);for(let _=0;_<m;++_)for(let $=0;$<f;++$)for(let S=0;S<h;++S){let 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Error(`WEBGL_FLUSH_THRESHOLD must be -1 (indicating never manual flush) or at least 0, but got ${e}.`)});Me.registerFlag("CPU_HANDOFF_SIZE_THRESHOLD",()=>128);function gn(){let e,t,n,a,r,s,i,o,u,l;return te().getNumber("WEBGL_VERSION")===2?(e="#version 300 es",t="in",n="out",a="in",r="texture",s="outputColor",i="out vec4 outputColor;",o=`
      bool isnan_custom(float val) {
        return (val > 0.0 || val < 0.0) ? false : val != 0.0;
      }

      bvec4 isnan_custom(vec4 val) {
        return bvec4(isnan_custom(val.x),
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      #define isnan(value) isnan_custom(value)
    `,u="",l=`
      #define round(value) newRound(value)
      int newRound(float value) {
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      ivec4 newRound(vec4 value) {
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      }
    `):(e="",t="attribute",n="varying",a="varying",r="texture2D",s="gl_FragColor",i="",o=`
      #define isnan(value) isnan_custom(value)
      bool isnan_custom(float val) {
        return (val > 0. || val < 1. || val == 0.) ? false : true;
      }
      bvec4 isnan_custom(vec4 val) {
        return bvec4(isnan(val.x), isnan(val.y), isnan(val.z), isnan(val.w));
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      }
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      int round(float value) {
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      }

      ivec4 round(vec4 value) {
        return ivec4(floor(value + vec4(0.5)));
      }
    `),{version:e,attribute:t,varyingVs:n,varyingFs:a,texture2D:r,output:s,defineOutput:i,defineSpecialNaN:o,defineSpecialInf:u,defineRound:l}}function Pi(e,t,n="index"){let a=k.computeStrides(t);return a.map((r,s)=>{let i=`int ${e[s]} = ${n} / ${r}`,o=s===a.length-1?`int ${e[s+1]} = ${n} - ${e[s]} * ${r}`:`index -= ${e[s]} * ${r}`;return`${i}; ${o};`}).join("")}function LA(e){let t=k.computeStrides(e).map(n=>n.toString());return`
  int getFlatIndex(ivec3 coords) {
    return coords.x * ${t[0]} + coords.y * ${t[1]} + coords.z;
  }
`}var Pv=`
  const float FLOAT_MAX = 1.70141184e38;
  const float FLOAT_MIN = 1.17549435e-38;

  lowp vec4 encode_float(highp float v) {
    if (isnan(v)) {
      return vec4(255, 255, 255, 255);
    }

    highp float av = abs(v);

    if(av < FLOAT_MIN) {
      return vec4(0.0, 0.0, 0.0, 0.0);
    } else if(v > FLOAT_MAX) {
      return vec4(0.0, 0.0, 128.0, 127.0) / 255.0;
    } else if(v < -FLOAT_MAX) {
      return vec4(0.0, 0.0,  128.0, 255.0) / 255.0;
    }

    highp vec4 c = vec4(0,0,0,0);

    highp float e = floor(log2(av));
    highp float m = exp2(fract(log2(av))) - 1.0;

    c[2] = floor(128.0 * m);
    m -= c[2] / 128.0;
    c[1] = floor(32768.0 * m);
    m -= c[1] / 32768.0;
    c[0] = floor(8388608.0 * m);

    highp float ebias = e + 127.0;
    c[3] = floor(ebias / 2.0);
    ebias -= c[3] * 2.0;
    c[2] += floor(ebias) * 128.0;

    c[3] += 128.0 * step(0.0, -v);

    return c / 255.0;
  }
`,IW=class{constructor(e){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=Td.DENSE;let t=Ed(e),n=gn();this.outputShape=e,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        ${Pi(["r","c","d"],e)}
        return ivec3(r, c, d);
      }

      void main() {
        ivec2 resTexRC = ivec2(resultUV.yx *
          vec2(${t[0]}, ${t[1]}));
        int index = 4 * (resTexRC.x * ${t[1]} + resTexRC.y);

        vec4 result = vec4(0.);

        for (int i=0; i<4; i++) {
          int flatIndex = index + i;
          ivec3 rc = outCoordsFromFlatIndex(flatIndex);
          result[i] = getA(rc.x, rc.y, rc.z);
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        ${n.output} = result;
      }
    `}},SW=class{constructor(e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=Td.DENSE;let t=Ed(e),n=gn();this.outputShape=e,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        ${Pi(["r","c","d"],e)}
        return ivec3(r, c, d);
      }

      void main() {
        ivec2 resTexRC = ivec2(resultUV.yx *
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        int index = 4 * (resTexRC.x * ${t[1]} + resTexRC.y);

        vec4 result = vec4(0.);

        for (int i=0; i<4; i++) {
          int flatIndex = index + i;
          ivec3 rc = outCoordsFromFlatIndex(flatIndex);
          result[i] = getChannel(getA(rc.x, rc.y, rc.z), vec2(rc.y, rc.z));
        }

        ${n.output} = result;
      }
    `}},NW=class{constructor(e){this.variableNames=["A"],this.outTexUsage=da.DOWNLOAD;let t=gn();this.outputShape=e,this.userCode=`
      ${Pv}

      void main() {
        float x = getAAtOutCoords();
        ${t.output} = encode_float(x);
      }
    `}},TW=class{constructor(e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=da.DOWNLOAD;let t=gn();this.outputShape=e,this.userCode=`
      ${Pv}

      void main() {
        ivec3 coords = getOutputCoords();
        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));
        ${t.output} = encode_float(x);
      }
    `}},CW=class{constructor(e,t,n=!1){this.variableNames=["A"];let a=gn(),[r,s]=t;this.outputShape=e;let i="result";n&&(i="floor(result * 255. + 0.5)"),this.userCode=`
      ${LA(e)}

      void main() {
        ivec3 coords = getOutputCoords();

        int flatIndex = getFlatIndex(coords);
        int offset = imod(flatIndex, 4);

        flatIndex = idiv(flatIndex, 4, 1.);

        int r = flatIndex / ${s};
        int c = imod(flatIndex, ${s});
        vec2 uv = (vec2(c, r) + halfCR) / vec2(${s}.0, ${r}.0);
        vec4 values = ${a.texture2D}(A, uv);

        float result;

        if(offset == 0) {
          result = values[0];
        } else if(offset == 1) {
          result = values[1];
        } else if(offset == 2) {
          result = values[2];
        } else {
          result = values[3];
        }

        ${a.output} = vec4(${i}, 0., 0., 0.);
      }
    `}},EW=class{constructor(e,t,n=!1){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;let a=gn(),[r,s]=t;this.outputShape=e;let i="",o="result";n&&(o="floor(result * 255. + 0.5)");for(let u=0;u<=1;u++)for(let l=0;l<=1;l++){let d=u*2+l;i+=`
          localCoords = coords;
          if(localCoords[2] + ${l} < ${e[2]}) {
            localCoords[2] += ${l};
            if(localCoords[1] + ${u} < ${e[1]}) {
              localCoords[1] += ${u};

              flatIndex = getFlatIndex(localCoords);
              offset = imod(flatIndex, 4);

              flatIndex = idiv(flatIndex, 4, 1.);

              r = flatIndex / ${s};
              c = imod(flatIndex, ${s});
              uv = (vec2(c, r) + halfCR) / vec2(${s}.0, ${r}.0);
              values = ${a.texture2D}(A, uv);

              if(offset == 0) {
                result[${d}] = values[0];
              } else if(offset == 1) {
                result[${d}] = values[1];
              } else if(offset == 2) {
                result[${d}] = values[2];
              } else {
                result[${d}] = values[3];
              }
            }
          }
        `}this.userCode=`
      ${LA(e)}

      void main() {
        ivec3 coords = getOutputCoords();

        vec4 result = vec4(0.);
        int flatIndex, r, c, offset;
        ivec3 localCoords;
        vec2 uv;
        vec4 values;

        ${i}

        ${a.output} = ${o};
      }
    `}},Lv={};Fe(Lv,{bindVertexProgramAttributeStreams:()=>Xv,createBufferFromOutputTexture:()=>Yv,createFloat16MatrixTexture:()=>Uv,createFloat16PackedMatrixTexture:()=>qv,createFloat32MatrixTexture:()=>jv,createIndexBuffer:()=>Vv,createPackedMatrixTexture:()=>Gv,createUnsignedBytesMatrixTexture:()=>Hv,createVertexBuffer:()=>Bv,createVertexShader:()=>Wv,downloadByteEncodedFloatMatrixFromOutputTexture:()=>Qv,downloadFloat32MatrixFromBuffer:()=>Jv,downloadMatrixFromPackedOutputTexture:()=>tw,downloadPackedMatrixFromBuffer:()=>ew,getInternalFormatForFloat16MatrixTexture:()=>BA,getInternalFormatForFloat16PackedMatrixTexture:()=>UA,getInternalFormatForFloat32MatrixTexture:()=>WA,getInternalFormatForPackedMatrixTexture:()=>jA,getInternalFormatForUnsignedBytesMatrixTexture:()=>VA,uploadDenseMatrixToTexture:()=>Kv,uploadPixelDataToTexture:()=>Zv});function Wv(e){let t=gn(),n=`${t.version}
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    ${t.attribute} vec3 clipSpacePos;
    ${t.attribute} vec2 uv;
    ${t.varyingVs} vec2 resultUV;

    void main() {
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      resultUV = uv;
    }`;return Av(e,n)}function Bv(e){let t=new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]);return bv(e,t)}function Vv(e){let t=new Uint16Array([0,1,2,2,1,3]);return vv(e,t)}function $d(e,t,n,a,r,s){kv(t,n);let i=wv(e),o=e.TEXTURE_2D;return be(e,()=>e.bindTexture(o,i)),be(e,()=>e.texParameteri(o,e.TEXTURE_WRAP_S,e.CLAMP_TO_EDGE)),be(e,()=>e.texParameteri(o,e.TEXTURE_WRAP_T,e.CLAMP_TO_EDGE)),be(e,()=>e.texParameteri(o,e.TEXTURE_MIN_FILTER,e.NEAREST)),be(e,()=>e.texParameteri(o,e.TEXTURE_MAG_FILTER,e.NEAREST)),be(e,()=>e.texImage2D(o,0,a,t,n,0,r,s,null)),be(e,()=>e.bindTexture(e.TEXTURE_2D,null)),i}function WA(e){return e.internalFormatFloat}function jv(e,t,n,a){let[r,s]=Cd(t,n);return $d(e,r,s,WA(a),a.textureFormatFloat,e.FLOAT)}function BA(e){return e.internalFormatHalfFloat}function Uv(e,t,n,a){let[r,s]=Cd(t,n);return $d(e,r,s,BA(a),a.textureFormatFloat,a.textureTypeHalfFloat)}function VA(e){return e.downloadTextureFormat}function Hv(e,t,n,a){let[r,s]=Cd(t,n);return $d(e,r,s,VA(a),e.RGBA,e.UNSIGNED_BYTE)}function jA(e){return e.internalFormatPackedFloat}function Gv(e,t,n,a){let[r,s]=Bl(t,n);return $d(e,r,s,jA(a),e.RGBA,e.FLOAT)}function UA(e){return e.internalFormatPackedHalfFloat}function qv(e,t,n,a){let[r,s]=Bl(t,n);return $d(e,r,s,UA(a),e.RGBA,a.textureTypeHalfFloat)}function Xv(e,t,n){let a=0,r=3*4,s=3*4+2*4;return be(e,()=>e.bindBuffer(e.ARRAY_BUFFER,n)),OA(e,t,"clipSpacePos",n,3,s,a)&&OA(e,t,"uv",n,2,s,r)}function Kv(e,t,n,a,r,s){be(e,()=>e.bindTexture(e.TEXTURE_2D,t));let i,o,u;r instanceof Uint8Array?(i=new Uint8Array(n*a*4),o=e.UNSIGNED_BYTE,u=e.RGBA):(i=new Float32Array(n*a*4),o=e.FLOAT,u=s.internalFormatPackedFloat),i.set(r),be(e,()=>e.texImage2D(e.TEXTURE_2D,0,u,n,a,0,e.RGBA,o,i)),be(e,()=>e.bindTexture(e.TEXTURE_2D,null))}function Zv(e,t,n){be(e,()=>e.bindTexture(e.TEXTURE_2D,t)),n.data instanceof Uint8Array?be(e,()=>e.texImage2D(e.TEXTURE_2D,0,e.RGBA,n.width,n.height,0,e.RGBA,e.UNSIGNED_BYTE,n.data)):be(e,()=>e.texImage2D(e.TEXTURE_2D,0,e.RGBA,e.RGBA,e.UNSIGNED_BYTE,n)),be(e,()=>e.bindTexture(e.TEXTURE_2D,null))}function Yv(e,t,n,a){let r=e.createBuffer();be(e,()=>e.bindBuffer(e.PIXEL_PACK_BUFFER,r));let s=4*4*t*n;return be(e,()=>e.bufferData(e.PIXEL_PACK_BUFFER,s,e.STREAM_READ)),be(e,()=>e.readPixels(0,0,n,t,e.RGBA,e.FLOAT,0)),be(e,()=>e.bindBuffer(e.PIXEL_PACK_BUFFER,null)),r}function Jv(e,t,n){let a=e,r=new Float32Array(n);return a.bindBuffer(a.PIXEL_PACK_BUFFER,t),a.getBufferSubData(a.PIXEL_PACK_BUFFER,0,r),a.bindBuffer(a.PIXEL_PACK_BUFFER,null),r}function Qv(e,t,n,a){let[r,s]=Cd(t,n),i=4,o=new Uint8Array(pW(t*n,i));return be(e,()=>e.readPixels(0,0,r,s,a.downloadTextureFormat,e.UNSIGNED_BYTE,o)),new Float32Array(o.buffer)}function ew(e,t,n,a,r,s,i,o){let u=e,l=new Float32Array(cW(s,i));return u.bindBuffer(u.PIXEL_PACK_BUFFER,t),u.getBufferSubData(u.PIXEL_PACK_BUFFER,0,l),u.bindBuffer(u.PIXEL_PACK_BUFFER,null),l}function tw(e,t,n){let a=new Float32Array(t*n*4);return be(e,()=>e.readPixels(0,0,n,t,e.RGBA,e.FLOAT,a)),a}var Vh=class{constructor(e){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];let t=te().getNumber("WEBGL_VERSION");e!=null?(this.gl=e,Oh(t,e)):this.gl=Ja(t);let n="WEBGL_color_buffer_float",a="EXT_color_buffer_half_float";if(te().getNumber("WEBGL_VERSION")===1){let r="OES_texture_float",s="OES_texture_half_float";if(this.textureFloatExtension=Rd(this.gl,r),pa(this.gl,s))this.textureHalfFloatExtension=Rd(this.gl,s);else if(te().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support half float textures, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.");if(this.colorBufferFloatExtension=this.gl.getExtension(n),pa(this.gl,a))this.colorBufferHalfFloatExtension=Rd(this.gl,a);else if(te().get("WEBGL_FORCE_F16_TEXTURES"))throw new Error("GL context does not support color renderable half floats, yet the environment flag WEBGL_FORCE_F16_TEXTURES is set to true.")}else if(n="EXT_color_buffer_float",pa(this.gl,n))this.colorBufferFloatExtension=this.gl.getExtension(n);else if(pa(this.gl,a))this.colorBufferHalfFloatExtension=this.gl.getExtension(a);else throw new Error("GL context does not support color renderable floats");this.vertexBuffer=Bv(this.gl),this.indexBuffer=Vv(this.gl),this.framebuffer=Iv(this.gl),this.textureConfig=DA(this.gl,this.textureHalfFloatExtension)}get debug(){return te().getBool("DEBUG")}dispose(){if(this.disposed)return;this.program!=null&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. 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be(t,()=>t.attachShader(a,this.vertexShader)),be(t,()=>t.attachShader(a,n)),xv(t,a),this.debug&&zh(t,a),this.vertexAttrsAreBound||(this.setProgram(a),this.vertexAttrsAreBound=Xv(t,this.program,this.vertexBuffer)),a}deleteProgram(e){this.throwIfDisposed(),e===this.program&&(this.program=null),e!=null&&be(this.gl,()=>this.gl.deleteProgram(e))}setProgram(e){this.throwIfDisposed(),this.program=e,this.program!=null&&this.debug&&zh(this.gl,this.program),be(this.gl,()=>this.gl.useProgram(e))}getUniformLocation(e,t,n=!0){return this.throwIfDisposed(),n?Nv(this.gl,e,t):Tv(this.gl,e,t)}getAttributeLocation(e,t){return this.throwIfDisposed(),be(this.gl,()=>this.gl.getAttribLocation(e,t))}getUniformLocationNoThrow(e,t){return this.throwIfDisposed(),this.gl.getUniformLocation(e,t)}setInputMatrixTexture(e,t,n){this.throwIfDisposed(),this.throwIfNoProgram(),Cv(this.gl,e,t,n)}setOutputMatrixTexture(e,t,n){this.setOutputMatrixTextureDriver(e,n,t)}setOutputPackedMatrixTexture(e,t,n){this.throwIfDisposed();let[a,r]=Bl(t,n);this.setOutputMatrixTextureDriver(e,a,r)}setOutputMatrixWriteRegion(e,t,n,a){this.setOutputMatrixWriteRegionDriver(n,e,a,t)}setOutputPackedMatrixWriteRegion(e,t,n,a){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")}debugValidate(){this.program!=null&&zh(this.gl,this.program),Md(this.gl)}executeProgram(){this.throwIfDisposed(),this.throwIfNoProgram();let e=this.gl;this.debug&&this.debugValidate(),be(e,()=>e.drawElements(e.TRIANGLES,6,e.UNSIGNED_SHORT,0))}blockUntilAllProgramsCompleted(){this.throwIfDisposed(),be(this.gl,()=>this.gl.finish())}getQueryTimerExtension(){return this.disjointQueryTimerExtension==null&&(this.disjointQueryTimerExtension=Rd(this.gl,te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension}getQueryTimerExtensionWebGL2(){return this.getQueryTimerExtension()}getQueryTimerExtensionWebGL1(){return this.getQueryTimerExtension()}beginQuery(){if(te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){let n=this.gl,a=this.getQueryTimerExtensionWebGL2(),r=n.createQuery();return n.beginQuery(a.TIME_ELAPSED_EXT,r),r}let e=this.getQueryTimerExtensionWebGL1(),t=e.createQueryEXT();return e.beginQueryEXT(e.TIME_ELAPSED_EXT,t),t}endQuery(){if(te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){let t=this.gl,n=this.getQueryTimerExtensionWebGL2();t.endQuery(n.TIME_ELAPSED_EXT);return}let e=this.getQueryTimerExtensionWebGL1();e.endQueryEXT(e.TIME_ELAPSED_EXT)}async waitForQueryAndGetTime(e){return await k.repeatedTry(()=>this.disposed||this.isQueryAvailable(e,te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))),this.getQueryTime(e,te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}getQueryTime(e,t){if(t===0)return null;if(t===2){let n=this.gl;return n.getQueryParameter(e,n.QUERY_RESULT)/1e6}else{let n=this.getQueryTimerExtensionWebGL1();return n.getQueryObjectEXT(e,n.QUERY_RESULT_EXT)/1e6}}isQueryAvailable(e,t){if(t===0)return!0;if(t===2){let n=this.gl,a=this.getQueryTimerExtensionWebGL2(),r=n.getQueryParameter(e,n.QUERY_RESULT_AVAILABLE);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(a.GPU_DISJOINT_EXT)),r&&!this.disjoint}else{let n=this.getQueryTimerExtensionWebGL1(),a=n.getQueryObjectEXT(e,n.QUERY_RESULT_AVAILABLE_EXT);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(n.GPU_DISJOINT_EXT)),a&&!this.disjoint}}pollFence(e){return new Promise(t=>{this.addItemToPoll(()=>e.isFencePassed(),()=>t())})}pollItems(){let e=RW(this.itemsToPoll.map(t=>t.isDoneFn));for(let t=0;t<=e;++t){let{resolveFn:n}=this.itemsToPoll[t];n()}this.itemsToPoll=this.itemsToPoll.slice(e+1)}addItemToPoll(e,t){this.itemsToPoll.push({isDoneFn:e,resolveFn:t}),!(this.itemsToPoll.length>1)&&k.repeatedTry(()=>(this.pollItems(),this.itemsToPoll.length===0))}bindTextureToFrameBuffer(e){this.throwIfDisposed(),_h(this.gl,e,this.framebuffer),this.debug&&Md(this.gl)}unbindTextureToFrameBuffer(){this.outputTexture!=null?(_h(this.gl,this.outputTexture,this.framebuffer),this.debug&&Md(this.gl)):zA(this.gl,this.framebuffer)}downloadMatrixDriver(e,t){this.bindTextureToFrameBuffer(e);let n=t();return this.unbindTextureToFrameBuffer(),n}setOutputMatrixTextureDriver(e,t,n){this.throwIfDisposed();let a=this.gl;_h(a,e,this.framebuffer),this.debug&&Md(a),this.outputTexture=e,be(a,()=>a.viewport(0,0,t,n)),be(a,()=>a.scissor(0,0,t,n))}setOutputMatrixWriteRegionDriver(e,t,n,a){this.throwIfDisposed(),be(this.gl,()=>this.gl.scissor(e,t,n,a))}throwIfDisposed(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")}throwIfNoProgram(){if(this.program==null)throw new Error("No GPU program is currently set.")}};function RW(e){let t=0;for(;t<e.length&&e[t]();++t);return t-1}var{getBroadcastDims:nw}=F;function MW(e,t,n,a){let r=[];e.forEach(h=>{let m=k.sizeFromShape(h.shapeInfo.logicalShape);h.shapeInfo.isUniform?r.push(`uniform float ${h.name}${m>1?`[${m}]`:""};`):(r.push(`uniform sampler2D ${h.name};`),r.push(`uniform int offset${h.name};`))});let s=r.join(`
`),i=e.map(h=>FW(h,t,a)).join(`
`),o=t.texShape,u=gn(),l=OW(u),d,p,c=PW(u);return t.isPacked?(d=$W(t.logicalShape,o),p=_W(u)):(d=DW(t.logicalShape,o),p=zW(u)),a&&(c+=VW),[c,l,p,s,d,i,n].join(`
`)}function jl(e){let t=e.shapeInfo.logicalShape;switch(t.length){case 0:return eB(e);case 1:return nB(e);case 2:return rB(e);case 3:return iB(e);case 4:return lB(e);case 5:return uB(e);case 6:return dB(e);default:throw new Error(`${t.length}-D input sampling is not yet supported`)}}function aw(e){switch(e.shapeInfo.logicalShape.length){case 0:return QW(e);case 1:return tB(e);case 2:return aB(e);case 3:return sB(e);default:return oB(e)}}function FW(e,t,n=!1){let a="";n?a+=aw(e):a+=jl(e);let r=e.shapeInfo.logicalShape,s=t.logicalShape;return r.length<=s.length&&(n?a+=pB(e,t):a+=cB(e,t)),a}function $W(e,t){switch(e.length){case 0:return rw();case 1:return jW(e,t);case 2:return YW(e,t);case 3:return HW(e,t);default:return qW(e,t)}}function DW(e,t){switch(e.length){case 0:return rw();case 1:return UW(e,t);case 2:return JW(e,t);case 3:return GW(e,t);case 4:return XW(e,t);case 5:return KW(e,t);case 6:return ZW(e,t);default:throw new Error(`${e.length}-D output sampling is not yet supported`)}}function OW(e){return`
    float sampleTexture(sampler2D textureSampler, vec2 uv) {
      return ${e.texture2D}(textureSampler, uv).r;
    }
  `}function zW(e){return`
    void setOutput(float val) {
      ${e.output} = vec4(val, 0, 0, 0);
    }
  `}function _W(e){return`
    void setOutput(vec4 val) {
      ${e.output} = val;
    }
  `}function PW(e){return`${e.version}
    precision highp float;
    precision highp int;
    precision highp sampler2D;
    ${e.varyingFs} vec2 resultUV;
    ${e.defineOutput}
    const vec2 halfCR = vec2(0.5, 0.5);

    struct ivec5
    {
      int x;
      int y;
      int z;
      int w;
      int u;
    };

    struct ivec6
    {
      int x;
      int y;
      int z;
      int w;
      int u;
      int v;
    };

    uniform float NAN;
    ${e.defineSpecialNaN}
    ${e.defineSpecialInf}
    ${e.defineRound}

    int imod(int x, int y) {
      return x - y * (x / y);
    }

    int idiv(int a, int b, float sign) {
      int res = a / b;
      int mod = imod(a, b);
      if (sign < 0. && mod != 0) {
        res -= 1;
      }
      return res;
    }

    //Based on the work of Dave Hoskins
    //https://www.shadertoy.com/view/4djSRW
    #define HASHSCALE1 443.8975
    float random(float seed){
      vec2 p = resultUV * seed;
      vec3 p3  = fract(vec3(p.xyx) * HASHSCALE1);
      p3 += dot(p3, p3.yzx + 19.19);
      return fract((p3.x + p3.y) * p3.z);
    }

    ${LW}
    ${WW}
    ${BW}
  `}var LW=`
vec2 uvFromFlat(int texNumR, int texNumC, int index) {
  int texR = index / texNumC;
  int texC = index - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
vec2 packedUVfrom1D(int texNumR, int texNumC, int index) {
  int texelIndex = index / 2;
  int texR = texelIndex / texNumC;
  int texC = texelIndex - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,WW=`
vec2 packedUVfrom2D(int texelsInLogicalRow, int texNumR,
  int texNumC, int row, int col) {
  int texelIndex = (row / 2) * texelsInLogicalRow + (col / 2);
  int texR = texelIndex / texNumC;
  int texC = texelIndex - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,BW=`
vec2 packedUVfrom3D(int texNumR, int texNumC,
    int texelsInBatch, int texelsInLogicalRow, int b,
    int row, int col) {
  int index = b * texelsInBatch + (row / 2) * texelsInLogicalRow + (col / 2);
  int texR = index / texNumC;
  int texC = index - texR * texNumC;
  return (vec2(texC, texR) + halfCR) / vec2(texNumC, texNumR);
}
`,VW=`
  float getChannel(vec4 frag, vec2 innerDims) {
    vec2 modCoord = mod(innerDims, 2.);
    return modCoord.x == 0. ?
      (modCoord.y == 0. ? frag.r : frag.g) :
      (modCoord.y == 0. ? frag.b : frag.a);
  }
  float getChannel(vec4 frag, int dim) {
    float modCoord = mod(float(dim), 2.);
    return modCoord == 0. ? frag.r : frag.g;
  }
`;function rw(){return`
    int getOutputCoords() {
      return 0;
    }
  `}function jW(e,t){let n=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)];return n[0]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.x * ${n[1]}.0);
      }
    `:n[1]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.y * ${n[0]}.0);
      }
    `:`
    int getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${n[0]}, ${n[1]}));
      return 2 * (resTexRC.x * ${n[1]} + resTexRC.y);
    }
  `}function UW(e,t){return t[0]===1?`
      int getOutputCoords() {
        return int(resultUV.x * ${t[1]}.0);
      }
    `:t[1]===1?`
      int getOutputCoords() {
        return int(resultUV.y * ${t[0]}.0);
      }
    `:`
    int getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${t[0]}, ${t[1]}));
      return resTexRC.x * ${t[1]} + resTexRC.y;
    }
  `}function HW(e,t){let n=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)],a=Math.ceil(e[2]/2),r=a*Math.ceil(e[1]/2);return`
    ivec3 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${n[0]}, ${n[1]}));
      int index = resTexRC.x * ${n[1]} + resTexRC.y;

      int b = index / ${r};
      index -= b * ${r};

      int r = 2 * (index / ${a});
      int c = imod(index, ${a}) * 2;

      return ivec3(b, r, c);
    }
  `}function GW(e,t){let n=Pi(["r","c","d"],e);return`
    ivec3 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${t[0]}, ${t[1]}));
      int index = resTexRC.x * ${t[1]} + resTexRC.y;
      ${n}
      return ivec3(r, c, d);
    }
  `}function qW(e,t){let n=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)],a=Math.ceil(e[e.length-1]/2),r=a*Math.ceil(e[e.length-2]/2),s=r,i="",o="b, r, c";for(let u=2;u<e.length-1;u++)s*=e[e.length-u-1],i=`
      int b${u} = index / ${s};
      index -= b${u} * ${s};
    `+i,o=`b${u}, `+o;return`
    ivec${e.length} getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${n[0]}, ${n[1]}));
      int index = resTexRC.x * ${n[1]} + resTexRC.y;

      ${i}

      int b = index / ${r};
      index -= b * ${r};

      int r = 2 * (index / ${a});
      int c = imod(index, ${a}) * 2;

      return ivec${e.length}(${o});
    }
  `}function XW(e,t){let n=Pi(["r","c","d","d2"],e);return`
    ivec4 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
        vec2(${t[0]}, ${t[1]}));
      int index = resTexRC.x * ${t[1]} + resTexRC.y;
      ${n}
      return ivec4(r, c, d, d2);
    }
  `}function KW(e,t){let n=Pi(["r","c","d","d2","d3"],e);return`
    ivec5 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx * vec2(${t[0]},
                             ${t[1]}));

      int index = resTexRC.x * ${t[1]} + resTexRC.y;

      ${n}

      ivec5 outShape = ivec5(r, c, d, d2, d3);
      return outShape;
    }
  `}function ZW(e,t){let n=Pi(["r","c","d","d2","d3","d4"],e);return`
    ivec6 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
        vec2(${t[0]}, ${t[1]}));
      int index = resTexRC.x * ${t[1]} + resTexRC.y;

      ${n}

      ivec6 result = ivec6(r, c, d, d2, d3, d4);
      return result;
    }
  `}function YW(e,t){let n=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)];if(k.arraysEqual(e,t))return`
      ivec2 getOutputCoords() {
        return 2 * ivec2(resultUV.yx * vec2(${n[0]}, ${n[1]}));
      }
    `;let a=Math.ceil(e[1]/2);return`
    ivec2 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${n[0]}, ${n[1]}));

      int index = resTexRC.x * ${n[1]} + resTexRC.y;
      int r = 2 * (index / ${a});
      int c = imod(index, ${a}) * 2;

      return ivec2(r, c);
    }
  `}function JW(e,t){return k.arraysEqual(e,t)?`
      ivec2 getOutputCoords() {
        return ivec2(resultUV.yx * vec2(${t[0]}, ${t[1]}));
      }
    `:e[1]===1?`
      ivec2 getOutputCoords() {
        ivec2 resTexRC = ivec2(resultUV.yx *
                               vec2(${t[0]}, ${t[1]}));
        int index = resTexRC.x * ${t[1]} + resTexRC.y;
        return ivec2(index, 0);
      }
    `:e[0]===1?`
      ivec2 getOutputCoords() {
        ivec2 resTexRC = ivec2(resultUV.yx *
                               vec2(${t[0]}, ${t[1]}));
        int index = resTexRC.x * ${t[1]} + resTexRC.y;
        return ivec2(0, index);
      }
    `:`
    ivec2 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(${t[0]}, ${t[1]}));
      int index = resTexRC.x * ${t[1]} + resTexRC.y;
      int r = index / ${e[1]};
      int c = index - r * ${e[1]};
      return ivec2(r, c);
    }
  `}function Li(e){return`offset${e}`}function QW(e){let t=e.name,n="get"+t.charAt(0).toUpperCase()+t.slice(1),a=gn();return`
    vec4 ${n}() {
      return ${a.texture2D}(${t}, halfCR);
    }
  `}function eB(e){let t=e.name,n="get"+t.charAt(0).toUpperCase()+t.slice(1);if(e.shapeInfo.isUniform)return`float ${n}() {return ${t};}`;let[a,r]=e.shapeInfo.texShape;if(a===1&&r===1)return`
      float ${n}() {
        return sampleTexture(${t}, halfCR);
      }
    `;let[s,i]=e.shapeInfo.texShape,o=Li(t);return`
    float ${n}() {
      vec2 uv = uvFromFlat(${s}, ${i}, ${o});
      return sampleTexture(${t}, uv);
    }
  `}function tB(e){let t=e.name,n="get"+t.charAt(0).toUpperCase()+t.slice(1),a=e.shapeInfo.texShape,r=[Math.ceil(a[0]/2),Math.ceil(a[1]/2)],s=gn();return`
    vec4 ${n}(int index) {
      vec2 uv = packedUVfrom1D(
        ${r[0]}, ${r[1]}, index);
      return ${s.texture2D}(${t}, uv);
    }
  `}function nB(e){let t=e.name,n="get"+t.charAt(0).toUpperCase()+t.slice(1);if(e.shapeInfo.isUniform)return`
      float ${n}(int index) {
        ${Ul(e)}
      }
    `;let a=e.shapeInfo.texShape,r=a[0],s=a[1];if(s===1&&r===1)return`
      float ${n}(int index) {
        return sampleTexture(${t}, halfCR);
      }
    `;let i=Li(t);return s===1?`
      float ${n}(int index) {
        vec2 uv = vec2(0.5, (float(index + ${i}) + 0.5) / ${r}.0);
        return sampleTexture(${t}, uv);
      }
    `:r===1?`
      float ${n}(int index) {
        vec2 uv = vec2((float(index + ${i}) + 0.5) / ${s}.0, 0.5);
        return sampleTexture(${t}, uv);
      }
    `:`
    float ${n}(int index) {
      vec2 uv = uvFromFlat(${r}, ${s}, index + ${i});
      return sampleTexture(${t}, uv);
    }
  `}function aB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=e.shapeInfo.texShape,s=r[0],i=r[1],o=gn();if(r!=null&&k.arraysEqual(t,r))return`
      vec4 ${a}(int row, int col) {
        vec2 uv = (vec2(col, row) + halfCR) / vec2(${i}.0, ${s}.0);

        return ${o.texture2D}(${n}, uv);
      }
    `;let u=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],l=Math.ceil(t[1]/2);return`
    vec4 ${a}(int row, int col) {
      vec2 uv = packedUVfrom2D(${l}, ${u[0]}, ${u[1]}, row, col);
      return ${o.texture2D}(${n}, uv);
    }
  `}function rB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=e.shapeInfo.texShape;if(r!=null&&k.arraysEqual(t,r)){let p=r[0],c=r[1];return`
    float ${a}(int row, int col) {
      vec2 uv = (vec2(col, row) + halfCR) / vec2(${c}.0, ${p}.0);
      return sampleTexture(${n}, uv);
    }
  `}let{newShape:s,keptDims:i}=k.squeezeShape(t),o=s;if(o.length<t.length){let p=Hl(e,o),c=["row","col"];return`
      ${jl(p)}
      float ${a}(int row, int col) {
        return ${a}(${Gl(c,i)});
      }
    `}if(e.shapeInfo.isUniform)return`
      float ${a}(int row, int col) {
        int index = round(dot(vec2(row, col), vec2(${t[1]}, 1)));
        ${Ul(e)}
      }
    `;let u=r[0],l=r[1],d=Li(n);return l===1?`
    float ${a}(int row, int col) {
      float index = dot(vec3(row, col, ${d}), vec3(${t[1]}, 1, 1));
      vec2 uv = vec2(0.5, (index + 0.5) / ${u}.0);
      return sampleTexture(${n}, uv);
    }
  `:u===1?`
    float ${a}(int row, int col) {
      float index = dot(vec3(row, col, ${d}), vec3(${t[1]}, 1, 1));
      vec2 uv = vec2((index + 0.5) / ${l}.0, 0.5);
      return sampleTexture(${n}, uv);
    }
  `:`
  float ${a}(int row, int col) {
    // Explicitly use integer operations as dot() only works on floats.
    int index = row * ${t[1]} + col + ${d};
    vec2 uv = uvFromFlat(${u}, ${l}, index);
    return sampleTexture(${n}, uv);
  }
`}function sB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=e.shapeInfo.texShape,s=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)];if(t[0]===1){let p=t.slice(1),c=[1,2],h=Hl(e,p),m=["b","row","col"];return`
        ${aw(h)}
        vec4 ${a}(int b, int row, int col) {
          return ${a}(${Gl(m,c)});
        }
      `}let i=s[0],o=s[1],u=Math.ceil(t[2]/2),l=u*Math.ceil(t[1]/2),d=gn();return`
    vec4 ${a}(int b, int row, int col) {
      vec2 uv = packedUVfrom3D(
        ${i}, ${o}, ${l}, ${u}, b, row, col);
      return ${d.texture2D}(${n}, uv);
    }
  `}function iB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=t[1]*t[2],s=t[2],{newShape:i,keptDims:o}=k.squeezeShape(t),u=i;if(u.length<t.length){let m=Hl(e,u),f=["row","col","depth"];return`
        ${jl(m)}
        float ${a}(int row, int col, int depth) {
          return ${a}(${Gl(f,o)});
        }
      `}if(e.shapeInfo.isUniform)return`
      float ${a}(int row, int col, int depth) {
        int index = round(dot(vec3(row, col, depth),
                          vec3(${r}, ${s}, 1)));
        ${Ul(e)}
      }
    `;let l=e.shapeInfo.texShape,d=l[0],p=l[1],c=e.shapeInfo.flatOffset;if(p===r&&c==null)return`
        float ${a}(int row, int col, int depth) {
          float texR = float(row);
          float texC = dot(vec2(col, depth), vec2(${s}, 1));
          vec2 uv = (vec2(texC, texR) + halfCR) /
                     vec2(${p}.0, ${d}.0);
          return sampleTexture(${n}, uv);
        }
      `;if(p===s&&c==null)return`
    float ${a}(int row, int col, int depth) {
      float texR = dot(vec2(row, col), vec2(${t[1]}, 1));
      float texC = float(depth);
      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(${p}.0, ${d}.0);
      return sampleTexture(${n}, uv);
    }
  `;let h=Li(n);return`
      float ${a}(int row, int col, int depth) {
        // Explicitly use integer operations as dot() only works on floats.
        int index = row * ${r} + col * ${s} + depth + ${h};
        vec2 uv = uvFromFlat(${d}, ${p}, index);
        return sampleTexture(${n}, uv);
      }
  `}function oB(e){let t=e.shapeInfo.logicalShape,n=t.length,a=e.name,r="get"+a.charAt(0).toUpperCase()+a.slice(1),s=e.shapeInfo.texShape,i=[Math.ceil(s[0]/2),Math.ceil(s[1]/2)],o=i[0],u=i[1],l=Math.ceil(t[n-1]/2),d=l*Math.ceil(t[n-2]/2),p="int b, int row, int col",c=`b * ${d} + (row / 2) * ${l} + (col / 2)`;for(let m=2;m<n-1;m++)p=`int b${m}, `+p,d*=t[n-m-1],c=`b${m} * ${d} + `+c;let h=gn();return`
    vec4 ${r}(${p}) {
      int index = ${c};
      int texR = index / ${u};
      int texC = index - texR * ${u};
      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(${u}, ${o});
      return ${h.texture2D}(${a}, uv);
    }
  `}function lB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=t[3],s=t[2]*r,i=t[1]*s,{newShape:o,keptDims:u}=k.squeezeShape(t);if(o.length<t.length){let m=Hl(e,o),f=["row","col","depth","depth2"];return`
      ${jl(m)}
      float ${a}(int row, int col, int depth, int depth2) {
        return ${a}(${Gl(f,u)});
      }
    `}if(e.shapeInfo.isUniform)return`
      float ${a}(int row, int col, int depth, int depth2) {
        int index = round(dot(vec4(row, col, depth, depth2),
                          vec4(${i}, ${s}, ${r}, 1)));
        ${Ul(e)}
      }
    `;let l=e.shapeInfo.flatOffset,d=e.shapeInfo.texShape,p=d[0],c=d[1];if(c===i&&l==null)return`
      float ${a}(int row, int col, int depth, int depth2) {
        float texR = float(row);
        float texC =
            dot(vec3(col, depth, depth2),
                vec3(${s}, ${r}, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(${c}.0, ${p}.0);
        return sampleTexture(${n}, uv);
      }
    `;if(c===r&&l==null)return`
      float ${a}(int row, int col, int depth, int depth2) {
        float texR = dot(vec3(row, col, depth),
                         vec3(${t[1]*t[2]}, ${t[2]}, 1));
        float texC = float(depth2);
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(${c}.0, ${p}.0);
        return sampleTexture(${n}, uv);
      }
    `;let h=Li(n);return`
    float ${a}(int row, int col, int depth, int depth2) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * ${i} + col * ${s} +
          depth * ${r} + depth2;
      vec2 uv = uvFromFlat(${p}, ${c}, index + ${h});
      return sampleTexture(${n}, uv);
    }
  `}function uB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),r=t[4],s=t[3]*r,i=t[2]*s,o=t[1]*i,{newShape:u,keptDims:l}=k.squeezeShape(t);if(u.length<t.length){let f=Hl(e,u),A=["row","col","depth","depth2","depth3"];return`
      ${jl(f)}
      float ${a}(int row, int col, int depth, int depth2, int depth3) {
        return ${a}(${Gl(A,l)});
      }
    `}if(e.shapeInfo.isUniform)return`
      float ${a}(int row, int col, int depth, int depth2, int depth3) {
        float index = dot(
          vec4(row, col, depth, depth2),
          vec4(${o}, ${i}, ${s}, ${r})) +
          depth3;
        ${Ul(e)}
      }
    `;let d=e.shapeInfo.flatOffset,p=e.shapeInfo.texShape,c=p[0],h=p[1];if(h===o&&d==null)return`
      float ${a}(int row, int col, int depth, int depth2, int depth3) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
                         vec4(${i}, ${s}, ${r}, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(${h}.0, ${c}.0);
        return sampleTexture(${n}, uv);
      }
    `;if(h===r&&d==null)return`
      float ${a}(int row, int col, int depth, int depth2, int depth3) {
        float texR = dot(
          vec4(row, col, depth, depth2),
          vec4(${t[1]*t[2]*t[3]},
               ${t[2]*t[3]}, ${t[3]}, 1));
        int texC = depth3;
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(${h}.0, ${c}.0);
        return sampleTexture(${n}, uv);
      }
    `;let m=Li(n);return`
    float ${a}(int row, int col, int depth, int depth2, int depth3) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * ${o} + col * ${i} + depth * ${s} +
          depth2 * ${r} + depth3 + ${m};
      vec2 uv = uvFromFlat(${c}, ${h}, index);
      return sampleTexture(${n}, uv);
    }
  `}function dB(e){let t=e.shapeInfo.logicalShape,n=e.name,a="get"+n.charAt(0).toUpperCase()+n.slice(1),{newShape:r,keptDims:s}=k.squeezeShape(t);if(r.length<t.length){let A=Hl(e,r),g=["row","col","depth","depth2","depth3","depth4"];return`
      ${jl(A)}
      float ${a}(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        return ${a}(${Gl(g,s)});
      }
    `}let i=t[5],o=t[4]*i,u=t[3]*o,l=t[2]*u,d=t[1]*l;if(e.shapeInfo.isUniform)return`
      float ${a}(int row, int col, int depth,
                  int depth2, int depth3, int depth4) {
        int index = round(dot(
          vec4(row, col, depth, depth2),
          vec4(${d}, ${l}, ${u}, ${o})) +
          dot(
            vec2(depth3, depth4),
            vec2(${i}, 1)));
        ${Ul(e)}
      }
    `;let p=e.shapeInfo.flatOffset,c=e.shapeInfo.texShape,h=c[0],m=c[1];if(m===d&&p==null)return`
      float ${a}(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
          vec4(${l}, ${u}, ${o}, ${i})) +
               float(depth4);
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(${m}.0, ${h}.0);
        return sampleTexture(${n}, uv);
      }
    `;if(m===i&&p==null)return`
      float ${a}(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        float texR = dot(vec4(row, col, depth, depth2),
          vec4(${t[1]*t[2]*t[3]*t[4]},
               ${t[2]*t[3]*t[4]},
               ${t[3]*t[4]},
               ${t[4]})) + float(depth3);
        int texC = depth4;
        vec2 uv = (vec2(texC, texR) + halfCR) /
                  vec2(${m}.0, ${h}.0);
        return sampleTexture(${n}, uv);
      }
    `;let f=Li(n);return`
    float ${a}(int row, int col, int depth,
                  int depth2, int depth3, int depth4) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * ${d} + col * ${l} + depth * ${u} +
          depth2 * ${o} + depth3 * ${i} + depth4 + ${f};
      vec2 uv = uvFromFlat(${h}, ${m}, index);
      return sampleTexture(${n}, uv);
    }
  `}function Ul(e){let t=e.name,n=k.sizeFromShape(e.shapeInfo.logicalShape);return n<2?`return ${t};`:`
    for (int i = 0; i < ${n}; i++) {
      if (i == index) {
        return ${t}[i];
      }
    }
  `}function pB(e,t){let n=e.name,a=n.charAt(0).toUpperCase()+n.slice(1),r="get"+a+"AtOutCoords",s=e.shapeInfo.logicalShape.length,i=t.logicalShape.length,o=nw(e.shapeInfo.logicalShape,t.logicalShape),u=ut(i),l=i-s,d,p=["x","y","z","w","u","v"];s===0?d="":i<2&&o.length>=1?d="coords = 0;":d=o.map(A=>`coords.${p[A+l]} = 0;`).join(`
`);let c="";i<2&&s>0?c="coords":c=e.shapeInfo.logicalShape.map((A,g)=>`coords.${p[g+l]}`).join(", ");let h="return outputValue;",m=k.sizeFromShape(e.shapeInfo.logicalShape)===1,f=k.sizeFromShape(t.logicalShape)===1;if(s===1&&!m&&!f)h=`
      return vec4(outputValue.xy, outputValue.xy);
    `;else if(m&&!f)i===1?h=`
        return vec4(outputValue.x, outputValue.x, 0., 0.);
      `:h=`
        return vec4(outputValue.x);
      `;else if(o.length){let A=s-2,g=s-1;o.indexOf(A)>-1&&o.indexOf(g)>-1?h="return vec4(outputValue.x);":o.indexOf(A)>-1?h="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":o.indexOf(g)>-1&&(h="return vec4(outputValue.xx, outputValue.zz);")}return`
    vec4 ${r}() {
      ${u} coords = getOutputCoords();
      ${d}
      vec4 outputValue = get${a}(${c});
      ${h}
    }
  `}function cB(e,t){let n=e.name,a=n.charAt(0).toUpperCase()+n.slice(1),r="get"+a+"AtOutCoords",s=t.texShape,i=e.shapeInfo.texShape,o=e.shapeInfo.logicalShape.length,u=t.logicalShape.length;if(!e.shapeInfo.isUniform&&o===u&&e.shapeInfo.flatOffset==null&&k.arraysEqual(i,s))return`
      float ${r}() {
        return sampleTexture(${n}, resultUV);
      }
    `;let l=ut(u),d=nw(e.shapeInfo.logicalShape,t.logicalShape),p=u-o,c,h=["x","y","z","w","u","v"];o===0?c="":u<2&&d.length>=1?c="coords = 0;":c=d.map(f=>`coords.${h[f+p]} = 0;`).join(`
`);let m="";return u<2&&o>0?m="coords":m=e.shapeInfo.logicalShape.map((f,A)=>`coords.${h[A+p]}`).join(", "),`
    float ${r}() {
      ${l} coords = getOutputCoords();
      ${c}
      return get${a}(${m});
    }
  `}function ut(e){if(e<=1)return"int";if(e===2)return"ivec2";if(e===3)return"ivec3";if(e===4)return"ivec4";if(e===5)return"ivec5";if(e===6)return"ivec6";throw Error(`GPU for rank ${e} is not yet supported`)}function Hl(e,t){let n=JSON.parse(JSON.stringify(e));return n.shapeInfo.logicalShape=t,n}function Gl(e,t){return t.map(n=>e[n]).join(", ")}function hB(e,t,n,a){let r=t.userCode,s=n.map((h,m)=>{let f={logicalShape:h.shape,texShape:h.isUniform?null:h.texData.texShape,isUniform:h.isUniform,isPacked:h.isUniform?!1:h.texData.isPacked,flatOffset:null};return h.texData!=null&&h.texData.slice!=null&&h.texData.slice.flatOffset>0&&(f.flatOffset=h.texData.slice.flatOffset),{name:t.variableNames[m],shapeInfo:f}}),i=s.map(h=>h.shapeInfo),o={logicalShape:a.shape,texShape:a.texData.texShape,isUniform:!1,isPacked:a.texData.isPacked,flatOffset:null},u=MW(s,o,r,t.packedInputs),l=e.createProgram(u),d=null,p=e.getUniformLocation(l,"NAN",!1);te().getNumber("WEBGL_VERSION")===1&&(d=e.getUniformLocation(l,"INFINITY",!1));let c={};for(let h=0;h<t.variableNames.length;h++){let m=t.variableNames[h],f=!1;c[m]=e.getUniformLocation(l,m,f),c[`offset${m}`]=e.getUniformLocation(l,`offset${m}`,f)}return{program:t,source:u,webGLProgram:l,uniformLocations:c,inShapeInfos:i,outShapeInfo:o,infLoc:d,nanLoc:p}}function sw(e,t){if(e.length!==t.length)throw Error(`Binary was compiled with ${e.length} inputs, but was executed with ${t.length} inputs`);e.forEach((n,a)=>{let r=n.logicalShape,s=t[a],i=s.shape;if(!k.arraysEqual(r,i))throw Error(`Binary was compiled with different shapes than the current args. Shapes ${r} and ${i} must match`);if(n.isUniform&&s.isUniform)return;let o=n.texShape,u=s.isUniform?null:s.texData.texShape;if(!k.arraysEqual(o,u))throw Error(`Binary was compiled with different texture shapes than the current args. Shape ${o} and ${u} must match`)})}function fB(e,t,n,a,r){sw(t.inShapeInfos,n),sw([t.outShapeInfo],[a]);let s=a.texData.texture,i=a.texData.texShape;a.texData.isPacked?e.setOutputPackedMatrixTexture(s,i[0],i[1]):e.setOutputMatrixTexture(s,i[0],i[1]),e.setProgram(t.webGLProgram),te().getNumber("WEBGL_VERSION")===1&&t.infLoc!==null&&e.gl.uniform1f(t.infLoc,Infinity),t.nanLoc!==null&&e.gl.uniform1f(t.nanLoc,NaN),n.forEach((o,u)=>{let l=t.program.variableNames[u],d=t.uniformLocations[l],p=t.uniformLocations[`offset${l}`];if(d!=null){if(o.isUniform){if(k.sizeFromShape(o.shape)<2)e.gl.uniform1f(d,o.uniformValues[0]);else{let c=o.uniformValues;c instanceof Float32Array||(c=new Float32Array(c)),e.gl.uniform1fv(d,c)}return}o.texData.slice!=null&&p!=null&&e.gl.uniform1i(p,o.texData.slice.flatOffset),e.setInputMatrixTexture(o.texData.texture,d,u)}}),r!=null&&r(e,t.webGLProgram),e.executeProgram()}function mB(e,t,n){let a="";t.concat(n).forEach(i=>{let o=i.texData!=null&&i.texData.slice!=null&&i.texData.slice.flatOffset>0,u=i.isUniform?"uniform":i.texData.texShape;a+=`${i.shape}_${u}_${o}`});let r=e.userCode,s=e.constructor.name;return s+="_"+a+"_"+r,s}var{addImpl:AB,bincountImpl:iw,bincountReduceImpl:gB,ceilImpl:yB,concatImpl:xB,equalImpl:bB,expImpl:vB,expm1Impl:wB,floorImpl:kB,gatherNdImpl:IB,gatherV2Impl:SB,greaterImpl:NB,greaterEqualImpl:TB,lessImpl:CB,lessEqualImpl:EB,linSpaceImpl:RB,logImpl:MB,maxImpl:FB,maximumImpl:$B,minimumImpl:DB,multiplyImpl:OB,negImpl:zB,notEqualImpl:_B,prodImpl:PB,rangeImpl:LB,rsqrtImpl:WB,simpleAbsImpl:ow,sliceImpl:BB,sparseFillEmptyRowsImpl:VB,sparseReshapeImpl:jB,sparseSegmentReductionImpl:lw,stridedSliceImpl:UB,stringNGramsImpl:HB,stringSplitImpl:GB,stringToHashBucketFastImpl:qB,subImpl:XB,tileImpl:KB,topKImpl:ZB,transposeImpl:HA,uniqueImpl:YB}=yA;function uw(e,t){return["x","y","z","w","u","v"].slice(0,t).map(n=>`${e}.${n}`)}function yn(e,t){return t===1?[e]:uw(e,t)}function JB(e,t){if(e===1)return"rc";let n="";for(let a=0;a<e;a++)n+=t[a],a<e-1&&(n+=",");return n}var QB=class{constructor(e){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outputShape=e;let t=e.length;if(t===0)this.userCode=`
        void main() {
          setOutput(vec4(getA(), 0., 0., 0.));
        }
      `;else{let n=yn("rc",t),a=ut(t),r=tV(t,e,n),s=nV(t,e[e.length-1],e[e.length-2],n),i=aV(e,n);this.userCode=`
        void main() {
          ${a} rc = getOutputCoords();

          if(${r}) {
            setOutput(vec4(0));
          } else {
            ${s}

            setOutput(vec4(${i}));
          }
        }
      `}}};function eV(e,t){let n=[];for(let a=0;a<=1;a++)for(let r=0;r<=1;r++){let s=`${a===0?"r":"rp1"}, ${r===0?"c":"cp1"}`;for(let i=2;i<e;i++)s=`${t[t.length-1-i]},`+s;n.push(s)}return n}function tV(e,t,n){if(e===1)return`rc > ${t[0]}`;let a="";for(let r=e-2;r<e;r++)a+=`${n[r]} >= ${t[r]}`,r<e-1&&(a+="||");return a}function nV(e,t,n,a){if(e===1)return"";let r=a.slice(-2);return`
    int r = ${r[0]};
    int c = ${r[1]};
    int rp1 = r + 1;
    int cp1 = c + 1;

    bool cEdge = cp1 >= ${t};
    bool rEdge = rp1 >= ${n};
  `}function aV(e,t){let n=e.length,a=eV(n,t);return n===1?`getA(rc),
            rc + 1 >= ${e[0]} ? 0. : getA(rc + 1),
            0, 0`:`getA(${a[0]}),
          cEdge ? 0. : getA(${a[1]}),
          rEdge ? 0. : getA(${a[2]}),
          rEdge || cEdge ? 0. : getA(${a[3]})`}var dw=class{constructor(e,t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;let n="";for(let a=0;a<4;a++){let r="thisRC = rc;";a%2==1&&(r+="thisRC.z += 1;"),a>1&&(r+="thisRC.y += 1;"),n+=`
        ${r}
        ${a>0?"if(thisRC.y < rows && thisRC.z < cols){":""}
          int flatIndex = getFlatIndex(thisRC);

          ivec3 inputRC = inputCoordsFromReshapedOutCoords(flatIndex);
          vec2 inputRCInnerDims = vec2(float(inputRC.y),float(inputRC.z));

          result[${a}] =
            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);
        ${a>0?"}":""}
      `}this.userCode=`
      ${rV(t)}
      ${LA(e)}

      void main() {
        ivec3 rc = getOutputCoords();

        vec4 result = vec4(0.);

        ivec3 thisRC;
        int rows = ${e[1]};
        int cols = ${e[2]};

        ${n}

        setOutput(result);
      }
    `}};function rV(e){return`
    ivec3 inputCoordsFromReshapedOutCoords(int index) {
      ${Pi(["r","c","d"],e)}
      return ivec3(r, c, d);
    }
  `}var sV=class{constructor(e){this.gpgpu=e,this.numUsedTextures=0,this.numFreeTextures=0,this._numBytesAllocated=0,this._numBytesFree=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}acquireTexture(e,t,n){let a=cw(t,n),r=hw(e,a,n);r in this.freeTextures||(this.freeTextures[r]=[]),r in this.usedTextures||(this.usedTextures[r]=[]);let s=pw(e,a,this.gpgpu.gl,this.gpgpu.textureConfig,n);if(this.freeTextures[r].length>0){this.numFreeTextures--,this.numUsedTextures++,this._numBytesFree-=s,this.log();let o=this.freeTextures[r].shift();return this.usedTextures[r].push(o),o}let i;return a===an.PACKED_2X2_FLOAT32?i=this.gpgpu.createPackedMatrixTexture(e[0],e[1]):a===an.PACKED_2X2_FLOAT16?i=this.gpgpu.createFloat16PackedMatrixTexture(e[0],e[1]):a===an.UNPACKED_FLOAT32?i=this.gpgpu.createFloat32MatrixTexture(e[0],e[1]):a===an.UNPACKED_FLOAT16?i=this.gpgpu.createFloat16MatrixTexture(e[0],e[1]):a===an.PACKED_4X1_UNSIGNED_BYTE&&(i=this.gpgpu.createUnsignedBytesMatrixTexture(e[0],e[1])),this.usedTextures[r].push(i),this.numUsedTextures++,this._numBytesAllocated+=s,this.log(),i}releaseTexture(e,t,n,a){if(this.freeTextures==null)return;let r=cw(n,a),s=hw(t,r,a);s in this.freeTextures||(this.freeTextures[s]=[]);let i=pw(t,r,this.gpgpu.gl,this.gpgpu.textureConfig,a),o=te().get("WEBGL_DELETE_TEXTURE_THRESHOLD");o!==-1&&this._numBytesAllocated>o?(this.gpgpu.deleteMatrixTexture(e),this._numBytesAllocated-=i):(this.freeTextures[s].push(e),this.numFreeTextures++,this._numBytesFree+=i),this.numUsedTextures--;let u=this.usedTextures[s],l=u.indexOf(e);if(l<0)throw new Error("Cannot release a texture that was never provided by this texture manager");u.splice(l,1),this.log()}log(){if(!this.logEnabled)return;let e=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",`${this.numFreeTextures} / ${this.numUsedTextures}`,`(${e})`);let t=this._numBytesFree/this._numBytesAllocated;console.log(`Bytes allocated: ${this._numBytesAllocated}`),console.log(`Bytes unused: ${this._numBytesFree} (${Math.round(100*t)}%)`)}get numBytesAllocated(){return this._numBytesAllocated}get numBytesFree(){return this._numBytesFree}getNumUsedTextures(){return this.numUsedTextures}getNumFreeTextures(){return this.numFreeTextures}dispose(){if(this.freeTextures!=null){for(let e in this.freeTextures)this.freeTextures[e].forEach(t=>{this.gpgpu.deleteMatrixTexture(t)});for(let e in this.usedTextures)this.usedTextures[e].forEach(t=>{this.gpgpu.deleteMatrixTexture(t)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0,this._numBytesAllocated=0,this._numBytesFree=0}}};function iV(e,t){let n=e;if(t===n.R32F)return 4;if(t===n.R16F)return 2;if(t===n.RGBA32F||t===e.RGBA)return 16;if(t===n.RGBA16F)return 8;throw new Error(`Unknown internal format ${t}`)}function pw(e,t,n,a,r){let s=oV(t,a),i;if(r){let[u,l]=Bl(e[0],e[1]);i=u*l}else{let[u,l]=Cd(e[0],e[1]);i=u*l}let o=iV(n,s);return i*o}function oV(e,t){switch(e){case an.PACKED_2X2_FLOAT32:return jA(t);case an.PACKED_2X2_FLOAT16:return UA(t);case an.UNPACKED_FLOAT32:return WA(t);case an.UNPACKED_FLOAT16:return BA(t);case an.PACKED_4X1_UNSIGNED_BYTE:return VA(t);default:throw new Error(`Unknown physical texture type ${e}`)}}function lV(e){return te().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?e?an.PACKED_2X2_FLOAT32:an.UNPACKED_FLOAT32:e?an.PACKED_2X2_FLOAT16:an.UNPACKED_FLOAT16}function cw(e,t){if(e===da.UPLOAD)return an.PACKED_2X2_FLOAT32;if(e===da.RENDER||e==null)return lV(t);if(e===da.DOWNLOAD||e===da.PIXELS)return an.PACKED_4X1_UNSIGNED_BYTE;throw new Error(`Unknown logical texture type ${e}`)}function hw(e,t,n){return`${e[0]}_${e[1]}_${t}_${n}`}var Yr=class{constructor(e,t){this.variableNames=["A"],this.outputShape=e,this.userCode=`
      float unaryOperation(float x) {
        ${t}
      }

      void main() {
        float x = getAAtOutCoords();
        float y = unaryOperation(x);

        setOutput(y);
      }
    `}},Ca="if (isnan(x)) return x;",uV="return x;",fw="return abs(x);",dV="return (x >= 0.0) ? x : (exp(x) - 1.0);",pV=Ca+`
  return (x < 0.0) ? 0.0 : x;
`,cV=Ca+`
  return (x < 0.0) ? 0.0 : min(6.0, x);
`,jh="return x;",hV="return 1.0 / (1.0 + exp(-1.0 * x));",fV="return x;",mV=`
  vec4 result;

  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);
  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);
  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);
  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);

  return result;
`,AV=`
  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,gV=`
  vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,yV="return 1.0 / (1.0 + exp(-1.0 * x));",ql=class{constructor(e,t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.userCode=`
      vec4 unaryOperation(vec4 x) {
        ${t}
      }

      void main() {
        vec4 x = getAAtOutCoords();
        vec4 y = unaryOperation(x);

        setOutput(y);
      }
    `}},xV=class{constructor(e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outputShape=e;let t=e.length,n=yn("rc",t),a=ut(t),r=JB(t,n),s=n.slice(-2),i=t<=1?"rc":`vec2(${s.join(",")})`;this.userCode=`
      void main() {
        ${a} rc = getOutputCoords();
        vec4 packedInput = getA(${r});

        setOutput(getChannel(packedInput, ${i}));
      }
    `}},bV=Za.whereImpl,vV=1e-7,wV=1e-4,GA={};function kV(e){return e in GA||(GA[e]={}),GA[e]}var IV=te().getNumber("CPU_HANDOFF_SIZE_THRESHOLD"),SV=600;function NV(){return te().global.screen==null?1024:te().global.screen.height*te().global.screen.width*window.devicePixelRatio*SV/1024/1024}var Xl=class extends Eu{constructor(e){super();if(this.pendingRead=new WeakMap,this.pendingDisposal=new WeakSet,this.dataRefCount=new WeakMap,this.numBytesInGPU=0,this.uploadWaitMs=0,this.downloadWaitMs=0,this.lastGlFlushTime=0,this.warnedAboutMemory=!1,this.pendingDeletes=0,this.disposed=!1,!te().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(e==null){let t=Ja(te().getNumber("WEBGL_VERSION"));this.binaryCache=kV(te().getNumber("WEBGL_VERSION")),this.gpgpu=new Vh(t),this.canvas=t.canvas,this.gpgpuCreatedLocally=!0}else this.gpgpu=e,this.binaryCache={},this.gpgpuCreatedLocally=!1,this.canvas=e.gl.canvas;this.textureManager=new sV(this.gpgpu),this.numMBBeforeWarning=NV(),this.texData=new Up(this,fr())}nextDataId(){return Xl.nextDataId++}numDataIds(){return this.texData.numDataIds()-this.pendingDeletes}write(e,t,n){if((te().getBool("WEBGL_CHECK_NUMERICAL_PROBLEMS")||te().getBool("DEBUG"))&&this.checkNumericalProblems(e),n==="complex64"&&e!=null)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");let a={id:this.nextDataId()};return this.texData.set(a,{shape:t,dtype:n,values:e,usage:da.UPLOAD,refCount:1}),a}refCount(e){return this.texData.has(e)?this.texData.get(e).refCount:0}incRef(e){let t=this.texData.get(e);t.refCount++}decRef(e){if(this.texData.has(e)){let t=this.texData.get(e);t.refCount--}}move(e,t,n,a,r){if(te().getBool("DEBUG")&&this.checkNumericalProblems(t),a==="complex64")throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(e,{shape:n,dtype:a,values:t,usage:da.UPLOAD,refCount:r})}disposeIntermediateTensorInfo(e){this.disposeData(e.dataId)}readSync(e){let t=this.texData.get(e),{values:n,dtype:a,complexTensorInfos:r,slice:s,shape:i,isPacked:o}=t;if(s!=null){let p;o?p=new ql(i,jh):p=new Yr(i,jh);let c=this.runWebGLProgram(p,[{dataId:e,shape:i,dtype:a}],a),h=this.readSync(c.dataId);return this.disposeIntermediateTensorInfo(c),h}if(n!=null)return this.convertAndCacheOnCPU(e);if(a==="string")return n;let u=this.activeTimers!=null,l;u&&(l=k.now());let d;if(a==="complex64"){let p=this.readSync(r.real.dataId),c=this.readSync(r.imag.dataId);d=F.mergeRealAndImagArrays(p,c)}else d=this.getValuesFromTexture(e);return u&&(this.downloadWaitMs+=k.now()-l),this.convertAndCacheOnCPU(e,d)}async read(e){if(this.pendingRead.has(e)){let h=this.pendingRead.get(e);return new Promise(m=>h.push(m))}let t=this.texData.get(e),{values:n,shape:a,slice:r,dtype:s,complexTensorInfos:i,isPacked:o}=t;if(r!=null){let h;o?h=new ql(a,jh):h=new Yr(a,jh);let m=this.runWebGLProgram(h,[{dataId:e,shape:a,dtype:s}],s),f=this.read(m.dataId);return this.disposeIntermediateTensorInfo(m),f}if(n!=null)return this.convertAndCacheOnCPU(e);if(!te().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&te().getNumber("WEBGL_VERSION")===2)throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");let u=null,l;if(s!=="complex64"&&te().get("WEBGL_BUFFER_SUPPORTED")){l=this.decode(e);let h=this.texData.get(l.dataId);u=this.gpgpu.createBufferFromTexture(h.texture,...Ed(a))}this.pendingRead.set(e,[]),s!=="complex64"&&await this.gpgpu.createAndWaitForFence();let d;if(s==="complex64"){let h=await Promise.all([this.read(i.real.dataId),this.read(i.imag.dataId)]),m=h[0],f=h[1];d=F.mergeRealAndImagArrays(m,f)}else if(u==null)d=this.getValuesFromTexture(e);else{let h=k.sizeFromShape(a);d=this.gpgpu.downloadFloat32MatrixFromBuffer(u,h)}l!=null&&this.disposeIntermediateTensorInfo(l);let p=this.convertAndCacheOnCPU(e,d),c=this.pendingRead.get(e);return this.pendingRead.delete(e),c.forEach(h=>h(p)),this.pendingDisposal.has(e)&&(this.pendingDisposal.delete(e),this.disposeData(e)&&fr().removeDataId(e,this),this.pendingDeletes--),p}bufferSync(e){let t=this.readSync(e.dataId),n=t;if(e.dtype==="string")try{n=t.map(a=>k.decodeString(a))}catch(a){throw new Error("Failed to decode encoded string bytes into utf-8")}return Ve(e.shape,e.dtype,n)}checkNumericalProblems(e){if(e!=null)for(let t=0;t<e.length;t++){let n=e[t];if(!fv(n))throw te().getBool("WEBGL_RENDER_FLOAT32_CAPABLE")?Error(`The value ${n} cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'`):Error(`The value ${n} cannot be represented on this device.`)}}getValuesFromTexture(e){let{shape:t,dtype:n,isPacked:a}=this.texData.get(e),r=k.sizeFromShape(t);if(te().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){let p=this.decode(e),c=this.texData.get(p.dataId),h=this.gpgpu.downloadMatrixFromPackedTexture(c.texture,...Ed(t)).subarray(0,r);return this.disposeIntermediateTensorInfo(p),h}let s=te().getBool("WEBGL_PACK")&&a===!0,i=s?Ph(t):t,o=s?new TW(i):new NW(i),u=this.runWebGLProgram(o,[{shape:i,dtype:n,dataId:e}],"float32"),l=this.texData.get(u.dataId),d=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(l.texture,l.texShape[0],l.texShape[1]).subarray(0,r);return this.disposeIntermediateTensorInfo(u),d}timerAvailable(){return te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0}async time(e){let t=this.activeTimers,n=[],a=!1;this.programTimersStack==null?(this.programTimersStack=n,a=!0):this.activeTimers.push(n),this.activeTimers=n,e();let r=k.flatten(this.activeTimers.map(o=>o.query)).filter(o=>o!=null),s=k.flatten(this.activeTimers.map(o=>o.name)).filter(o=>o!=null);this.activeTimers=t,a&&(this.programTimersStack=null);let i={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null};if(te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0){let o=await Promise.all(r);i.kernelMs=k.sum(o),i.getExtraProfileInfo=()=>o.map((u,l)=>({name:s[l],ms:u})).map(u=>`${u.name}: ${u.ms}`).join(", ")}else i.kernelMs={error:"WebGL query timers are not supported in this environment."};return this.uploadWaitMs=0,this.downloadWaitMs=0,i}memory(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU,numBytesInGPUAllocated:this.textureManager.numBytesAllocated,numBytesInGPUFree:this.textureManager.numBytesFree}}startTimer(){return te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:k.now(),endMs:null}}endTimer(e){return te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),e):(e.endMs=k.now(),e)}async getQueryTime(e){if(te().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0)return this.gpgpu.waitForQueryAndGetTime(e);let t=e;return t.endMs-t.startMs}disposeData(e,t=!1){if(this.pendingDisposal.has(e))return!1;if(!this.texData.has(e))return!0;if(t?this.texData.get(e).refCount=0:this.texData.get(e).refCount--,!t&&this.texData.get(e).refCount>0)return!1;if(this.pendingRead.has(e))return this.pendingDisposal.add(e),this.pendingDeletes++,!1;this.releaseGPUData(e);let{complexTensorInfos:n}=this.texData.get(e);return n!=null&&(this.disposeData(n.real.dataId,t),this.disposeData(n.imag.dataId,t)),this.texData.delete(e),!0}releaseGPUData(e){let{texture:t,dtype:n,texShape:a,usage:r,isPacked:s,slice:i}=this.texData.get(e),o=i&&i.origDataId||e,u=this.dataRefCount.get(o);u>1?this.dataRefCount.set(o,u-1):(this.dataRefCount.delete(o),t!=null&&(this.numBytesInGPU-=this.computeBytes(a,n),this.textureManager.releaseTexture(t,a,r,s)));let l=this.texData.get(e);l.texture=null,l.texShape=null,l.isPacked=!1,l.slice=null}getTexture(e){return this.uploadToGPU(e),this.texData.get(e).texture}getDataInfo(e){return this.texData.get(e)}shouldExecuteOnCPU(e,t=IV){return te().getBool("WEBGL_CPU_FORWARD")&&e.every(n=>this.texData.get(n.dataId).texture==null&&k.sizeFromShape(n.shape)<t)}getGPGPUContext(){return this.gpgpu}where(e){F.warn("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");let t=e.dataSync();return bV(e.shape,t)}packedUnaryOp(e,t,n){let a=new ql(e.shape,t),r=this.compileAndRun(a,[e],n);return fr().makeTensorFromDataId(r.dataId,r.shape,r.dtype)}abs(e){if(this.shouldExecuteOnCPU([e])&&e.dtype!=="complex64"){let a=ow(this.texData.get(e.dataId).values);return this.makeOutput(e.shape,e.dtype,a)}if(te().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,fw,e.dtype);let t=new Yr(e.shape,fw),n=this.compileAndRun(t,[e]);return fr().makeTensorFromDataId(n.dataId,n.shape,n.dtype)}makeTensorInfo(e,t,n){let a;if(t==="string"&&n!=null&&n.length>0&&k.isString(n[0])){let r=n.map(s=>k.encodeString(s));a=this.write(r,e,t)}else a=this.write(n,e,t);return this.texData.get(a).usage=null,{dataId:a,shape:e,dtype:t}}makeOutput(e,t,n){let{dataId:a}=this.makeTensorInfo(e,t,n);return fr().makeTensorFromDataId(a,e,t,this)}unpackTensor(e){let t=new xV(e.shape);return this.runWebGLProgram(t,[e],e.dtype)}packTensor(e){let t=new QB(e.shape),n=!0;return this.runWebGLProgram(t,[e],e.dtype,null,n)}packedReshape(e,t){let n=[zi(e.shape),..._i(e.shape)],a={dtype:e.dtype,shape:n,dataId:e.dataId},r=[zi(t),..._i(t)],s=new dw(r,n),i=!0,o=this.runWebGLProgram(s,[a],e.dtype,null,i);return{dataId:o.dataId,shape:t,dtype:o.dtype}}decode(e){let t=this.texData.get(e),{isPacked:n,shape:a,dtype:r}=t,s=Ph(a),i;n?i=new SW(s):i=new IW(s);let o=!0,u=this.runWebGLProgram(i,[{shape:s,dtype:r,dataId:e}],r,null,o);return{dtype:r,shape:a,dataId:u.dataId}}runWebGLProgram(e,t,n,a,r=!1){let s=this.makeTensorInfo(e.outputShape,n),i=this.texData.get(s.dataId);if(e.packedOutput&&(i.isPacked=!0),e.outPackingScheme===Td.DENSE){let f=Ed(e.outputShape);i.texShape=f.map(A=>A*2)}if(e.outTexUsage!=null&&(i.usage=e.outTexUsage),k.sizeFromShape(s.shape)===0)return i.values=k.getTypedArrayFromDType(s.dtype,0),s;let o=[],u=t.map(f=>{if(f.dtype==="complex64")throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");let A=this.texData.get(f.dataId);if(A.texture==null){if(!e.packedInputs&&k.sizeFromShape(f.shape)<=te().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:f.shape,texData:null,isUniform:!0,uniformValues:A.values};e.packedInputs&&(A.isPacked=!0,A.shape=f.shape)}else if(!!A.isPacked!=!!e.packedInputs)f=A.isPacked?this.unpackTensor(f):this.packTensor(f),o.push(f),A=this.texData.get(f.dataId);else if(A.isPacked&&!Fd(A.shape,f.shape)){let g=f,y=f.shape;f.shape=A.shape,f=this.packedReshape(f,y),o.push(f),A=this.texData.get(f.dataId),g.shape=y}return this.uploadToGPU(f.dataId),{shape:f.shape,texData:A,isUniform:!1}});this.uploadToGPU(s.dataId);let l={shape:s.shape,texData:i,isUniform:!1},d=mB(e,u,l),p=this.getAndSaveBinary(d,()=>hB(this.gpgpu,e,u,l)),c=this.activeTimers!=null,h;c&&(h=this.startTimer()),fB(this.gpgpu,p,u,l,a),o.forEach(f=>this.disposeIntermediateTensorInfo(f)),c&&(h=this.endTimer(h),this.activeTimers.push({name:e.constructor.name,query:this.getQueryTime(h)}));let m=te().get("WEBGL_FLUSH_THRESHOLD");if(m>0){let f=k.now();f-this.lastGlFlushTime>m&&(this.gpgpu.gl.flush(),this.lastGlFlushTime=f)}if(!te().getBool("WEBGL_LAZILY_UNPACK")&&i.isPacked&&r===!1){let f=this.unpackTensor(s);return this.disposeIntermediateTensorInfo(s),f}return s}compileAndRun(e,t,n,a,r=!1){return n=n||t[0].dtype,this.runWebGLProgram(e,t,n,a,r)}getAndSaveBinary(e,t){return e in this.binaryCache||(this.binaryCache[e]=t()),this.binaryCache[e]}getTextureManager(){return this.textureManager}dispose(){this.disposed||(te().getBool("IS_TEST")||Object.keys(this.binaryCache).forEach(e=>{this.gpgpu.deleteProgram(this.binaryCache[e].webGLProgram),delete this.binaryCache[e]}),this.textureManager.dispose(),this.canvas!=null&&typeof HTMLCanvasElement!="undefined"&&this.canvas instanceof HTMLCanvasElement?this.canvas.remove():this.canvas=null,this.gpgpuCreatedLocally&&(this.gpgpu.program=null,this.gpgpu.dispose()),this.disposed=!0)}floatPrecision(){return this.floatPrecisionValue==null&&(this.floatPrecisionValue=V(()=>{if(!te().get("WEBGL_RENDER_FLOAT32_ENABLED")){let e=te().getBool("DEBUG");te().set("DEBUG",!1);let t=this.abs(ke(1e-8)).dataSync()[0];if(te().set("DEBUG",e),t>0)return 32}return 16})),this.floatPrecisionValue}epsilon(){return this.floatPrecision()===32?vV:wV}uploadToGPU(e){let t=this.texData.get(e),{shape:n,dtype:a,values:r,texture:s,usage:i,isPacked:o}=t;if(s!=null)return;let u=this.activeTimers!=null,l;u&&(l=k.now());let d=t.texShape;if(d==null&&(d=Mv(n,o),t.texShape=d),r!=null){let p=Ph(n),c,h=d[1],m=d[0],f=r instanceof Uint8Array;o?([h,m]=Bl(d[0],d[1]),c=new EW(p,[m,h],f)):c=new CW(p,[m,h],f);let A=this.makeTensorInfo([m,h],a);f?this.texData.get(A.dataId).usage=da.PIXELS:this.texData.get(A.dataId).usage=da.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(A.dataId),h,m,r);let g=!0,y=this.runWebGLProgram(c,[A],a,null,g),x=this.texData.get(y.dataId);t.texture=x.texture,t.texShape=x.texShape,t.isPacked=x.isPacked,t.usage=x.usage,this.disposeIntermediateTensorInfo(A),this.texData.delete(y.dataId),t.values=null,u&&(this.uploadWaitMs+=k.now()-l)}else{let p=this.acquireTexture(d,i,a,o);t.texture=p}}convertAndCacheOnCPU(e,t){let n=this.texData.get(e),{dtype:a}=n;return this.releaseGPUData(e),t!=null&&(n.values=TV(t,a)),n.values}acquireTexture(e,t,n,a){if(this.numBytesInGPU+=this.computeBytes(e,n),!this.warnedAboutMemory&&this.numBytesInGPU>this.numMBBeforeWarning*1024*1024){let r=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn(`High memory usage in GPU: ${r} MB, most likely due to a memory leak`)}return this.textureManager.acquireTexture(e,t,a)}computeBytes(e,t){return e[0]*e[1]*k.bytesPerElement(t)}};Xl.nextDataId=0;function TV(e,t){if(t==="float32"||t==="complex64")return e;if(t==="int32"||t==="bool"){let n=t==="int32"?new Int32Array(e.length):new Uint8Array(e.length);for(let a=0;a<n.length;++a)n[a]=Math.round(e[a]);return n}else throw new Error(`Unknown dtype ${t}`)}var mw="3.7.0";function Aw(){te().set("WEBGL_FORCE_F16_TEXTURES",!0)}ad.isBrowser()&&kl("webgl",()=>new Xl,2);var CV={forceHalfFloat:Aw},gw=`
  if (isnan(a)) return a;
  if (isnan(b)) return b;
`,Kl=class{constructor(e,t,n){this.variableNames=["A","B"],this.outputShape=F.assertAndGetBroadcastShape(t,n),this.userCode=`
      float binaryOperation(float a, float b) {
        ${e}
      }

      void main() {
        float a = getAAtOutCoords();
        float b = getBAtOutCoords();
        setOutput(binaryOperation(a, b));
      }
    `}},Uh=`
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;
`,Dd=class{constructor(e,t,n,a=!1){this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=F.assertAndGetBroadcastShape(t,n);let r=this.outputShape.length,s="";if(a)if(r===0||k.sizeFromShape(this.outputShape)===1)s=`
          result.y = 0.;
          result.z = 0.;
          result.w = 0.;
        `;else if(s=`
          ${ut(r)} coords = getOutputCoords();
        `,r===1)s+=`
            result.y = (coords + 1) >= ${this.outputShape[0]} ? 0. : result.y;
            result.z = 0.;
            result.w = 0.;
          `;else{let i=yn("coords",r);s+=`
            bool nextRowOutOfBounds =
              (${i[r-2]} + 1) >= ${this.outputShape[r-2]};
            bool nextColOutOfBounds =
              (${i[r-1]} + 1) >= ${this.outputShape[r-1]};
            result.y = nextColOutOfBounds ? 0. : result.y;
            result.z = nextRowOutOfBounds ? 0. : result.z;
            result.w = nextColOutOfBounds || nextRowOutOfBounds ? 0. : result.w;
          `}this.userCode=`
      vec4 binaryOperation(vec4 a, vec4 b) {
        ${e}
      }

      void main() {
        vec4 a = getAAtOutCoords();
        vec4 b = getBAtOutCoords();

        vec4 result = binaryOperation(a, b);
        ${s}

        setOutput(result);
      }
    `}};function Xn(e){let{inputs:t,backend:n}=e,{x:a}=t;return n.incRef(a.dataId),{dataId:a.dataId,shape:a.shape,dtype:a.dtype}}var EV={kernelName:zs,backendName:"webgl",kernelFunc:Xn};function Jr(e){let{inputs:t,backend:n}=e,{real:a,imag:r}=t,s=n.makeTensorInfo(a.shape,"complex64"),i=n.texData.get(s.dataId),o=Xn({inputs:{x:a},backend:n}),u=Xn({inputs:{x:r},backend:n});return i.complexTensorInfos={real:o,imag:u},s}var RV={kernelName:Yp,backendName:"webgl",kernelFunc:Jr},yw="return (a < 0.) ? b * a : a;",xw=`
  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));
  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);
`;function MV(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{alpha:s}=a,i=n.makeTensorInfo([],"float32",k.createScalarValue(s,"float32")),o=te().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Dd(xw,r.shape,i.shape):new Kl(yw,r.shape,i.shape),u=n.runWebGLProgram(o,[r,i],r.dtype);return n.disposeIntermediateTensorInfo(i),u}var FV={kernelName:_s,backendName:"webgl",kernelFunc:MV},bw="return (a < 0.) ? b * a : a;",vw=`
  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));
  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);
`;function $V(e){let{inputs:t,backend:n}=e,{x:a,alpha:r}=t,s=te().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Dd(vw,a.shape,r.shape):new Kl(bw,a.shape,r.shape);return n.runWebGLProgram(s,[a,r],a.dtype)}var DV={kernelName:Zs,backendName:"webgl",kernelFunc:$V},ww="if (isnan(x)) return x;",OV=`
  if (isnan(a)) return a;
  if (isnan(b)) return b;
`,zV=`
  result.r = isNaN.r > 0. ? NAN : result.r;
  result.g = isNaN.g > 0. ? NAN : result.g;
  result.b = isNaN.b > 0. ? NAN : result.b;
  result.a = isNaN.a > 0. ? NAN : result.a;
`;function Ke({opSnippet:e,packedOpSnippet:t,cpuKernelImpl:n,dtype:a}){return({inputs:r,backend:s})=>{let{x:i}=r,o=s,u=a||i.dtype;if(o.shouldExecuteOnCPU([i])&&n!=null){let p=o.texData.get(i.dataId),c=n(p.values,u);return o.makeTensorInfo(i.shape,u,c)}let l=te().getBool("WEBGL_PACK_UNARY_OPERATIONS")&&t!=null,d;return l?d=new ql(i.shape,t):d=new Yr(i.shape,e),o.runWebGLProgram(d,[i],u)}}function rn({opSnippet:e,packedOpSnippet:t,checkOutOfBounds:n=!1,supportsComplex:a=!1,cpuKernelImpl:r,dtype:s}){return({inputs:i,backend:o})=>{let{a:u,b:l}=i,d=o;if(a&&u.dtype==="complex64"){let m=d.texData.get(u.dataId),f=d.texData.get(l.dataId),[A,g]=[[m.complexTensorInfos.real,f.complexTensorInfos.real],[m.complexTensorInfos.imag,f.complexTensorInfos.imag]].map(x=>{let[v,b]=x,w={dataId:v.dataId,dtype:v.dtype,shape:u.shape},N={dataId:b.dataId,dtype:b.dtype,shape:l.shape},C=new Kl(e,u.shape,l.shape);return d.runWebGLProgram(C,[w,N],ya(v.dtype,b.dtype))}),y=Jr({inputs:{real:A,imag:g},backend:d});return d.disposeIntermediateTensorInfo(A),d.disposeIntermediateTensorInfo(g),y}let p=s||ya(u.dtype,l.dtype);if((u.dtype==="string"||l.dtype==="string"||d.shouldExecuteOnCPU([u,l]))&&r!=null){let m=d.texData.get(u.dataId).values,f=d.texData.get(l.dataId).values,A=u.dtype==="string"?F.fromUint8ToStringArray(m):m,g=u.dtype==="string"?F.fromUint8ToStringArray(f):f,[y,x]=r(u.shape,l.shape,A,g,p),v=d.makeTensorInfo(x,p),b=d.texData.get(v.dataId);return b.values=y,v}let c=te().getBool("WEBGL_PACK_BINARY_OPERATIONS")&&t!=null,h;return c?h=new Dd(t,u.shape,l.shape,n):h=new Kl(e,u.shape,l.shape),d.runWebGLProgram(h,[u,l],p)}}function Hh(e,t=!1){if(e==="linear")return t?fV:uV;if(e==="relu")return t?AV:pV;if(e==="elu")return t?mV:dV;if(e==="relu6")return t?gV:cV;if(e==="prelu")return t?vw:bw;if(e==="leakyrelu")return t?xw:yw;if(e==="sigmoid")return t?yV:hV;throw new Error(`Activation ${e} has not been implemented for the WebGL backend.`)}var kw=class{constructor(e,t,n,a=!1,r=!1,s=!1,i=null,o=!1,u=!1){this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=n;let l=a?e[1]:e[2],d=Math.ceil(l/2),p=a?"i * 2, rc.y":"rc.y, i * 2",c=r?"rc.z, i * 2":"i * 2, rc.z",h=a?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],m=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],f="",A="";i&&(o?f=`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          ${i}
        }`:u?f=`vec4 activation(vec4 a) {
          vec4 b = getLeakyreluAlphaAtOutCoords();
          ${i}
        }`:f=`vec4 activation(vec4 x) {
          ${i}
        }`,A="result = activation(result);");let g=s?"result += getBiasAtOutCoords();":"";s&&this.variableNames.push("bias"),o&&this.variableNames.push("preluActivationWeights"),u&&this.variableNames.push("leakyreluAlpha");let y="rc.x",x="rc.x";e[0]<t[0]?y=`int(min(float(rc.x), ${e[0]-1}.))`:t[0]<e[0]&&(x=`int(min(float(rc.x), ${t[0]-1}.))`),this.userCode=`
      ${f}

      const float sharedDimension = ${d}.0;

      vec4 dot2x2ARowBCol(ivec3 rc) {
        vec4 result = vec4(0);
        for (int i = 0; i < ${d}; i++) {
          int batchA = ${y};
          int batchB = ${x};
          vec4 a = getMatrixA(batchA, ${p});
          vec4 b = getMatrixB(batchB, ${c});

          // These swizzled products need to be separately added.
          // See: https://github.com/tensorflow/tfjs/issues/1735
          result += (${h[0]} * ${m[0]});
          result += (${h[1]} * ${m[1]});
        }
        return result;
      }

      void main() {
        ivec3 rc = getOutputCoords();
        vec4 result = dot2x2ARowBCol(rc);

        ${g}

        ${A}

        setOutput(result);
      }
    `}},Iw={REAL:"return areal * breal - aimag * bimag;",IMAG:"return areal * bimag + aimag * breal;"},Sw=class{constructor(e,t,n){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=F.assertAndGetBroadcastShape(t,n),this.userCode=`
      float binaryOpComplex(
          float areal, float aimag, float breal, float bimag) {
        ${e}
      }

      void main() {
        float areal = getARealAtOutCoords();
        float aimag = getAImagAtOutCoords();
        float breal = getBRealAtOutCoords();
        float bimag = getBImagAtOutCoords();
        setOutput(binaryOpComplex(areal, aimag, breal, bimag));
      }
    `}},Nw="return a * b;";function qA(e){let{inputs:t,backend:n}=e,{a,b:r}=t,s=F.upcastType(a.dtype,r.dtype);if(a.dtype==="complex64"){let o=n.texData.get(a.dataId),u=n.texData.get(r.dataId),l=new Sw(Iw.REAL,a.shape,r.shape),d=new Sw(Iw.IMAG,a.shape,r.shape),p=[{dataId:o.complexTensorInfos.real.dataId,dtype:o.complexTensorInfos.real.dtype,shape:a.shape},{dataId:o.complexTensorInfos.imag.dataId,dtype:o.complexTensorInfos.imag.dtype,shape:a.shape},{dataId:u.complexTensorInfos.real.dataId,dtype:u.complexTensorInfos.real.dtype,shape:r.shape},{dataId:u.complexTensorInfos.imag.dataId,dtype:u.complexTensorInfos.imag.dtype,shape:r.shape}],c=n.runWebGLProgram(l,p,"float32"),h=n.runWebGLProgram(d,p,"float32"),m=Jr({inputs:{real:c,imag:h},backend:n});return n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(h),m}if(n.shouldExecuteOnCPU([a,r])){let o=n.texData.get(a.dataId),u=n.texData.get(r.dataId),[l,d]=OB(a.shape,r.shape,o.values,u.values,s),p=n.makeTensorInfo(d,s),c=n.texData.get(p.dataId);return c.values=l,p}let i;return te().getBool("WEBGL_PACK_BINARY_OPERATIONS")?i=new Dd(Nw,a.shape,r.shape):i=new Kl(Nw,a.shape,r.shape),n.runWebGLProgram(i,[a,r],s)}var _V={kernelName:Gs,backendName:"webgl",kernelFunc:qA};function PV(e,t,n){let a=[zi(e.shape),..._i(e.shape)],r={dtype:e.dtype,shape:a,dataId:e.dataId},s=[zi(t),..._i(t)],i=new dw(s,a),o=!0,u=n.runWebGLProgram(i,[r],e.dtype,null,o);return{dataId:u.dataId,shape:t,dtype:u.dtype}}function ye(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{shape:s}=a,i=n,o=k.sizeFromShape(r.shape),u=k.inferFromImplicitShape(s,o),l=k.sizeFromShape(u);k.assert(o===l,()=>`The new shape (${u}) has ${l} elements and the old shape (${r.shape}) has ${o} elements. The new shape and old shape must have the same number of elements.`);let d=i.texData.get(r.dataId);return d.isPacked&&!Fd(r.shape,u)&&!(d.texture!==null&&Fd(d.shape,u))?PV(r,u,i):(i.incRef(r.dataId),{dataId:r.dataId,shape:u,dtype:r.dtype})}var LV={kernelName:el,backendName:"webgl",kernelFunc:ye},Tw=class{constructor(e,t){this.variableNames=["x"];let{windowSize:n,batchSize:a,inSize:r,outSize:s}=e;this.outputShape=[a,s];let i=Math.floor(n/4)*4,o=n%4,u="sumValue += dot(values, ones);";if(t!=null){let d=1/t;u=`sumValue += dot(values * ${k.isInt(d)?d.toPrecision(2):d}, ones);`}let l="";r%n>0&&(l=`
        if (inIdx < 0 || inIdx >= ${r}) {
          return 0.0;
        }
      `),this.userCode=`
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float getValue(int batch, int inIdx) {
        ${l}
        return getX(batch, inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = outIdx * ${n};

        float sumValue = 0.0;

        for (int i = 0; i < ${i}; i += 4) {
          int inIdx = inOffset + i;
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          ${u}
        }

        int inIdx = inOffset + ${i};
        if (${o===1}) {
          vec4 values = vec4(getValue(batch, inIdx), 0.0, 0.0, 0.0);

          ${u}
        } else if (${o===2}) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1), 0.0, 0.0);

          ${u}
        } else if (${o===3}) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2), 0.0);

          ${u}
        }
        setOutput(sumValue);
      }
    `}},WV=class{constructor(e,t){this.variableNames=["x"];let{windowSize:n,batchSize:a,inSize:r,outSize:s}=e;this.outputShape=[a,s];let i="0.0",o="";t==="prod"?i="1.0":t==="min"?(i="1.0 / 1e-20",o="min"):t==="max"&&(i="-1.0 / 1e-20",o="max");let u=`${t}(${t}(${t}(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])`;t==="sum"?u="sumValue":t==="prod"?u="prodValue":t==="all"?u="allValue":t==="any"&&(u="anyValue");let l=Math.floor(n/4)*4,d=n%4,p=`
      if (${t==="sum"}) {
        sumValue += dot(values, ones);
      } else if (${t==="prod"}) {
        vec2 tmp = vec2(values[0], values[1]) * vec2(values[2], values[3]);
        prodValue *= tmp[0] * tmp[1];
      } else {
        minMaxValue = ${o}(values, minMaxValue);
        if (${t==="min"} || ${t==="max"}) {
          minMaxValue = ${o}(values, minMaxValue);
          bvec4 isNaN = isnan(values);
          if (isNaN.r || isNaN.g || isNaN.b || isNaN.a) {
            minMaxValue = vec4(NAN);
          }
        }
      }
    `,c="vec4";t==="all"?(i="1.0",p=`
        bool reducedAllValue = all(values);
        float floatedReducedAllValue = float(reducedAllValue);
        allValue = float(allValue >= 1.0 && floatedReducedAllValue >= 1.0);
      `,c="bvec4"):t==="any"&&(i="0.0",p=`
        bool reducedAnyValue = any(values);
        float floatedReducedAnyValue = float(reducedAnyValue);
        anyValue = float(anyValue >= 1.0 || floatedReducedAnyValue >= 1.0);
      `,c="bvec4");let h="";r%n>0&&(h=`
        if (inIdx < 0 || inIdx >= ${r}) {
          return initializationValue;
        }
      `),this.userCode=`
      const float initializationValue = ${i};
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float getValue(int batch, int inIdx) {
        ${h}
        return getX(batch, inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = outIdx * ${n};

        vec4 minMaxValue = vec4(${i});
        float prodValue = 1.0;
        float sumValue = 0.0;
        float allValue = 1.0;
        float anyValue = 0.0;

        for (int i = 0; i < ${l}; i += 4) {
          int inIdx = inOffset + i;
          ${c} values = ${c}(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          ${p}
        }

        int inIdx = inOffset + ${l};
        if (${d===1}) {
          ${c} values = ${c}(
            getValue(batch, inIdx),
            initializationValue,
            initializationValue,
            initializationValue
          );

          ${p}
        } else if (${d===2}) {
          ${c} values = ${c}(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            initializationValue,
            initializationValue
          );

          ${p}
        } else if (${d===3}) {
          ${c} values = ${c}(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            initializationValue
          );

          ${p}
        }
        setOutput(${u});
      }
    `}};function BV(e){let t=[];for(;t.length===0||t[t.length-1].outSize!==1;){let n=t.length?t[t.length-1].outSize:e[1],a=F.computeOptimalWindowSize(n);t.push({inSize:n,windowSize:a,outSize:Math.ceil(n/a)})}return t}function Wi(e,t,n,a){let r=BV(e.shape),s=e;for(let i=0;i<r.length;i++){let{inSize:o,windowSize:u,outSize:l}=r[i],d,p;n==="mean"?d=i===0?new Tw({windowSize:u,inSize:o,batchSize:e.shape[0],outSize:l},o):new Tw({windowSize:u,inSize:o,batchSize:e.shape[0],outSize:l}):d=new WV({windowSize:u,inSize:o,batchSize:e.shape[0],outSize:l},n),p=s,s=a.runWebGLProgram(d,[s],t),p.dataId!==e.dataId&&a.disposeIntermediateTensorInfo(p)}return s}var VV=class{constructor(e,t){this.variableNames=["A"];let n=new Array(e.length);for(let s=0;s<n.length;s++)n[s]=e[t[s]];this.outputShape=n,this.rank=n.length;let a=ut(this.rank),r=jV(t);this.userCode=`
    void main() {
      ${a} resRC = getOutputCoords();
      setOutput(getA(${r}));
    }
    `}};function jV(e){let t=e.length;if(t>6)throw Error(`Transpose for rank ${t} is not yet supported`);let n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],a=new Array(t);for(let r=0;r<e.length;r++)a[e[r]]=n[r];return a.join()}var UV=class{constructor(e,t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0;let n=new Array(e.length);for(let l=0;l<n.length;l++)n[l]=e[t[l]];if(this.outputShape=n,this.rank=n.length,this.rank>6)throw Error(`Packed transpose for rank ${this.rank} is not yet supported.`);let a=ut(this.rank),r=uw("rc",this.rank),s=new Array(this.rank);for(let l=0;l<t.length;l++)s[t[l]]=r[l];let i=`vec2(${s.slice(-2).join()})`,o=`++${r[this.rank-1]} < ${n[this.rank-1]}`,u=`getChannel(getA(${s.join()}), ${i})`;this.userCode=`
    void main() {
      ${a} rc = getOutputCoords();
      vec4 result = vec4(0.);
      result[0] = ${u};
      if(${o}) {
        result[1] = ${u};
      }
      --${r[this.rank-1]};
      if(++${r[this.rank-2]} < ${n[this.rank-2]}) {
        result[2] = ${u};
        if(${o}) {
          result[3] = ${u};
        }
      }
      setOutput(result);
    }
    `}};function Gh(e,t,n){let a=te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new UV(e.shape,t):new VV(e.shape,t);return n.runWebGLProgram(a,[e],e.dtype)}function HV(e,t,n,a){let r=t,s=e.shape.length,i=k.parseAxisParam(r,e.shape),o=i,u=F.getAxesPermutation(o,s),l=u!=null,d=e;l&&(d=Gh(e,u,a),o=F.getInnerMostAxes(o.length,s)),F.assertAxesAreInnerMostDims("sum",o,s);let[p,c]=F.computeOutAndReduceShapes(d.shape,o),h=p;n&&(h=F.expandShapeToKeepDim(p,i));let m=k.sizeFromShape(c),f=k.sizeFromShape(e.shape)/m,A=ye({inputs:{x:d},attrs:{shape:[f,m]},backend:a}),g=zc(e.dtype),y=Wi(A,g,"sum",a),x=ye({inputs:{x:y},attrs:{shape:h},backend:a});return a.disposeIntermediateTensorInfo(A),a.disposeIntermediateTensorInfo(y),l&&a.disposeIntermediateTensorInfo(d),x}function qh(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a;return HV(r,s,i,n)}var GV={kernelName:ii,backendName:"webgl",kernelFunc:qh};function xn(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{perm:s}=a,i=n,o=r.shape.length,u=new Array(o);for(let d=0;d<u.length;d++)u[d]=r.shape[s[d]];let l;if(i.shouldExecuteOnCPU([r])){let d=i.texData.get(r.dataId).values,p=HA(d,r.shape,r.dtype,s,u);l=i.makeTensorInfo(u,r.dtype);let c=i.texData.get(l.dataId);c.values=p}else l=Gh(r,s,i);return l}var qV={kernelName:ci,backendName:"webgl",kernelFunc:xn},Cw=1e3;function Xh({a:e,b:t,transposeA:n,transposeB:a,backend:r,bias:s=null,preluActivationWeights:i=null,leakyreluAlpha:o=0,activation:u=null}){let l=e.shape.length,d=t.shape.length,p=n?e.shape[l-2]:e.shape[l-1],c=a?t.shape[d-1]:t.shape[d-2],h=n?e.shape[l-1]:e.shape[l-2],m=a?t.shape[d-2]:t.shape[d-1],f=e.shape.slice(0,-2),A=t.shape.slice(0,-2),g=k.sizeFromShape(f),y=k.sizeFromShape(A),x=g===y||g===1||y===1;k.assert(l>=2&&d>=2&&x,()=>`Error in matMul: the input batch dimensions must either be the same or at least one input batch dimension must be 1. Got input batch dimensions of (${f}) and (${A}).`);let v=(g>y?e.shape.slice(0,-2):t.shape.slice(0,-2)).concat([h,m]);k.assert(p===c,()=>`Error in matMul: inner shapes (${p}) and (${c}) of Tensors with shapes ${e.shape} and ${t.shape} and transposeA=${n} and transposeB=${a} must match.`);let b=n?[g,p,h]:[g,h,p],w=a?[y,m,c]:[y,c,m],N=ye({inputs:{x:e},backend:r,attrs:{shape:b}}),C=ye({inputs:{x:t},backend:r,attrs:{shape:w}}),E=[N,C],_=Math.max(g,y),$=n?N.shape[1]:N.shape[2],S=s!=null,z=i!=null,O=u==="leakyrelu",W=u!=null?Hh(u,!0):null,G=S||z||O||W!=null,H;if((h===1||m===1)&&$>Cw&&G===!1){let K=N,ne=C;n&&(K=xn({inputs:{x:N},backend:r,attrs:{perm:[0,2,1]}}),E.push(K)),a&&(ne=xn({inputs:{x:C},backend:r,attrs:{perm:[0,2,1]}}),E.push(ne));let Q=m!==1,se=m===1,Z=K;Q&&(Z=ye({inputs:{x:K},backend:r,attrs:{shape:[_,$,1]}}),E.push(Z));let le=m===1?2:1,oe=ne;se&&(oe=ye({inputs:{x:ne},backend:r,attrs:{shape:[_,1,$]}}),E.push(oe));let xe=qA({inputs:{a:Z,b:oe},backend:r});H=qh({inputs:{x:xe},backend:r,attrs:{axis:le,keepDims:!0}}),E.push(xe)}else{let K=ya(e.dtype,t.dtype),ne=new kw(b,w,[_,h,m],n,a,S,W,z,O),Q=[N,C];if(s!=null&&Q.push(s),z&&Q.push(i),O){let se=r.makeTensorInfo([],"float32",k.createScalarValue(o,"float32"));Q.push(se),E.push(se)}H=r.runWebGLProgram(ne,Q,K)}let J=ye({inputs:{x:H},backend:r,attrs:{shape:v}});E.push(H);for(let K of E)r.disposeIntermediateTensorInfo(K);return J}function XV(e){let{inputs:t,backend:n,attrs:a}=e,{a:r,b:s,bias:i,preluActivationWeights:o}=t,{transposeA:u,transposeB:l,activation:d,leakyreluAlpha:p}=a;return Xh({a:r,b:s,transposeA:u,transposeB:l,backend:n,bias:i,preluActivationWeights:o,leakyreluAlpha:p,activation:d})}var KV={kernelName:hi,backendName:"webgl",kernelFunc:XV},Ew="return abs(x);";function ZV(e){let{inputs:t,backend:n}=e,{x:a}=t;if(n.shouldExecuteOnCPU([a])&&a.dtype!=="complex64"){let s=n.texData.get(a.dataId),i=ow(s.values);return n.makeTensorInfo(a.shape,a.dtype,i)}let r;return te().getBool("WEBGL_PACK_UNARY_OPERATIONS")?r=new ql(a.shape,Ew):r=new Yr(a.shape,Ew),n.runWebGLProgram(r,[a],a.dtype)}var YV={kernelName:fo,backendName:"webgl",kernelFunc:ZV},JV=Ca+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return acos(x);
`,QV=Ke({opSnippet:JV}),ej={kernelName:mo,backendName:"webgl",kernelFunc:QV},tj=Ca+`
  if (x < 1.0) return NAN;
return log(x + sqrt(x * x - 1.0));`,nj=Ke({opSnippet:tj}),aj={kernelName:Ao,backendName:"webgl",kernelFunc:nj},Rw="return a + b;",rj=rn({opSnippet:Rw,packedOpSnippet:Rw,supportsComplex:!0,cpuKernelImpl:AB}),sj={kernelName:Or,backendName:"webgl",kernelFunc:rj},ij=class{constructor(e,t){this.outputShape=[],this.outputShape=e,this.variableNames=t.map((r,s)=>`T${s}`);let n=[];this.variableNames.forEach(r=>{n.push(`float v${r} = get${r}AtOutCoords();`)});let a=this.variableNames.map(r=>`v${r}`).join(" + ");this.userCode=`
      void main() {
        ${n.join(`
        `)}

        float result = ${a};
        setOutput(result);
      }
    `}},oj=class{constructor(e,t){this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.variableNames=t.map((r,s)=>`T${s}`);let n=[];this.variableNames.forEach(r=>{n.push(`vec4 v${r} = get${r}AtOutCoords();`)});let a=this.variableNames.map(r=>`v${r}`).join(" + ");this.userCode=`
      void main() {
        ${n.join(`
        `)}

        vec4 result = ${a};
        setOutput(result);
      }
    `}};function Kh(e){let{inputs:t,backend:n}=e,a=t;if(a.length===1)return Xn({inputs:{x:a[0]},backend:n});if(a.length>te().get("WEBGL_MAX_TEXTURES_IN_SHADER")){let o=Math.floor(a.length/2),u=Kh({inputs:a.slice(0,o),backend:n}),l=Kh({inputs:a.slice(o),backend:n});return Kh({inputs:[u,l],backend:n})}let r=a.map(o=>o.dtype).reduce((o,u)=>ya(o,u)),s=a.map(o=>o.shape),i=te().getBool("WEBGL_PACK")?new oj(a[0].shape,s):new ij(a[0].shape,s);return n.runWebGLProgram(i,a,r)}var lj={kernelName:xs,backendName:"webgl",kernelFunc:Kh};function uj(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a,o=r.shape.length,u=k.parseAxisParam(s,r.shape),l=u,d=F.getAxesPermutation(l,o),p=r;d!=null&&(p=xn({inputs:{x:r},backend:n,attrs:{perm:d}}),l=F.getInnerMostAxes(l.length,o)),F.assertAxesAreInnerMostDims("all",l,o);let[c,h]=F.computeOutAndReduceShapes(p.shape,l),m=k.sizeFromShape(h),f=ye({inputs:{x:p},backend:n,attrs:{shape:[-1,m]}}),A=Wi(f,f.dtype,"all",n),g;if(i){let y=F.expandShapeToKeepDim(c,u);g=ye({inputs:{x:A},backend:n,attrs:{shape:y}})}else g=ye({inputs:{x:A},backend:n,attrs:{shape:c}});return n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(A),d!=null&&n.disposeIntermediateTensorInfo(p),g}var dj={kernelName:go,backendName:"webgl",kernelFunc:uj};function pj(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a,o=r.shape.length,u=k.parseAxisParam(s,r.shape),l=u,d=F.getAxesPermutation(l,o),p=r;d!=null&&(p=xn({inputs:{x:r},backend:n,attrs:{perm:d}}),l=F.getInnerMostAxes(l.length,o)),F.assertAxesAreInnerMostDims("any",l,o);let[c,h]=F.computeOutAndReduceShapes(p.shape,l),m=k.sizeFromShape(h),f=ye({inputs:{x:p},backend:n,attrs:{shape:[-1,m]}}),A=Wi(f,f.dtype,"any",n),g;if(i){let y=F.expandShapeToKeepDim(c,u);g=ye({inputs:{x:A},backend:n,attrs:{shape:y}})}else g=ye({inputs:{x:A},backend:n,attrs:{shape:c}});return n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(A),d!=null&&n.disposeIntermediateTensorInfo(p),g}var cj={kernelName:yo,backendName:"webgl",kernelFunc:pj},hj=class{constructor(e,t,n){this.variableNames=["A"];let{windowSize:a,batchSize:r,outSize:s}=e;n||this.variableNames.push("bestIndicesA"),this.outputShape=[r,s];let i=t==="max"?">":"<",o=n?"inOffset + i;":"round(getBestIndicesA(batch, inOffset + i));";this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = outIdx * ${a};

        int bestIndex = inOffset;
        float bestValue = getA(batch, bestIndex);

        for (int i = 0; i < ${a}; i++) {
          int inIdx = ${o};
          float candidate = getA(batch, inIdx);
          if (candidate ${i} bestValue) {
            bestValue = candidate;
            bestIndex = inIdx;
          }
        }
        setOutput(float(bestIndex));
      }
    `}},fj=class{constructor(e,t,n,a){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,k.assert(e.length>2,()=>`Packed arg${n.charAt(0).toUpperCase()+n.slice(1)} supports only inputs with rank above 2.`);let r=e[e.length-1],s=Math.ceil(r/t);this.outputShape=e.slice(0,-1),s>1&&this.outputShape.push(s),a||this.variableNames.push("bestIndicesA");let i=this.outputShape,o=i.length,u=ut(o),l=yn("coords",o),d,p;if(s===1){p=o+1;let N=ut(p);d=`
        ${N} sourceLocR = ${N}(${l.join()}, 0);
        ++${l[o-1]};
        ${N} sourceLocG = ${N}(${l.join()}, 0);
        ++${l[o-2]};
        ${N} sourceLocA = ${N}(${l.join()}, 0);
        --${l[o-1]};
        ${N} sourceLocB = ${N}(${l.join()}, 0);
        --${l[o-2]};`}else p=o,d=`
        ${u} sourceLocR = coords;
        ++${l[o-1]};
        ${u} sourceLocG = coords;
        ++${l[o-2]};
        ${u} sourceLocA = coords;
        --${l[o-1]};
        ${u} sourceLocB = coords;
        --${l[o-2]};`;let c=["x","y","z","w","u","v"].slice(0,p),h="."+c[p-1],m=c.map(N=>"int "+N),f=yn("sourceLocR",p-1).concat("inIdx.r"),A=yn("sourceLocG",p-1).concat("inIdx.g"),g=yn("sourceLocB",p-1).concat("inIdx.b"),y=yn("sourceLocA",p-1).concat("inIdx.a"),x=n==="max"?"greaterThan":"lessThan",v=a?"":`
          inIdx = round(vec4(getBestIndicesAChannel(${f.join()}),
                             getBestIndicesAChannel(${A.join()}),
                             getBestIndicesAChannel(${g.join()}),
                             getBestIndicesAChannel(${y.join()})));`,b=`vec4(
            getAChannel(${f.join()}),
            hasNextCol ? getAChannel(${A.join()}) : 0.,
            hasNextRow ? getAChannel(${g.join()}) : 0.,
            hasNextRow && hasNextCol ? getAChannel(${y.join()}) : 0.)`,w=a?"":`
      float getBestIndicesAChannel(${m.join()}) {
        return getChannel(getBestIndicesA(${c.join()}),
                                          vec2(${c.slice(-2).join()}));
      }`;this.userCode=`
      float getAChannel(${m.join()}) {
        return getChannel(getA(${c.join()}),
                               vec2(${c.slice(-2).join()}));
      }
      ${w}
      void main() {
        ${u} coords = getOutputCoords();
        bool hasNextCol = ${l[o-1]} < ${i[o-1]-1};
        bool hasNextRow = ${l[o-2]} < ${i[o-2]-1};
        ${d}
        ivec4 srcIdx = ivec4(sourceLocR${h}, sourceLocG${h},
          sourceLocB${h}, sourceLocA${h}) * ${t};
        ivec4 inIdx = srcIdx;
        vec4 bestIndex = vec4(inIdx);
        vec4 bestValue = ${b};

        for (int i = 0; i < ${t}; i++) {
          inIdx = srcIdx;
          ${v}
          vec4 candidate = ${b};
          bvec4 nan = isnan(candidate);
          bvec4 replace = bvec4(
            vec4(${x}(candidate, bestValue)) * (vec4(1.0) - vec4(nan)));

          bestValue = vec4(replace.x  ? candidate.x : bestValue.x,
                           replace.y  ? candidate.y : bestValue.y,
                           replace.z  ? candidate.z : bestValue.z,
                           replace.w  ? candidate.w : bestValue.w);
          bestIndex = mix(bestIndex, vec4(inIdx), vec4(replace));
          srcIdx++;
        }
        setOutput(bestIndex);
      }
    `}};function Mw(e,t,n,a=null){let r=t.shape[0],s=t.shape[1];a!=null&&(r=a.shape[0],s=a.shape[1]);let i=F.computeOptimalWindowSize(s),o={windowSize:i,inSize:s,batchSize:r,outSize:Math.ceil(s/i)},u=new hj(o,n,a==null),l=[t];a!=null&&l.push(a);let d=e.runWebGLProgram(u,l,"int32");if(d.shape[1]===1)return d;let p=Mw(e,t,n,d);return e.disposeIntermediateTensorInfo(d),p}function Fw(e,t,n,a=null){let r=a!=null?a.shape:t.shape,s=r[r.length-1],i=F.computeOptimalWindowSize(s),o=new fj(r,i,n,a==null),u=a==null?[t]:[t,a],l=e.runWebGLProgram(o,u,"int32");if(l.shape.length===t.shape.length){let d=Fw(e,t,n,l);return e.disposeIntermediateTensorInfo(l),d}return l}function $w(e,t,n,a){let r=[n];if(F.assertAxesAreInnerMostDims("arg"+a.charAt(0).toUpperCase()+a.slice(1),r,t.shape.length),!te().getBool("WEBGL_PACK_REDUCE")||t.shape.length<=2){let s=[],[i,o]=F.computeOutAndReduceShapes(t.shape,r),u=k.sizeFromShape(o),l=ye({inputs:{x:t},backend:e,attrs:{shape:[-1,u]}});s.push(l);let d=Mw(e,l,a);s.push(d);let p=ye({inputs:{x:d},backend:e,attrs:{shape:i}});return s.forEach(c=>e.disposeIntermediateTensorInfo(c)),p}return Fw(e,t,a)}function mj(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s}=a,i=k.parseAxisParam(s,r.shape),o=F.getAxesPermutation(i,r.shape.length),u=r,l=[];o!=null&&(u=xn({inputs:{x:r},backend:n,attrs:{perm:o}}),l.push(u),i=F.getInnerMostAxes(i.length,u.shape.length)),F.assertAxesAreInnerMostDims("argMax",[i[0]],u.shape.length);let d=$w(n,u,i[0],"max");return l.forEach(p=>n.disposeIntermediateTensorInfo(p)),d}var Aj={kernelName:bs,backendName:"webgl",kernelFunc:mj};function gj(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s}=a,i=k.parseAxisParam(s,r.shape),o=F.getAxesPermutation(i,r.shape.length),u=r,l=[];o!=null&&(u=xn({inputs:{x:r},backend:n,attrs:{perm:o}}),l.push(u),i=F.getInnerMostAxes(i.length,u.shape.length)),F.assertAxesAreInnerMostDims("argMin",[i[0]],u.shape.length);let d=$w(n,u,i[0],"min");return l.forEach(p=>n.disposeIntermediateTensorInfo(p)),d}var yj={kernelName:Fu,backendName:"webgl",kernelFunc:gj},xj=Ca+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return asin(x);
`,bj=Ke({opSnippet:xj}),vj={kernelName:xo,backendName:"webgl",kernelFunc:bj},wj=Ca+"return log(x + sqrt(x * x + 1.0));",kj=Ke({opSnippet:wj}),Ij={kernelName:bo,backendName:"webgl",kernelFunc:kj},Sj=Ca+`
  return atan(x);
`,Nj=Ke({opSnippet:Sj}),Tj={kernelName:vo,backendName:"webgl",kernelFunc:Nj},Cj=OV+`
  return atan(a, b);
`,Ej=`
  vec4 result = atan(a, b);
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+zV+`
  return result;
`,Rj=rn({opSnippet:Cj,packedOpSnippet:Ej}),Mj={kernelName:ko,backendName:"webgl",kernelFunc:Rj},Fj=Ca+`
  if ((x < -1.0) || (x > 1.0)) return NAN;
return (log(1.0 + x) - log(1.0 - x)) / 2.0;`,$j=Ke({opSnippet:Fj}),Dj={kernelName:wo,backendName:"webgl",kernelFunc:$j},Od=class{constructor(e,t,n,a=!1,r=!1){if(this.variableNames=["x"],t==="avg"&&n)throw new Error("Cannot compute positions for average pool.");let s=e.filterWidth,i=e.strideHeight,o=e.strideWidth,u=e.dilationHeight,l=e.dilationWidth,d=e.effectiveFilterHeight,p=e.effectiveFilterWidth,c=e.padInfo.top,h=e.padInfo.left;this.outputShape=e.outShape;let m=t==="avg",f=`((batch  * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + d`,A=`(xR * ${e.inWidth} + xC) * ${e.inChannels} + d`,g="0.0";if(m||(g="-1.0 / 1e-20"),n){let N=">=";this.userCode=`
        const ivec2 strides = ivec2(${i}, ${o});
        const ivec2 pads = ivec2(${c}, ${h});

        void main() {
          ivec4 coords = getOutputCoords();
          int batch = coords[0];
          int d = coords[3];

          ivec2 xRCCorner = coords.yz * strides - pads;
          int xRCorner = xRCCorner.x;
          int xCCorner = xRCCorner.y;

          // max/min x(?, ?, d) to get y(yR, yC, d).
          // ? = to be determined
          float minMaxValue = 0.0;
          float minMaxValueFound = 0.0;
          int minMaxPosition = 0;
          float avgValue = 0.0;

          for (int wR = 0; wR < ${d};
              wR += ${u}) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= ${e.inHeight}) {
              continue;
            }

            for (int wC = 0; wC < ${p};
                wC += ${l}) {
              int xC = xCCorner + wC;

              if (xC < 0 || xC >= ${e.inWidth}) {
                continue;
              }

              float value = getX(batch, xR, xC, d);

              // If a min / max value has already been found, use it. If not,
              // use the current value.
              float currMinMaxValue = mix(
                  value, minMaxValue, minMaxValueFound);
              if (value ${N} currMinMaxValue) {
                minMaxValue = value;
                minMaxValueFound = 1.0;
                minMaxPosition = ${a?r?f:A:`wR * ${p} + wC`};
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;return}let y="max",x=`${t}(${t}(${t}(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])`;t==="avg"&&(x="avgValue / count");let v=Math.floor(s/4)*4,b=s%4,w=`
      if (${m}) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = ${y}(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec2 strides = ivec2(${i}, ${o});
      const ivec2 pads = ivec2(${c}, ${h});
      const float initializationValue = ${g};
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float count = 0.0;

      float getValue(int batch, int xR, int xC, int d) {
        if (xC < 0 || xC >= ${e.inWidth}) {
          return initializationValue;
        }
        count += 1.0;
        return getX(batch, xR, xC, d);
      }

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d = coords[3];

        ivec2 xRCCorner = coords.yz * strides - pads;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // max/min x(?, ?, d) to get y(yR, yC, d).
        // ? = to be determined
        vec4 minMaxValue = vec4(${g});
        float avgValue = 0.0;
        count = 0.0;

        for (int wR = 0; wR < ${d};
            wR += ${u}) {
          int xR = xRCorner + wR;

          if (xR < 0 || xR >= ${e.inHeight}) {
            continue;
          }

          for (int wC = 0; wC < ${v}; wC += 4) {
            int xC = xCCorner + wC * ${l};

            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + ${l}, d),
              getValue(batch, xR, xC + 2 * ${l}, d),
              getValue(batch, xR, xC + 3 * ${l}, d)
            );

            ${w}
          }

          int xC = xCCorner + ${v};
          if (${b===1}) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              initializationValue,
              initializationValue,
              initializationValue
            );

            ${w}
          } else if (${b===2}) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + ${l}, d),
              initializationValue,
              initializationValue
            );

            ${w}
          } else if (${b===3}) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + ${l}, d),
              getValue(batch, xR, xC + 2 * ${l}, d),
              initializationValue
            );

            ${w}
          }
        }
        setOutput(${x});
      }
    `}},XA=class{constructor(e,t,n,a=!1,r=!1){if(this.variableNames=["x"],t==="avg"&&n)throw new Error("Cannot compute positions for average pool.");let s=e.filterWidth,i=e.strideDepth,o=e.strideHeight,u=e.strideWidth,l=e.dilationDepth,d=e.dilationHeight,p=e.dilationWidth,c=e.effectiveFilterDepth,h=e.effectiveFilterHeight,m=e.effectiveFilterWidth,f=e.padInfo.front,A=e.padInfo.top,g=e.padInfo.left;this.outputShape=e.outShape;let y=t==="avg",x="0.0";if(y||(x="-1.0 / 1e-20"),n){let E=">=";this.userCode=`
        const ivec3 strides =
            ivec3(${i}, ${o}, ${u});
        const ivec3 pads = ivec3(${f}, ${A}, ${g});

        void main() {
          ivec5 coords = getOutputCoords();
          int batch = coords.x;
          int ch = coords.u;

          ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
          int xDCorner = xCorner.x;
          int xRCorner = xCorner.y;
          int xCCorner = xCorner.z;

          // max/min x(?, ?, ?, ch) to get y(yD, yR, yC, ch).
          // ? = to be determined
          float minMaxValue = 0.0;
          float minMaxValueFound = 0.0;
          int minMaxPosition = 0;

          for (int wD = 0; wD < ${c};
              wD += ${l}) {
            int xD = xDCorner + wD;

            if (xD < 0 || xD >= ${e.inDepth}) {
              continue;
            }

            for (int wR = 0; wR < ${h};
                wR += ${d}) {
              int xR = xRCorner + wR;

              if (xR < 0 || xR >= ${e.inHeight}) {
                continue;
              }

              for (int wC = 0; wC < ${m};
                  wC += ${p}) {
                int xC = xCCorner + wC;

                if (xC < 0 || xC >= ${e.inWidth}) {
                  continue;
                }

                float value = getX(batch, xD, xR, xC, ch);

                // If a min / max value has already been found, use it. If not,
                // use the current value.
                float currMinMaxValue = mix(
                    value, minMaxValue, minMaxValueFound);
                if (value ${E} currMinMaxValue) {
                  minMaxValue = value;
                  minMaxValueFound = 1.0;
                  minMaxPosition = ${a?r?`(((batch * ${e.inDepth} + xD) * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + ch`:`((xD * ${e.inHeight} + xR) * ${e.inWidth} + xC) * ${e.inChannels} + ch`:`wD * ${h} * ${m} +
                      wR * ${m} + wC`};
                }
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;return}let v="max",b=`${t}(${t}(${t}(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])`;t==="avg"&&(b="avgValue / count");let w=Math.floor(s/4)*4,N=s%4,C=`
      if (${y}) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = ${v}(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec3 strides =
        ivec3(${i}, ${o}, ${u});
      const ivec3 pads = ivec3(${f}, ${A}, ${g});
      const float initializationValue = ${x};
      const vec4 ones = vec4(1.0, 1.0, 1.0, 1.0);

      float count = 0.0;

      float getValue(int batch, int xD, int xR, int xC, int ch) {
        if (xC < 0 || xC >= ${e.inWidth}) {
          return initializationValue;
        }
        count += 1.0;
        return getX(batch, xD, xR, xC, ch);
      }

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 xCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
        int xDCorner = xCorner.x;
        int xRCorner = xCorner.y;
        int xCCorner = xCorner.z;

        // max/min x(?, ?, ?, d) to get y(yD, yR, yC, ch).
        // ? = to be determined
        vec4 minMaxValue = vec4(${x});
        float avgValue = 0.0;
        count = 0.0;

        for (int wD = 0; wD < ${c};
            wD += ${l}) {
          int xD = xDCorner + wD;

          if (xD < 0 || xD >= ${e.inDepth}) {
            continue;
          }

          for (int wR = 0; wR < ${h};
            wR += ${d}) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= ${e.inHeight}) {
              continue;
            }

            for (int wC = 0; wC < ${w}; wC += 4) {
              int xC = xCCorner + wC * ${p};

              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + ${p}, ch),
                getValue(batch, xD, xR, xC + 2 * ${p}, ch),
                getValue(batch, xD, xR, xC + 3 * ${p}, ch)
              );

              ${C}
            }

            int xC = xCCorner + ${w};
            if (${N===1}) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                initializationValue,
                initializationValue,
                initializationValue
              );

              ${C}
            } else if (${N===2}) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + ${p}, ch),
                initializationValue,
                initializationValue
              );

              ${C}
            } else if (${N===3}) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + ${p}, ch),
                getValue(batch, xD, xR, xC + 2 * ${p}, ch),
                initializationValue
              );

              ${C}
            }
          }
          setOutput(${b});
        }
      }
    `}};function Oj(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t;Vl(r,"avgPool");let{filterSize:s,strides:i,pad:o,dimRoundingMode:u}=a,l=1;k.assert(F.eitherStridesOrDilationsAreOne(i,l),()=>`Error in avgPool: Either strides or dilations must be 1. Got strides ${i} and dilations '${l}'`);let d=F.computePool2DInfo(r.shape,s,i,l,o,u);if(d.filterWidth===1&&d.filterHeight===1&&k.arraysEqual(d.inShape,d.outShape))return Xn({inputs:{x:r},backend:n});let p=new Od(d,"avg",!1);return n.runWebGLProgram(p,[r],"float32")}var zj={kernelName:vs,backendName:"webgl",kernelFunc:Oj};function _j(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{filterSize:s,strides:i,pad:o,dimRoundingMode:u,dataFormat:l}=a,d=[1,1,1],p=F.computePool3DInfo(r.shape,s,i,d,o,u,l),c=new XA(p,"avg",!1);return n.runWebGLProgram(c,[r],"float32")}var Pj={kernelName:$u,backendName:"webgl",kernelFunc:_j},Lj=class{constructor(e){this.variableNames=["dy"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,a=e.strideHeight,r=e.strideWidth,s=e.dilationHeight,i=e.dilationWidth,o=e.effectiveFilterHeight,u=e.effectiveFilterWidth,l=o-1-e.padInfo.top,d=u-1-e.padInfo.left,p=1/(t*n);this.userCode=`
      const ivec2 pads = ivec2(${l}, ${d});
      const float avgMultiplier = float(${p});

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];

        ivec2 dyRCCorner = coords.yz - pads;
        int dyRCorner = dyRCCorner.x;
        int dyCCorner = dyRCCorner.y;

        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < ${o};
            wR += ${s}) {
          float dyR = float(dyRCorner + wR) / ${a}.0;

          if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < ${u};
            wC+= ${i}) {
            float dyC = float(dyCCorner + wC) / ${r}.0;

            if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            float dyValue = getDy(b, idyR, idyC, d);

            dotProd += dyValue * avgMultiplier;
          }
        }
        setOutput(dotProd);
      }
    `}},Wj=class{constructor(e){this.variableNames=["dy"],this.outputShape=e.inShape;let t=e.filterDepth,n=e.filterHeight,a=e.filterWidth,r=e.strideDepth,s=e.strideHeight,i=e.strideWidth,o=e.dilationDepth,u=e.dilationHeight,l=e.dilationWidth,d=e.effectiveFilterDepth,p=e.effectiveFilterHeight,c=e.effectiveFilterWidth,h=d-1-e.padInfo.front,m=p-1-e.padInfo.top,f=c-1-e.padInfo.left,A=1/(t*n*a);this.userCode=`
      const ivec3 pads = ivec3(${h}, ${m}, ${f});
      const float avgMultiplier = float(${A});

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyDCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        // Convolve dy(?, ?, ?, d) with pos mask(:, :, :, ch) to get
        // dx(xD, xR, xC, ch).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int wD = 0; wD < ${d};
            wD += ${o}) {
          float dyD = float(dyDCorner + wD) / ${r}.0;

          if (dyD < 0.0 || dyD >= ${e.outDepth}.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < ${p};
              wR += ${u}) {
            float dyR = float(dyRCorner + wR) / ${s}.0;

            if (dyR < 0.0 || dyR >= ${e.outHeight}.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < ${c};
                wC += ${l}) {
              float dyC = float(dyCCorner + wC) / ${i}.0;

              if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              float dyValue = getDy(batch, idyD, idyR, idyC, ch);

              dotProd += dyValue * avgMultiplier;
            }
          }
        }
        setOutput(dotProd);
      }
    `}};function Bj(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s}=t,i=s,{filterSize:o,strides:u,pad:l,dimRoundingMode:d}=a,p=[1,1,1],c=F.computePool3DInfo(i.shape,o,u,p,l,d),h=new Wj(c);return n.runWebGLProgram(h,[r],i.dtype)}var Vj={kernelName:Kp,backendName:"webgl",kernelFunc:Bj};function jj(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s}=t,i=s;Vl([r,s],"avgPoolGrad");let{filterSize:o,strides:u,pad:l}=a,d=F.computePool2DInfo(i.shape,o,u,1,l),p=new Lj(d);return n.runWebGLProgram(p,[r],i.dtype)}var Uj={kernelName:Xp,backendName:"webgl",kernelFunc:jj};function Hj(e){let{inputs:t,backend:n,attrs:a}=e,{a:r,b:s}=t,{transposeA:i,transposeB:o}=a;return Xh({a:r,b:s,transposeA:i,transposeB:o,backend:n})}var Gj={kernelName:ws,backendName:"webgl",kernelFunc:Hj},qj=class{constructor(e,t,n,a,r,s){this.outputShape=[],this.variableNames=["x","mean","variance"],F.assertAndGetBroadcastShape(e,t),F.assertAndGetBroadcastShape(e,n);let i="0.0";a!=null&&(F.assertAndGetBroadcastShape(e,a),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");let o="1.0";r!=null&&(F.assertAndGetBroadcastShape(e,r),this.variableNames.push("scale"),o="getScaleAtOutCoords()"),this.outputShape=e,this.userCode=`
      void main() {
        float x = getXAtOutCoords();
        float mean = getMeanAtOutCoords();
        float variance = getVarianceAtOutCoords();
        float offset = ${i};
        float scale = ${o};
        float inv = scale * inversesqrt(variance + float(${s}));
        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));
      }
    `}},Xj=class{constructor(e,t,n,a,r,s){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],F.assertAndGetBroadcastShape(e,t),F.assertAndGetBroadcastShape(e,n);let i="vec4(0.0)";a!=null&&(F.assertAndGetBroadcastShape(e,a),this.variableNames.push("offset"),i="getOffsetAtOutCoords()");let o="vec4(1.0)";r!=null&&(F.assertAndGetBroadcastShape(e,r),this.variableNames.push("scale"),o="getScaleAtOutCoords()"),this.outputShape=e,this.userCode=`
      void main() {
        vec4 offset = ${i};
        vec4 scale = ${o};

        vec4 x = getXAtOutCoords();
        vec4 mean = getMeanAtOutCoords();
        vec4 variance = getVarianceAtOutCoords();

        vec4 inv = scale * inversesqrt(variance + vec4(${s}));

        setOutput((x - mean) * inv + offset);
      }
    `}},Kj=({inputs:e,backend:t,attrs:n})=>{let{x:a,mean:r,variance:s,offset:i,scale:o}=e;k.assert(r.shape.length===s.shape.length,()=>"Batch normalization gradient requires mean and variance to have equal ranks."),k.assert(i==null||r.shape.length===i.shape.length,()=>"Batch normalization gradient requires mean and offset to have equal ranks."),k.assert(o==null||r.shape.length===o.shape.length,()=>"Batch normalization gradient requires mean and scale to have equal ranks.");let{varianceEpsilon:u}=n;u==null&&(u=.001);let l=[a,r,s],d=null;i!=null&&(d=i.shape,l.push(i));let p=null;o!=null&&(p=o.shape,l.push(o));let c=te().getBool("WEBGL_PACK_NORMALIZATION")?new Xj(a.shape,r.shape,s.shape,d,p,u):new qj(a.shape,r.shape,s.shape,d,p,u);return t.runWebGLProgram(c,l,l[0].dtype)},Zj={kernelName:Ds,backendName:"webgl",kernelFunc:Kj},Yj=class{constructor(e){this.variableNames=["source"],this.outputShape=e,this.rank=e.length;let t=ut(this.rank),n=`uniform int start[${this.rank}];`,a=Jj(this.rank),r,s=e.map((i,o)=>`sourceLoc.${KA[o]} = start[${o}] + coords.${KA[o]};`);r=`
        ${t} sourceLoc;
        ${t} coords = getOutputCoords();
        ${s.join(`
`)}
      `,this.userCode=`
      ${n}
      void main() {
        ${r}
        setOutput(getSource(${a}));
      }
    `}getCustomSetupFunc(e){if(e.length!==this.rank)throw Error(`The rank (${this.rank}) of the program must match the length of start (${e.length})`);return(t,n)=>{this.startLoc==null&&(this.startLoc=t.getUniformLocationNoThrow(n,"start"),this.startLoc==null)||t.gl.uniform1iv(this.startLoc,e)}}},KA=["x","y","z","w","u","v"];function Jj(e){if(e===1)return"sourceLoc";if(e<=6)return KA.slice(0,e).map(t=>"sourceLoc."+t).join(",");throw Error(`Slicing for rank ${e} is not yet supported`)}var Qj=class{constructor(e){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.rank=e.length;let t=ut(this.rank),n=yn("coords",this.rank),a=yn("sourceLoc",this.rank),r=this.rank===1?"sourceLoc":`vec2(${a.slice(-2).join()})`,s=`getChannel(getSource(${a.join()}), ${r})`,i=`
      result.x = ${s};
      if (++${n[this.rank-1]} < ${e[this.rank-1]}) {
        ++${a[this.rank-1]};
        result.y = ${s};
        --${a[this.rank-1]};
      }
    `,o=this.rank===1?"":`
      --${n[this.rank-1]};
      if (++${n[this.rank-2]} < ${e[this.rank-2]}) {
        ++${a[this.rank-2]};
        result.z = ${s};
        if (++${n[this.rank-1]} < ${e[this.rank-1]}) {
          ++${a[this.rank-1]};
          result.w = ${s};
        }
      }
    `,u=this.rank<=4?`sourceLoc = coords +
            ${t}(${e.map((l,d)=>`start[${d}]`).join()});`:e.map((l,d)=>`${a[d]} = ${n[d]} + start[${d}];`).join(`
`);this.userCode=`
      uniform int start[${this.rank}];
      void main() {
        ${t} coords = getOutputCoords();
        ${t} sourceLoc;
        ${u}
        vec4 result = vec4(0.);
        ${i}
        ${o}
        setOutput(result);
      }
    `}getCustomSetupFunc(e){if(e.length!==this.rank)throw Error(`The rank (${this.rank}) of the program must match the length of start (${e.length})`);return(t,n)=>{this.startLoc==null&&(this.startLoc=t.getUniformLocationNoThrow(n,"start"),this.startLoc==null)||t.gl.uniform1iv(this.startLoc,e)}}};function eU(e,t,n,a){let r=a.texData.get(e.dataId),s=a.makeTensorInfo(n,e.dtype),i=a.texData.get(s.dataId);Object.assign(i,r),i.refCount=1,i.shape=n,i.dtype=e.dtype;let o=hn.computeFlatOffset(t,k.computeStrides(e.shape));r.slice&&(o+=r.slice.flatOffset),i.slice={flatOffset:o,origDataId:r.slice&&r.slice.origDataId||e.dataId};let u=a.dataRefCount.get(i.slice.origDataId)||1;return a.dataRefCount.set(i.slice.origDataId,u+1),s}function zd(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{begin:s,size:i}=a,[o,u]=hn.parseSliceParams(r,s,i);if(hn.assertParamsValid(r,o,u),k.sizeFromShape(u)===0)return n.makeTensorInfo(u,r.dtype,[]);if(n.shouldExecuteOnCPU([r])||r.dtype==="string"){let p=n.texData.get(r.dataId),c=BB(p.values,o,u,r.shape,r.dtype);return n.makeTensorInfo(u,r.dtype,c)}let{isPacked:l}=n.texData.get(r.dataId),d=hn.isSliceContinous(r.shape,o,u);if(l||!d){let p=te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Qj(u):new Yj(u),c=p.getCustomSetupFunc(o);return n.runWebGLProgram(p,[r],r.dtype,c)}return n.uploadToGPU(r.dataId),eU(r,o,u,n)}var tU={kernelName:rl,backendName:"webgl",kernelFunc:zd},nU=e=>{let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{blockShape:s,crops:i}=a;k.assert(r.shape.length<=4,()=>"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet");let o=s.reduce((y,x)=>y*x),u=F.getReshaped(r.shape,s,o),l=F.getPermuted(u.length,s.length),d=F.getReshapedPermuted(r.shape,s,o),p=F.getSliceBeginCoords(i,s.length),c=F.getSliceSize(d,i,s.length),h=[],m=ye({inputs:{x:r},backend:n,attrs:{shape:u}}),f=xn({inputs:{x:m},backend:n,attrs:{perm:l}}),A=ye({inputs:{x:f},backend:n,attrs:{shape:d}}),g=zd({inputs:{x:A},backend:n,attrs:{begin:p,size:c}});return h.push(m),h.push(f),h.push(A),h.forEach(y=>n.disposeIntermediateTensorInfo(y)),g},aU={kernelName:Du,backendName:"webgl",kernelFunc:nU};function rU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,weights:s}=t,{size:i}=a,o=n.readSync(r.dataId),u=n.readSync(s.dataId),l=iw(o,u,s.dtype,s.shape,i);return n.makeTensorInfo([i],s.dtype,l)}var sU={kernelName:Zp,backendName:"webgl",kernelFunc:rU},iU="return float(a != b);",Dw=rn({opSnippet:iU,cpuKernelImpl:_B,dtype:"bool"}),oU={kernelName:Go,backendName:"webgl",kernelFunc:Dw};function _d(e){let{inputs:t,backend:n}=e,{input:a}=t,r=n.texData.get(a.dataId);return Xn({inputs:{x:r.complexTensorInfos.real},backend:n})}var lU={kernelName:yc,backendName:"webgl",kernelFunc:_d},uU="return float(int(x));";function dU(e,t){let n=new Yr(e.shape,uU),a=t.runWebGLProgram(n,[e],"int32");return{dataId:a.dataId,shape:a.shape,dtype:a.dtype}}function ZA(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{dtype:s}=a;if(s==="complex64"){if(r.dtype==="complex64")return Xn({inputs:{x:r},backend:n});let i=$t(r.shape),o=ZA({inputs:{x:r},backend:n,attrs:{dtype:"float32"}}),u=Jr({inputs:{real:o,imag:i},backend:n});return i.dispose(),n.disposeIntermediateTensorInfo(o),u}if(r.dtype==="complex64"){let i=_d({inputs:{input:r},backend:n}),o=ZA({inputs:{x:i},backend:n,attrs:{dtype:s}});return n.disposeIntermediateTensorInfo(i),o}if(!k.hasEncodingLoss(r.dtype,s)){let i=Xn({inputs:{x:r},backend:n});return{dataId:i.dataId,shape:i.shape,dtype:s}}if(s==="int32")return dU(r,n);if(s==="bool"){let i=n.makeTensorInfo([],"bool",k.getTypedArrayFromDType("bool",1)),o=Dw({inputs:{a:r,b:i},backend:n});return n.disposeIntermediateTensorInfo(i),o}throw new Error(`Error in Cast: failed to cast ${r.dtype} to ${s}`)}var pU={kernelName:ks,backendName:"webgl",kernelFunc:ZA},Ow="return ceil(x);",cU=Ke({opSnippet:Ow,packedOpSnippet:Ow,cpuKernelImpl:yB}),hU={kernelName:Is,backendName:"webgl",kernelFunc:cU},fU=class{constructor(e){this.variableNames=["A"],this.outputShape=e,this.userCode=`
      uniform float minVal;
      uniform float maxVal;

      void main() {
        float value = getAAtOutCoords();
        if (isnan(value)) {
          setOutput(value);
          return;
        }

        setOutput(clamp(value, minVal, maxVal));
      }
    `}getCustomSetupFunc(e,t){return(n,a)=>{this.minLoc==null&&(this.minLoc=n.getUniformLocationNoThrow(a,"minVal"),this.maxLoc=n.getUniformLocationNoThrow(a,"maxVal")),n.gl.uniform1f(this.minLoc,e),n.gl.uniform1f(this.maxLoc,t)}}},mU=class{constructor(e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e,this.userCode=`
      uniform float minVal;
      uniform float maxVal;

      void main() {
        vec4 value = getAAtOutCoords();

        if (any(isnan(value))) {
          setOutput(value);
          return;
        }

        setOutput(clamp(value, vec4(minVal), vec4(maxVal)));
      }
    `}getCustomSetupFunc(e,t){return(n,a)=>{this.minLoc==null&&(this.minLoc=n.getUniformLocationNoThrow(a,"minVal"),this.maxLoc=n.getUniformLocationNoThrow(a,"maxVal")),n.gl.uniform1f(this.minLoc,e),n.gl.uniform1f(this.maxLoc,t)}}};function AU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{clipValueMin:s,clipValueMax:i}=a,o;te().getBool("WEBGL_PACK_CLIP")?o=new mU(r.shape):o=new fU(r.shape);let u=o.getCustomSetupFunc(s,i);return n.runWebGLProgram(o,[r],r.dtype,u)}var gU={kernelName:zr,backendName:"webgl",kernelFunc:AU},yU=class{constructor(e){this.variableNames=["real","imag"],this.outputShape=e,this.userCode=`
      void main() {
        float re = abs(getRealAtOutCoords());
        float im = abs(getImagAtOutCoords());
        float mx = max(re, im);

        // sadly the length function in glsl is not underflow-safe
        // (at least not on Intel GPUs). So the safe solution is
        // to ensure underflow-safety in all cases.
        setOutput(
          mx == 0.0 ? 0.0 : mx * length(vec2(1, min(re, im)/mx))
        );
      }
    `}};function zw(e,t){return{dataId:t.dataId,dtype:t.dtype,shape:e.shape}}function xU(e){let{inputs:t,backend:n}=e,{x:a}=t,r=n.texData.get(a.dataId),s=new yU(a.shape),i=[zw(a,r.complexTensorInfos.real),zw(a,r.complexTensorInfos.imag)];return n.runWebGLProgram(s,i,i[0].dtype)}var bU={kernelName:Ou,backendName:"webgl",kernelFunc:xU},vU=class{constructor(e){this.outputShape=[],this.outputShape=F.computeOutShape(e,1),this.variableNames=e.map((s,i)=>`T${i}`);let t=new Array(e.length-1);t[0]=e[0][1];for(let s=1;s<t.length;s++)t[s]=t[s-1]+e[s][1];let n=[`if (yC < ${t[0]}) setOutput(getT0(yR, yC));`];for(let s=1;s<t.length;s++){let i=t[s-1];n.push(`else if (yC < ${t[s]}) setOutput(getT${s}(yR, yC-${i}));`)}let a=t.length,r=t[t.length-1];n.push(`else setOutput(getT${a}(yR, yC-${r}));`),this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int yR = coords.x;
        int yC = coords.y;

        ${n.join(`
        `)}
      }
    `}},wU=class{constructor(e,t){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=F.computeOutShape(e,t);let n=this.outputShape,a=n.length,r=ut(a),s=yn("coords",a),i=["x","y","z","w","u","v"].slice(0,a);this.variableNames=e.map((m,f)=>`T${f}`);let o=new Array(e.length-1);o[0]=e[0][t];for(let m=1;m<o.length;m++)o[m]=o[m-1]+e[m][t];let u=i[t],l=i.slice(-2),d=i.join(),p=`if (${u} < ${o[0]}) {
        return getChannel(
            getT0(${d}), vec2(${l.join()}));
        }`;for(let m=1;m<o.length;m++){let f=o[m-1];p+=`
        if (${u} < ${o[m]}  && ${u} >= ${o[m-1]}) {
          return getChannel(
            getT${m}(${Zh(i,u,f)}),
            vec2(${Zh(l,u,f)}));
        }`}let c=o.length,h=o[o.length-1];p+=`
        return getChannel(
          getT${c}(${Zh(i,u,h)}),
          vec2(${Zh(l,u,h)}));`,this.userCode=`
      float getValue(${i.map(m=>"int "+m)}) {
        ${p}
      }

      void main() {
        ${r} coords = getOutputCoords();
        vec4 result = vec4(getValue(${s}), 0., 0., 0.);

        ${s[a-1]} = ${s[a-1]} + 1;
        if (${s[a-1]} < ${n[a-1]}) {
          result.g = getValue(${s});
        }

        ${s[a-2]} = ${s[a-2]} + 1;
        if (${s[a-2]} < ${n[a-2]}) {
          result.a = getValue(${s});
        }

        ${s[a-1]} = ${s[a-1]} - 1;
        if (${s[a-2]} < ${n[a-2]} &&
            ${s[a-1]} < ${n[a-1]}) {
          result.b = getValue(${s});
        }
        setOutput(result);
      }
    `}};function Zh(e,t,n){let a=e.indexOf(t);return e.map((r,s)=>s===a?`${r} - ${n}`:r).join()}function Yh(e){let{inputs:t,backend:n}=e,{input:a}=t,r=n.texData.get(a.dataId);return Xn({inputs:{x:r.complexTensorInfos.imag},backend:n})}var kU={kernelName:pc,backendName:"webgl",kernelFunc:Yh};function Zl(e,t,n){let a=e[0].dtype;if(a==="complex64"){let d=e.map(f=>_d({inputs:{input:f},backend:n})),p=e.map(f=>Yh({inputs:{input:f},backend:n})),c=Zl(d,t,n),h=Zl(p,t,n),m=Jr({inputs:{real:c,imag:h},backend:n});return d.forEach(f=>n.disposeIntermediateTensorInfo(f)),p.forEach(f=>n.disposeIntermediateTensorInfo(f)),n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(h),m}let r=n.shouldExecuteOnCPU(e);if(a==="string"&&(r=!0),r){let d=e.map(g=>{let y=k.sizeFromShape(g.shape.slice(t));return ye({inputs:{x:g},backend:n,attrs:{shape:[-1,y]}})}),p=d.map(g=>({vals:n.readSync(g.dataId),shape:g.shape})),c=F.computeOutShape(d.map(g=>g.shape),1),h=d[0].shape[0]===1,m=xB(p,c,a,h),f=F.computeOutShape(e.map(g=>g.shape),t),A=n.makeTensorInfo(f,a,m);return d.forEach(g=>n.disposeIntermediateTensorInfo(g)),A}if(e.length>te().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){let d=Math.floor(e.length/2),p=Zl(e.slice(0,d),t,n),c=Zl(e.slice(d),t,n),h=Zl([p,c],t,n);return n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(c),h}if(te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&e[0].shape.length>1){let d=new wU(e.map(p=>p.shape),t);return n.runWebGLProgram(d,e,a)}let{tensors2D:s,outShape:i}=IU(e,t,n),o=new vU(s.map(d=>d.shape)),u=n.runWebGLProgram(o,s,a);s.forEach(d=>n.disposeIntermediateTensorInfo(d));let l=ye({inputs:{x:u},attrs:{shape:i},backend:n});return n.disposeIntermediateTensorInfo(u),l}function IU(e,t,n){let a=F.computeOutShape(e.map(r=>r.shape),t);return{tensors2D:e.map(r=>ye({inputs:{x:r},attrs:{shape:[-1,k.sizeFromShape(r.shape.slice(t))]},backend:n})),outShape:a}}function _w(e){let{inputs:t,backend:n,attrs:a}=e,{axis:r}=a,s=k.parseAxisParam(r,t[0].shape)[0],i=F.computeOutShape(t.map(l=>l.shape),s);if(k.sizeFromShape(i)===0)return n.makeTensorInfo(i,t[0].dtype,[]);let o=t.filter(l=>k.sizeFromShape(l.shape)>0);if(o.length===1)return Xn({inputs:{x:o[0]},backend:n});let u=o.map(l=>l.shape);return F.assertParamsConsistent(u,s),Zl(o,s,n)}var SU={kernelName:Io,backendName:"webgl",kernelFunc:_w},Pw=class{constructor(e,t=!1,n=null,a=!1,r=!1){this.variableNames=["x","W"],this.outputShape=e.outShape;let s=e.padInfo.top,i=e.padInfo.left,o=e.strideHeight,u=e.strideWidth,l=e.dilationHeight,d=e.dilationWidth,p=e.filterHeight,c=e.filterWidth,h=Math.floor(e.inChannels/4)*4,m=e.inChannels%4,f=e.dataFormat==="channelsLast",A=f?1:2,g=f?2:3,y=f?3:1,x="",v="";n&&(a?x=`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          ${n}
        }`:r?x=`float activation(float a) {
          float b = getLeakyreluAlphaAtOutCoords();
          ${n}
        }`:x=`
          float activation(float x) {
            ${n}
          }
        `,v="result = activation(result);");let b=t?"result += getBiasAtOutCoords();":"";t&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),r&&this.variableNames.push("leakyreluAlpha"),this.userCode=`
      ${x}

      const ivec2 strides = ivec2(${o}, ${u});
      const ivec2 pads = ivec2(${s}, ${i});

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d2 = coords[${y}];

        ivec2 xRCCorner =
            ivec2(coords[${A}], coords[${g}]) * strides - pads;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // Convolve x(?, ?, d1) with w(:, :, d1, d2) to get y(yR, yC, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < ${p}; wR++) {
          int xR = xRCorner + wR * ${l};

          if (xR < 0 || xR >= ${e.inHeight}) {
            continue;
          }

          for (int wC = 0; wC < ${c}; wC++) {
            int xC = xCCorner + wC * ${d};

            if (xC < 0 || xC >= ${e.inWidth}) {
              continue;
            }

            for (int d1 = 0; d1 < ${h}; d1 += 4) {
              vec4 wValues = vec4(
                getW(wR, wC, d1, d2),
                getW(wR, wC, d1 + 1, d2),
                getW(wR, wC, d1 + 2, d2),
                getW(wR, wC, d1 + 3, d2)
              );

              if (${f}) {
                vec4 xValues = vec4(
                  getX(batch, xR, xC, d1),
                  getX(batch, xR, xC, d1 + 1),
                  getX(batch, xR, xC, d1 + 2),
                  getX(batch, xR, xC, d1 + 3)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec4 xValues = vec4(
                  getX(batch, d1, xR, xC),
                  getX(batch, d1 + 1, xR, xC),
                  getX(batch, d1 + 2, xR, xC),
                  getX(batch, d1 + 3, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }
            }

            if (${m===1}) {

              if (${f}) {
                dotProd +=
                    getX(batch, xR, xC, ${h}) *
                    getW(wR, wC, ${h}, d2);
              } else {
                dotProd +=
                    getX(batch, ${h}, xR, xC) *
                    getW(wR, wC, ${h}, d2);
              }

            } else if (${m===2}) {
              vec2 wValues = vec2(
                getW(wR, wC, ${h}, d2),
                getW(wR, wC, ${h} + 1, d2)
              );

              if (${f}) {
                vec2 xValues = vec2(
                  getX(batch, xR, xC, ${h}),
                  getX(batch, xR, xC, ${h} + 1)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec2 xValues = vec2(
                  getX(batch, ${h}, xR, xC),
                  getX(batch, ${h} + 1, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            } else if (${m===3}) {
              vec3 wValues = vec3(
                getW(wR, wC, ${h}, d2),
                getW(wR, wC, ${h} + 1, d2),
                getW(wR, wC, ${h} + 2, d2)
              );

              if (${f}) {
                vec3 xValues = vec3(
                  getX(batch, xR, xC, ${h}),
                  getX(batch, xR, xC, ${h} + 1),
                  getX(batch, xR, xC, ${h} + 2)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec3 xValues = vec3(
                  getX(batch, ${h}, xR, xC),
                  getX(batch, ${h} + 1, xR, xC),
                  getX(batch, ${h} + 2, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            }
          }
        }

        float result = dotProd;
        ${b}
        ${v}
        setOutput(result);
      }
    `}},NU=class{constructor(e){this.variableNames=["x","W"],this.outputShape=e.outShape;let t=e.padInfo.front,n=e.padInfo.top,a=e.padInfo.left,r=e.strideDepth,s=e.strideHeight,i=e.strideWidth,o=e.dilationDepth,u=e.dilationHeight,l=e.dilationWidth,d=e.filterDepth,p=e.filterHeight,c=e.filterWidth,h=Math.floor(e.inChannels/4)*4,m=e.inChannels%4;this.userCode=`
      const ivec3 strides = ivec3(${r}, ${s}, ${i});
      const ivec3 pads = ivec3(${t}, ${n}, ${a});

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int d2 = coords.u;

        ivec3 xFRCCorner = ivec3(coords.y, coords.z, coords.w) * strides - pads;
        int xFCorner = xFRCCorner.x;
        int xRCorner = xFRCCorner.y;
        int xCCorner = xFRCCorner.z;

        // Convolve x(?, ?, ?, d1) with w(:, :, :, d1, d2) to get
        // y(yF, yR, yC, d2). ? = to be determined. : = across all
        // values in that axis.
        float dotProd = 0.0;
        for (int wF = 0; wF < ${d}; wF++) {
          int xF = xFCorner + wF * ${o};

          if (xF < 0 || xF >= ${e.inDepth}) {
            continue;
          }

          for (int wR = 0; wR < ${p}; wR++) {
            int xR = xRCorner + wR * ${u};

            if (xR < 0 || xR >= ${e.inHeight}) {
              continue;
            }

            for (int wC = 0; wC < ${c}; wC++) {
              int xC = xCCorner + wC * ${l};

              if (xC < 0 || xC >= ${e.inWidth}) {
                continue;
              }

              for (int d1 = 0; d1 < ${h}; d1 += 4) {
                vec4 xValues = vec4(
                  getX(batch, xF, xR, xC, d1),
                  getX(batch, xF, xR, xC, d1 + 1),
                  getX(batch, xF, xR, xC, d1 + 2),
                  getX(batch, xF, xR, xC, d1 + 3)
                );
                vec4 wValues = vec4(
                  getW(wF, wR, wC, d1, d2),
                  getW(wF, wR, wC, d1 + 1, d2),
                  getW(wF, wR, wC, d1 + 2, d2),
                  getW(wF, wR, wC, d1 + 3, d2)
                );

                dotProd += dot(xValues, wValues);
              }

              if (${m===1}) {
                dotProd +=
                  getX(batch, xF, xR, xC, ${h}) *
                  getW(wF, wR, wC, ${h}, d2);
              } else if (${m===2}) {
                vec2 xValues = vec2(
                  getX(batch, xF, xR, xC, ${h}),
                  getX(batch, xF, xR, xC, ${h} + 1)
                );
                vec2 wValues = vec2(
                  getW(wF, wR, wC, ${h}, d2),
                  getW(wF, wR, wC, ${h} + 1, d2)
                );
                dotProd += dot(xValues, wValues);
              } else if (${m===3}) {
                vec3 xValues = vec3(
                  getX(batch, xF, xR, xC, ${h}),
                  getX(batch, xF, xR, xC, ${h} + 1),
                  getX(batch, xF, xR, xC, ${h} + 2)
                );
                vec3 wValues = vec3(
                  getW(wF, wR, wC, ${h}, d2),
                  getW(wF, wR, wC, ${h} + 1, d2),
                  getW(wF, wR, wC, ${h} + 2, d2)
                );
                dotProd += dot(xValues, wValues);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}},TU=class{constructor(e,t,n){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;let{filterWidth:a,inChannels:r,strideWidth:s,strideHeight:i,padInfo:o,outWidth:u,dilationWidth:l,dilationHeight:d,dataFormat:p}=n,{left:c,top:h}=o,m=r*a,f=gn(),A=p==="channelsLast",g=A?0:1,y=A?1:2,x="";for(let v=0;v<=1;v++)for(let b=0;b<=1;b++)x+=`
          blockIndex = rc.y + ${b};
          pos = rc.x + ${v};

          if(blockIndex < ${e[1]} && pos < ${e[0]}) {
            offsetY = int(blockIndex / (${u})) * ${i} - ${h};
            d0 = offsetY + ${d} * (pos / ${m});

            if(d0 < ${t[g]} && d0 >= 0) {

              offsetX = int(mod(float(blockIndex), ${u}.) * ${s}. - ${c}.);
              d1 = offsetX + ${l} * (int(mod(float(pos), ${m}.) / ${r}.));

              if(d1 < ${t[y]} && d1 >= 0) {

                ch = int(mod(float(pos), ${r}.));

                if (${A}) {
                  innerDims = vec2(d1, ch);
                  result[${v*2+b}] = getChannel(
                    getA(d0, int(innerDims.x),
                    int(innerDims.y)), innerDims);
                } else {
                  innerDims = vec2(d0, d1);
                  result[${v*2+b}] = getChannel(
                    getA(ch, int(innerDims.x),
                    int(innerDims.y)), innerDims);
                }
              }
            }
          }
        `;this.userCode=`
      void main() {
        ivec2 rc = getOutputCoords();

        vec4 result = vec4(0);

        int blockIndex, pos, offsetY, d0, offsetX, d1, ch;
        vec2 innerDims;

        ${x}

        ${f.output} = result;
      }
    `}};function Lw({x:e,filter:t,convInfo:n,backend:a,bias:r=null,preluActivationWeights:s=null,leakyreluAlpha:i=0,activation:o=null}){let u=e.shape,l=a.texData.get(e.dataId),d=n.inChannels,p=u[0]*u[1]*u[2],c=n.outChannels,h=n.dataFormat==="channelsLast",m=!1,f=!1,A,g=[],y=(p===1||c===1)&&d>Cw,x=u[2]%2!=0&&!!l.isPacked;if(y||!te().getBool("WEBGL_LAZILY_UNPACK")||!te().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!x){let v=h?u[0]*u[1]*u[2]:u[0]*u[2]*u[3],b=ye({inputs:{x:e},backend:a,attrs:{shape:[1,v,n.inChannels]}}),w=ye({inputs:{x:t},backend:a,attrs:{shape:[1,n.inChannels,n.outChannels]}}),N=Xh({a:b,b:w,transposeA:m,transposeB:f,backend:a,bias:r,activation:o,preluActivationWeights:s,leakyreluAlpha:i});A=ye({inputs:{x:N},backend:a,attrs:{shape:n.outShape}}),g.push(b),g.push(w),g.push(N)}else{let v=h?u[0]*u[1]*(u[2]+1):u[0]*u[2]*(u[3]+1),b={dataId:e.dataId,shape:[1,v,n.inChannels],dtype:e.dtype},w=l.shape;l.shape=l.shape.slice(),l.shape[l.shape.length-2]++,k.assert(Fd(l.shape,b.shape),()=>`packed reshape ${l.shape} to ${b.shape} isn't free`);let N=ye({inputs:{x:t},backend:a,attrs:{shape:[1,n.inChannels,n.outChannels]}});g.push(N);let C=Xh({a:b,b:N,backend:a,transposeA:m,transposeB:f,bias:r,activation:o,preluActivationWeights:s,leakyreluAlpha:i}),E=a.texData.get(C.dataId);k.assert(E.isPacked,()=>"batchMatMul result is expected to be packed"),l.shape=w,E.shape=n.outShape,A=Xn({inputs:{x:C},backend:a}),A.shape=n.outShape,g.push(C)}for(let v of g)a.disposeIntermediateTensorInfo(v);return A}function Ww({x:e,filter:t,convInfo:n,backend:a,bias:r=null,preluActivationWeights:s=null,leakyreluAlpha:i=0,activation:o=null}){let{filterWidth:u,filterHeight:l,inChannels:d,outWidth:p,outHeight:c,dataFormat:h}=n,m=h==="channelsLast",f=u*l*d,A=c*p,g=[f,A],y=!0,x=!1,v=[],b=ye({inputs:{x:e},backend:a,attrs:{shape:e.shape.slice(1)}}),w=ye({inputs:{x:t},backend:a,attrs:{shape:[1,f,k.sizeFromShape(t.shape)/f]}});v.push(b),v.push(w);let N=new TU(g,b.shape,n),C=a.runWebGLProgram(N,[b],"float32"),E=ye({inputs:{x:C},backend:a,attrs:{shape:[1,g[0],g[1]]}});v.push(C),v.push(E);let _=r!=null,$=s!=null,S=o==="leakyrelu",z=o?Hh(o,!0):null,O=new kw(E.shape,w.shape,[1,A,n.outChannels],y,x,_,z,$,S),W=[E,w];if(r&&W.push(r),$&&W.push(s),S){let K=a.makeTensorInfo([],"float32",k.createScalarValue(i,"float32"));W.push(K),v.push(K)}let G=a.runWebGLProgram(O,W,"float32"),H=m?[1,c,p,n.outChannels]:[1,n.outChannels,c,p],J=ye({inputs:{x:G},backend:a,attrs:{shape:H}});v.push(G);for(let K of v)a.disposeIntermediateTensorInfo(K);return J}function CU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s}=t,{strides:i,pad:o,dataFormat:u,dilations:l,dimRoundingMode:d}=a,p=F.convertConv2DDataFormat(u),c=F.computeConv2DInfo(r.shape,s.shape,i,l,o,d,!1,p),h;if(c.filterHeight===1&&c.filterWidth===1&&c.dilationHeight===1&&c.dilationWidth===1&&c.strideHeight===1&&c.strideWidth===1&&(c.padInfo.type==="SAME"||c.padInfo.type==="VALID"))h=Lw({x:r,filter:s,convInfo:c,backend:n});else if(te().getBool("WEBGL_CONV_IM2COL")&&r.shape[0]===1)h=Ww({x:r,filter:s,convInfo:c,backend:n});else{let f=new Pw(c);h=n.runWebGLProgram(f,[r,s],"float32")}let m=ye({inputs:{x:h},backend:n,attrs:{shape:c.outShape}});return n.disposeIntermediateTensorInfo(h),m}var EU={kernelName:Ss,backendName:"webgl",kernelFunc:CU},RU=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideHeight,n=e.strideWidth,a=e.padInfo.top,r=e.padInfo.left,s=e.dataFormat==="channelsLast";this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int wR = coords.x;
        int wC = coords.y;
        int d1 = coords.z;
        int d2 = coords.w;

        // Convolve x(?, ?, d1) with dy(:, :, d2) to get dw(wR, wC, d1, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int b = 0; b < ${e.batchSize}; b++) {
          for (int yR = 0; yR < ${e.outHeight}; yR++) {
            int xR = wR + yR * ${t} - ${a};

            if (xR < 0 || xR >= ${e.inHeight}) {
              continue;
            }

            for (int yC = 0; yC < ${e.outWidth}; yC++) {
              int xC = wC + yC * ${n} - ${r};

              if (xC < 0 || xC >= ${e.inWidth}) {
                continue;
              }

              if (${s}) {
                float dyValue = getDy(b, yR, yC, d2);
                float xValue = getX(b, xR, xC, d1);
                dotProd += (xValue * dyValue);
              } else {
                float dyValue = getDy(b, d2, yR, yC);
                float xValue = getX(b, d1, xR, xC);
                dotProd += (xValue * dyValue);
              }

            }
          }
        }
        setOutput(dotProd);
      }
    `}},MU=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,a=e.strideHeight,r=e.strideWidth,s=e.dataFormat==="channelsLast",i=t-1-e.padInfo.top,o=n-1-e.padInfo.left,u=s?1:2,l=s?2:3,d=s?3:1;this.userCode=`
      const ivec2 pads = ivec2(${i}, ${o});

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d1 = coords[${d}];

        ivec2 dyCorner = ivec2(coords[${u}], coords[${l}]) - pads;
        int dyRCorner = dyCorner.x;
        int dyCCorner = dyCorner.y;

        // Convolve dy(?, ?, d2) with w(:, :, d1, d2) to compute dx(xR, xC, d1).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < ${t}; wR++) {
          float dyR = float(dyRCorner + wR) / ${a}.0;

          if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = ${t} - 1 - wR;

          for (int wC = 0; wC < ${n}; wC++) {
            float dyC = float(dyCCorner + wC) / ${r}.0;

            if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = ${n} - 1 - wC;

            for (int d2 = 0; d2 < ${e.outChannels}; d2++) {

              if (${s}) {
                float xValue = getDy(batch, idyR, idyC, d2);
                float wValue = getW(wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              } else {
                float xValue = getDy(batch, d2, idyR, idyC);
                float wValue = getW(wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              }

            }
          }
        }
        setOutput(dotProd);
      }
    `}},FU=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideDepth,n=e.strideHeight,a=e.strideWidth,r=e.padInfo.front,s=e.padInfo.top,i=e.padInfo.left;this.userCode=`
      void main() {
        ivec5 coords = getOutputCoords();
        int wF = coords.x;
        int wR = coords.y;
        int wC = coords.z;
        int d1 = coords.w;
        int d2 = coords.u;

        float dotProd = 0.0;

        for (int b = 0; b < ${e.batchSize}; b++) {
          for (int yF = 0; yF < ${e.outDepth}; yF++) {
            int xF = wF + yF * ${t} - ${r};

            if (xF < 0 || xF >= ${e.inDepth}) {
              continue;
            }

            for (int yR = 0; yR < ${e.outHeight}; yR++) {
              int xR = wR + yR * ${n} - ${s};

              if (xR < 0 || xR >= ${e.inHeight}) {
                continue;
              }

              for (int yC = 0; yC < ${e.outWidth}; yC++) {
                int xC = wC + yC * ${a} - ${i};

                if (xC < 0 || xC >= ${e.inWidth}) {
                  continue;
                }

                float dyValue = getDy(b, yF, yR, yC, d2);
                float xValue = getX(b, xF, xR, xC, d1);
                dotProd += (xValue * dyValue);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}},$U=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterDepth,n=e.filterHeight,a=e.filterWidth,r=e.strideDepth,s=e.strideHeight,i=e.strideWidth,o=t-1-e.padInfo.front,u=n-1-e.padInfo.top,l=a-1-e.padInfo.left;this.userCode=`
      const ivec3 pads = ivec3(${o}, ${u}, ${l});

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int d1 = coords.u;


        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyFCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        float dotProd = 0.0;
        for (int wF = 0; wF < ${t}; wF++) {
          float dyF = float(dyFCorner + wF) / ${r}.0;

          if (dyF < 0.0 || dyF >= ${e.outDepth}.0 || fract(dyF) > 0.0) {
            continue;
          }
          int idyF = int(dyF);

          int wFPerm = ${t} - 1 - wF;

          for (int wR = 0; wR < ${n}; wR++) {
            float dyR = float(dyRCorner + wR) / ${s}.0;

            if (dyR < 0.0 || dyR >= ${e.outHeight}.0 ||
              fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            int wRPerm = ${n} - 1 - wR;

            for (int wC = 0; wC < ${a}; wC++) {
              float dyC = float(dyCCorner + wC) / ${i}.0;

              if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              int wCPerm = ${a} - 1 - wC;

              for (int d2 = 0; d2 < ${e.outChannels}; d2++) {
                float xValue = getDy(batch, idyF, idyR, idyC, d2);
                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}};function DU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,dy:s}=t,{strides:i,pad:o,dataFormat:u,dimRoundingMode:l,filterShape:d}=a,p=F.convertConv2DDataFormat(u),c=F.computeConv2DInfo(r.shape,d,i,1,o,l,!1,p),h=new RU(c);return n.runWebGLProgram(h,[r,s],"float32")}var OU={kernelName:Jp,backendName:"webgl",kernelFunc:DU};function zU(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,filter:s}=t,{inputShape:i,strides:o,pad:u,dataFormat:l,dimRoundingMode:d}=a,p=F.convertConv2DDataFormat(l),c=F.computeConv2DInfo(i,s.shape,o,1,u,d,!1,p),h=new MU(c);return n.runWebGLProgram(h,[r,s],"float32")}var _U={kernelName:Ns,backendName:"webgl",kernelFunc:zU};function PU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s}=t,{strides:i,pad:o,dilations:u}=a,l=F.computeConv3DInfo(r.shape,s.shape,i,u,o),d=new NU(l);return n.runWebGLProgram(d,[r,s],"float32")}var LU={kernelName:zu,backendName:"webgl",kernelFunc:PU};function WU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,dy:s}=t,{strides:i,pad:o,filterShape:u}=a,l=F.computeConv3DInfo(r.shape,u,i,1,o),d=new FU(l);return n.runWebGLProgram(d,[r,s],"float32")}var BU={kernelName:Qp,backendName:"webgl",kernelFunc:WU};function VU(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,filter:s}=t,{pad:i,strides:o,inputShape:u}=a,l=F.computeConv3DInfo(u,s.shape,o,1,i),d=new $U(l);return n.runWebGLProgram(d,[r,s],"float32")}var jU={kernelName:ec,backendName:"webgl",kernelFunc:VU},UU=ww+`
  return cos(x);
`,HU=Ke({opSnippet:UU}),GU={kernelName:Ts,backendName:"webgl",kernelFunc:HU},qU=`
  float e2x = exp(-x);
  return (e2x + 1.0 / e2x) / 2.0;
`,XU=Ke({opSnippet:qU}),KU={kernelName:So,backendName:"webgl",kernelFunc:XU},ZU=class{constructor(e,t,n,a,r){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];let[s,i,o,u]=e,[l]=t,[d,p]=n;this.outputShape=[l,d,p,u];let c=a==="bilinear"?1:0,[h,m]=[`${i-1}.0`,`${o-1}.0`],[f,A,g]=d>1?[`${(i-1)/(d-1)}`,"(y2-y1) * height_ratio",`y1*${h} + float(y)*(height_scale)`]:["0.0","0.0",`0.5 * (y1+y2) * ${h}`],[y,x,v]=p>1?[`${(o-1)/(p-1)}`,"(x2-x1) * width_ratio",`x1*${m} + float(x)*(width_scale)`]:["0.0","0.0",`0.5 * (x1+x2) * ${m}`];this.userCode=`
      const float height_ratio = float(${f});
      const float width_ratio = float(${y});
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int y = coords[1];
        int x = coords[2];
        int d = coords[3];

        // get box vals
        float y1 = getBoxes(b,0);
        float x1 = getBoxes(b,1);
        float y2 = getBoxes(b,2);
        float x2 = getBoxes(b,3);

        // get image in batch index
        int bInd = round(getBoxInd(b));
        if(bInd < 0 || bInd >= ${s}) {
          return;
        }

        float height_scale = ${A};
        float width_scale = ${x};

        float in_y = ${g};
        if( in_y < 0.0 || in_y > ${h} ) {
          setOutput(float(${r}));
          return;
        }
        float in_x = ${v};
        if( in_x < 0.0 || in_x > ${m} ) {
          setOutput(float(${r}));
          return;
        }

        vec2 sourceFracIndexCR = vec2(in_x,in_y);
        if(${c} == 1) {
          // Compute the four integer indices.
          ivec2 sourceFloorCR = ivec2(sourceFracIndexCR);
          ivec2 sourceCeilCR = ivec2(ceil(sourceFracIndexCR));

          float topLeft = getImage(b, sourceFloorCR.y, sourceFloorCR.x, d);
          float bottomLeft = getImage(b, sourceCeilCR.y, sourceFloorCR.x, d);
          float topRight = getImage(b, sourceFloorCR.y, sourceCeilCR.x, d);
          float bottomRight = getImage(b, sourceCeilCR.y, sourceCeilCR.x, d);

          vec2 fracCR = sourceFracIndexCR - vec2(sourceFloorCR);

          float top = topLeft + (topRight - topLeft) * fracCR.x;
          float bottom = bottomLeft + (bottomRight - bottomLeft) * fracCR.x;
          float newValue = top + (bottom - top) * fracCR.y;
          setOutput(newValue);
        } else {
          // Compute the coordinators of nearest neighbor point.
          ivec2 sourceNearestCR = ivec2(floor(
            sourceFracIndexCR + vec2(0.5,0.5)));
          float newValue = getImage(b, sourceNearestCR.y, sourceNearestCR.x, d);
          setOutput(newValue);
        }
      }
    `}},YU=e=>{let{inputs:t,backend:n,attrs:a}=e,{image:r,boxes:s,boxInd:i}=t,{cropSize:o,method:u,extrapolationValue:l}=a,d=new ZU(r.shape,s.shape,o,u,l);return n.runWebGLProgram(d,[r,s,i],"float32")},JU={kernelName:No,backendName:"webgl",kernelFunc:YU},Bw=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=e;let a=e.length,r=t?"0.0":`getX(${Vw(a,"coords")})`,s=e[e.length-1],i="",o="";t?(i=n?`end != ${s-1}`:"end != 0",o=n?"end + 1":"end - 1"):(i=n?`end + pow2 < ${s}`:"end >= pow2",o=n?"end + pow2":"end - pow2"),this.userCode=`
      uniform float index;
      void main() {
        ${ut(a)} coords = getOutputCoords();
        int end = ${jw(a,"coords")};
        float val = ${r};
        int pow2 = int(pow(2.0, index));
        if (${i}) {
          int idx = ${o};
          ${jw(a,"coords")} = idx;
          val += getX(${Vw(a,"coords")});
        }
        setOutput(val);
      }
    `}getCustomSetupFunc(e){return(t,n)=>{this.index==null&&(this.index=t.getUniformLocation(n,"index")),t.gl.uniform1f(this.index,e)}}};function Vw(e,t){if(e===1)return`${t}`;if(e===2)return`${t}.x, ${t}.y`;if(e===3)return`${t}.x, ${t}.y, ${t}.z`;if(e===4)return`${t}.x, ${t}.y, ${t}.z, ${t}.w`;throw Error(`Cumulative sum for rank ${e} is not yet supported`)}function jw(e,t){if(e===1)return`${t}`;if(e===2)return`${t}.y`;if(e===3)return`${t}.z`;if(e===4)return`${t}.w`;throw Error(`Cumulative sum for rank ${e} is not yet supported`)}function QU(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,exclusive:i,reverse:o}=a,u=r.shape.length,l=F.getAxesPermutation([s],u),d=r;l!=null&&(d=xn({inputs:{x:r},backend:n,attrs:{perm:l}}));let p=F.getInnerMostAxes(1,u)[0];if(p!==u-1)throw new Error(`WebGL cumsum shader expects an inner-most axis=${r.shape.length-1} but got axis=${s}`);let c=d.shape[p],h=Xn({inputs:{x:d},backend:n});for(let m=0;m<=Math.ceil(Math.log2(c))-1;m++){let f=new Bw(d.shape,!1,o),A=f.getCustomSetupFunc(m),g=h;h=n.runWebGLProgram(f,[h],h.dtype,A),n.disposeIntermediateTensorInfo(g)}if(i){let m=new Bw(d.shape,i,o),f=h;h=n.runWebGLProgram(m,[h],h.dtype),n.disposeIntermediateTensorInfo(f)}if(l!=null){let m=F.getUndoAxesPermutation(l),f=xn({inputs:{x:h},backend:n,attrs:{perm:m}});return n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(d),f}return h}var eH={kernelName:Cs,backendName:"webgl",kernelFunc:QU};function tH(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,weights:s}=t,{size:i,binaryOutput:o}=a;if(r.shape.length===1){let u=n.readSync(r.dataId),l=n.readSync(s.dataId),d=iw(u,l,s.dtype,s.shape,i);return n.makeTensorInfo([i],s.dtype,d)}else if(r.shape.length===2){let u=n.bufferSync(r),l=n.bufferSync(s),d=gB(u,l,i,o);return n.makeTensorInfo(d.shape,s.dtype,d.values)}throw new Error(`Error in denseBincount: input must be at most rank 2, but got rank${r.shape.length}.`)}var nH={kernelName:tc,backendName:"webgl",kernelFunc:tH},aH=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=[],this.outputShape=e,this.blockSize=t,this.dataFormat=n,this.userCode=`
    void main() {
      ivec4 coords = getOutputCoords();
      int b = coords[0];
      int h = ${this.getHeightCoordString()};
      int w = ${this.getWidthCoordString()};
      int d = ${this.getDepthCoordString()};

      int in_h = h / ${t};
      int offset_h = imod(h, ${t});
      int in_w = w / ${t};
      int offset_w = imod(w, ${t});
      int offset_d = (offset_h * ${t} + offset_w) *
        ${this.getOutputDepthSize()};
      int in_d = d + offset_d;

      float result = ${this.getInputSamplingString()};
      setOutput(result);
    }
  `}getHeightCoordString(){return this.dataFormat==="NHWC"?"coords[1]":"coords[2]"}getWidthCoordString(){return this.dataFormat==="NHWC"?"coords[2]":"coords[3]"}getDepthCoordString(){return this.dataFormat==="NHWC"?"coords[3]":"coords[1]"}getOutputDepthSize(){return this.dataFormat==="NHWC"?this.outputShape[3]:this.outputShape[1]}getInputSamplingString(){return this.dataFormat==="NHWC"?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"}};function rH(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{blockSize:s,dataFormat:i}=a;k.assert(s>1,()=>`blockSize should be > 1 for depthToSpace, but was: ${s}`);let o=r.shape[0],u=i==="NHWC"?r.shape[1]:r.shape[2],l=i==="NHWC"?r.shape[2]:r.shape[3],d=i==="NHWC"?r.shape[3]:r.shape[1],p=u*s,c=l*s,h=d/(s*s),m=i==="NHWC"?[o,p,c,h]:[o,h,p,c],f=new aH(m,s,i);return n.runWebGLProgram(f,[r],r.dtype)}var sH={kernelName:To,backendName:"webgl",kernelFunc:rH},Uw=class{constructor(e,t=!1,n=null,a=!1,r=!1){this.variableNames=["x","W"],this.outputShape=e.outShape;let s=e.inHeight,i=e.inWidth,o=e.padInfo.top,u=e.padInfo.left,l=e.strideHeight,d=e.strideWidth,p=e.dilationHeight,c=e.dilationWidth,h=e.filterHeight,m=e.filterWidth,f=e.outChannels/e.inChannels,A="",g="";n&&(a?A=`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          ${n}
        }`:r?A=`float activation(float a) {
          float b = getLeakyreluAlphaAtOutCoords();
          ${n}
        }`:A=`
          float activation(float x) {
            ${n}
          }
        `,g="result = activation(result);");let y=t?"result += getBiasAtOutCoords();":"";t&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),r&&this.variableNames.push("leakyreluAlpha"),this.userCode=`
      ${A}

      const ivec2 strides = ivec2(${l}, ${d});
      const ivec2 pads = ivec2(${o}, ${u});

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        ivec2 xRCCorner = coords.yz * strides - pads;
        int d2 = coords.w;
        int d1 = d2 / ${f};
        int q = d2 - d1 * ${f};

        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        // Convolve x(?, ?, d1) with w(:, :, d1, q) to get y(yR, yC, d2).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        // TO DO(dsmilkov): Flatten the two for loops and vec4 the operations.
        for (int wR = 0; wR < ${h}; wR++) {
          int xR = xRCorner + wR * ${p};

          if (xR < 0 || xR >= ${s}) {
            continue;
          }

          for (int wC = 0; wC < ${m}; wC++) {
            int xC = xCCorner + wC * ${c};

            if (xC < 0 || xC >= ${i}) {
              continue;
            }

            float xVal = getX(batch, xR, xC, d1);
            float wVal = getW(wR, wC, d1, q);
            dotProd += xVal * wVal;
          }
        }

        float result = dotProd;
        ${y}
        ${g}
        setOutput(result);
      }
    `}},Hw=class{constructor(e,t=!1,n=null,a=!1,r=!1){this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e.outShape;let s=e.outChannels/e.inChannels,i=e.inHeight,o=e.inWidth,u=e.padInfo.top,l=e.padInfo.left,d=e.strideHeight,p=e.strideWidth,c=e.dilationHeight,h=e.dilationWidth,m=e.filterHeight,f=e.filterWidth,A=f,g=`
      int xR; int xC; int xCOffset;
      vec4 wTexel; vec4 previous; vec4 final;`;for(let b=0;b<f;b++)g+=`
          vec4 xTexelC${b*2};
          int xTexelC${b*2}Ready;
          vec4 xC${b};`;for(let b=0;b<m;b++){for(let w=0;w<f;w++)g+=`
          xTexelC${w*2} = vec4(0.0);
          xTexelC${w*2}Ready = 0;
          xC${w} = vec4(0.0);`;g+=`
        xR = xRCorner + ${b*c};
        if (xR >=0 && xR < ${i}) {
      `;for(let w=0;w<(A+1)/2;w++){let N=w*2,C=N*h;if(g+=`
          xC = xCCorner + ${C};
          `,p===1){if(N<f&&(l%2==1?(g+=`
                xCOffset = xC + 1;
                if (xCOffset >= 0 && xCOffset < ${o} && xTexelC${C}Ready == 0) {
                  xTexelC${C} = getX(batch, xR, xCOffset, d1);

                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if (xCOffset + 1 >= ${o}) {
                    xTexelC${C}.zw = vec2(0.0);
                  }
                  xTexelC${C}Ready = 1;
                }
              `,h===1&&C>0?g+=`
                xC${N} = vec4(xTexelC${C-2}.zw, xTexelC${C}.xy);
                `:g+=`
                  xCOffset = xC + 1 - 2;

                  if (xCOffset >= 0 && xCOffset < ${o}) {
                    previous = getX(batch, xR, xCOffset, d1);

                    // Need to manually clear unused channels in case
                    // we're reading from recycled texture.
                    if (xCOffset + 1 >= ${o}) {
                      previous.zw = vec2(0.0);
                    }

                    xC${N} = vec4(previous.zw, xTexelC${C}.xy);
                  } else {
                    xC${N} = vec4(0.0, 0.0, xTexelC${C}.xy);
                  }
                  `):g+=`
                if (xC >= 0 && xC < ${o} && xTexelC${C}Ready == 0) {
                  xTexelC${C} = getX(batch, xR, xC, d1);
                  if (xC + 1 >= ${o}) {
                    xTexelC${C}.zw = vec2(0.0);
                  }
                  xTexelC${C}Ready = 1;
                }

                xC${N} = xTexelC${C};
                `,C+1<f)){let E=l%2==0?k.nearestLargerEven(h):h;h%2==0&&l%2==1||h%2!=0&&l%2!=1?(g+=`
                  xCOffset = xC + ${l%2} + ${E};

                  if (xCOffset >= 0 && xCOffset < ${o} && xTexelC${C+2}Ready == 0) {
                    xTexelC${C+2} = getX(batch, xR, xCOffset, d1);

                    // Need to manually clear unused channels in case
                    // we're reading from recycled texture.
                    if (xCOffset + 1 >= ${o}) {
                      xTexelC${C+2}.zw = vec2(0.0);
                    }
                    xTexelC${C+2}Ready = 1;
                  }
                  `,h>1&&(g+=`
                    xCOffset -= 2;
                    if (xCOffset >= 0 && xCOffset < ${o} && xTexelC${C}Ready == 0) {
                      xTexelC${C} = getX(batch, xR, xCOffset, d1);
                      xTexelC${C}Ready = 1;
                    }
                    `),g+=`
                  xC${N+1} = vec4(xTexelC${C}.zw, xTexelC${C+2}.xy);
                  `):E===1?g+=`
                    xC${N+1} = xTexelC${C};
                    `:g+=`
                    xCOffset = xC + ${E};

                    if (xCOffset >= 0 && xCOffset < ${o} && xTexelC${C+2}Ready == 0) {
                      xTexelC${C+2} = getX(batch, xR, xCOffset, d1);
                      if (xCOffset + 1 >= ${o}) {
                        xTexelC${C+2}.zw = vec2(0.0);
                      }
                      xTexelC${C+2}Ready = 1;
                    }

                    xC${N+1} = xTexelC${C+2};
                    `}}else C<f&&(l%2==1?(g+=`
                xCOffset = xC + 1 - ${p};
                if(xCOffset >= 0 && xCOffset < ${o} && xTexelC${C}Ready == 0) {
                  xTexelC${C} = getX(batch, xR, xCOffset, d1);
                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if (xCOffset + 1 >= ${o}) {
                    xTexelC${C}.zw = vec2(0.0);
                  }
                  xTexelC${C}Ready = 1;
                }

                if(xC + 1 >= 0 && xC + 1 < ${o} && xTexelC${C+2}Ready == 0) {
                  xTexelC${C+2} = getX(batch, xR, xC + 1, d1);
                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if (xC + 2 >= ${o}) {
                    xTexelC${C+2}.zw = vec2(0.0);
                  }
                  xTexelC${C+2}Ready = 1;
                }

                xC${N} = vec4(xTexelC${C}.zw, xTexelC${C+2}.zw);
              `,C+1<f&&(g+=`
                  final = vec4(0.0);
                  xCOffset = xC + 1 + ${p};
                  if(xCOffset >= 0 && xCOffset < ${o}) {
                    final = getX(batch, xR, xCOffset, d1);
                  }
                  xC${N+1} = vec4(xTexelC${C+2}.xy, final.xy);
                `)):(g+=`
                if(xC >= 0 && xC < ${o} && xTexelC${C}Ready == 0) {
                  xTexelC${C} = getX(batch, xR, xC, d1);
                  if (xC + 1 >= ${o}) {
                    xTexelC${C}.zw = vec2(0.0);
                  }
                  xTexelC${C}Ready = 1;
                }

                xCOffset = xC + ${p};
                if(xCOffset >= 0 && xCOffset < ${o} && xTexelC${C+2}Ready == 0) {
                  xTexelC${C+2} = getX(batch, xR, xCOffset, d1);
                  if (xCOffset + 1 >= ${o}) {
                    xTexelC${C+2}.zw = vec2(0.);
                  }
                  xTexelC${C+2}Ready = 1;
                }

                xC${N} = vec4(
                  xTexelC${C}.xy, xTexelC${C+2}.xy);
              `,C+1<f&&(g+=`
                  xC${N+1} = vec4(xTexelC${C}.zw, xTexelC${C+2}.zw);
                `)));N<f&&(g+=`
            wTexel = getW(${b}, ${C}, d1, q);
            dotProd += xC${N} * vec4(wTexel.xz, wTexel.xz);
          `,C+1<f&&(g+=`
              wTexel = getW(${b}, ${C+1}, d1, q);
              dotProd += xC${N+1} * vec4(wTexel.xz, wTexel.xz);
            `))}g+=`
        }
      `}let y="",x="";n&&(a?y=`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          ${n}
        }`:r?y=`vec4 activation(vec4 a) {
          vec4 b = getLeakyreluAlphaAtOutCoords();
          ${n}
        }`:y=`vec4 activation(vec4 x) {
          ${n}
        }`,x="result = activation(result);");let v=t?"result += getBiasAtOutCoords();":"";t&&this.variableNames.push("bias"),a&&this.variableNames.push("preluActivationWeights"),r&&this.variableNames.push("leakyreluAlpha"),this.userCode=`
      ${y}

      const ivec2 strides = ivec2(${d}, ${p});
      const ivec2 pads = ivec2(${u}, ${l});

      void main() {

        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        ivec2 xRCCorner = coords.yz * strides - pads;
        int d2 = coords.w;
        int d1 = d2 / ${s};
        int q = d2 - d1 * ${s};
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        //intialize dotProd with a small epsilon seems to reduce GPU accuracy loss.
        vec4 dotProd = vec4(0.000000000000001);

        ${g}

        vec4 result = dotProd - vec4(0.000000000000001);
        ${v}
        ${x}
        setOutput(result);
      }
    `}};function iH(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s}=t,{strides:i,pad:o,dilations:u,dimRoundingMode:l}=a,d=u;d==null&&(d=[1,1]),k.assert(F.eitherStridesOrDilationsAreOne(i,d),()=>`Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides ${i} and dilations '${d}'`);let p=F.computeConv2DInfo(r.shape,s.shape,i,d,o,l,!0),c;return te().getBool("WEBGL_PACK_DEPTHWISECONV")&&p.strideWidth<=2&&p.outChannels/p.inChannels==1?c=new Hw(p):c=new Uw(p),n.runWebGLProgram(c,[r,s],"float32")}var oH={kernelName:Es,backendName:"webgl",kernelFunc:iH},lH=class{constructor(e){this.variableNames=["x","dy"],this.outputShape=e.filterShape;let t=e.strideHeight,n=e.strideWidth,a=e.padInfo.top,r=e.padInfo.left,s=e.outChannels/e.inChannels;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int wR = coords.x;
        int wC = coords.y;
        int d1 = coords.z;
        int dm = coords.w;
        int d2 = d1 * ${s} + dm;

        float dotProd = 0.0;

        // TO DO: Vec4 over the batch size
        for (int b = 0; b < ${e.batchSize}; b++) {
          for (int yR = 0; yR < ${e.outHeight}; yR++) {
            int xR = wR + yR * ${t} - ${a};

            if (xR < 0 || xR >= ${e.inHeight}) {
              continue;
            }

            for (int yC = 0; yC < ${e.outWidth}; yC++) {
              int xC = wC + yC * ${n} - ${r};

              if (xC < 0 || xC >= ${e.inWidth}) {
                continue;
              }

              float dyValue = getDy(b, yR, yC, d2);
              float xValue = getX(b, xR, xC, d1);
              dotProd += (xValue * dyValue);
            }
          }
        }
        setOutput(dotProd);
      }
    `}},uH=class{constructor(e){this.variableNames=["dy","W"],this.outputShape=e.inShape;let t=e.filterHeight,n=e.filterWidth,a=e.strideHeight,r=e.strideWidth,s=t-1-e.padInfo.top,i=n-1-e.padInfo.left,o=e.outChannels/e.inChannels;this.userCode=`
      const ivec2 pads = ivec2(${s}, ${i});

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d1 = coords[3];
        ivec2 dyCorner = coords.yz - pads;
        int dyRCorner = dyCorner.x;
        int dyCCorner = dyCorner.y;

        float dotProd = 0.0;

        for (int wR = 0; wR < ${t}; wR++) {
          float dyR = float(dyRCorner + wR) / ${a}.0;

          if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = ${t} - 1 - wR;

          for (int wC = 0; wC < ${n}; wC++) {
            float dyC = float(dyCCorner + wC) / ${r}.0;

            if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = ${n} - 1 - wC;

            // TO DO: Vec4 over the channelMul
            for (int dm = 0; dm < ${o}; dm++) {
              int d2 = d1 * ${o} + dm;
              float xValue = getDy(batch, idyR, idyC, d2);
              float wValue = getW(wRPerm, wCPerm, d1, dm);
              dotProd += xValue * wValue;
            }
          }
        }
        setOutput(dotProd);
      }
    `}};function dH(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,dy:s}=t,{strides:i,dilations:o,pad:u,dimRoundingMode:l,filterShape:d}=a,p=F.computeConv2DInfo(r.shape,d,i,o,u,l,!0),c=new lH(p);return n.runWebGLProgram(c,[r,s],"float32")}var pH={kernelName:nc,backendName:"webgl",kernelFunc:dH};function cH(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,filter:s}=t,{strides:i,dilations:o,pad:u,dimRoundingMode:l,inputShape:d}=a,p=F.computeConv2DInfo(d,s.shape,i,o,u,l,!0),c=new uH(p);return n.runWebGLProgram(c,[r,s],"float32")}var hH={kernelName:ac,backendName:"webgl",kernelFunc:cH},fH=class{constructor(e){this.variableNames=["X"],this.outputShape=[e,e],this.userCode=`
      void main() {
          ivec2 coords = getOutputCoords();
          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;
          setOutput(val);
      }
    `}};function mH(e){let{inputs:t,backend:n}=e,{x:a}=t,r=[...a.shape,...a.shape],s=k.sizeFromShape(a.shape),i=ye({inputs:{x:a},backend:n,attrs:{shape:[s]}}),o=new fH(s),u=n.runWebGLProgram(o,[i],i.dtype),l=ye({inputs:{x:u},backend:n,attrs:{shape:r}});return n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(u),l}var AH={kernelName:rc,backendName:"webgl",kernelFunc:mH},gH=class{constructor(e){this.variableNames=["x","W"],this.outputShape=e.outShape;let{inHeight:t,inWidth:n,padInfo:a,strideHeight:r,strideWidth:s,filterHeight:i,filterWidth:o,dilationHeight:u,dilationWidth:l}=e,{top:d,left:p}=a;this.userCode=`
      const ivec2 strides = ivec2(${r}, ${s});
      const ivec2 pads = ivec2(${d}, ${p});
      const float neg_infinity = -3.4e38;

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        int d1 = coords.w;
        ivec2 outTopLeftCorner =
            coords.yz * strides - pads;
        int hBeg = outTopLeftCorner.x;
        int wBeg = outTopLeftCorner.y;

        float curVal = neg_infinity;
        for (int h = 0; h < ${i}; h++) {
          int hIn = hBeg + h * ${u};

          if (hIn >= 0 && hIn < ${t}) {
            for (int w = 0; w < ${o}; w++) {
              int wIn = wBeg + w * ${l};

              if (wIn >= 0 && wIn < ${n}) {
                float xVal = getX(batch, hIn, wIn, d1);
                float wVal = getW(h, w, d1);

                float val = xVal + wVal;
                if (val > curVal) {
                  curVal = val;
                }
              }
            }
          }
        }

        float result = curVal;
        setOutput(result);
      }
    `}};function yH(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s}=t,{strides:i,pad:o,dilations:u}=a,l=F.computeDilation2DInfo(r.shape,s.shape,i,o,"NHWC",u),d,p=new gH(l);d=n.runWebGLProgram(p,[r,s],"float32");let c=ye({inputs:{x:d},backend:n,attrs:{shape:l.outShape}});return n.disposeIntermediateTensorInfo(d),c}var xH={kernelName:_u,backendName:"webgl",kernelFunc:yH};function bH(e){let{inputs:t,backend:n,attrs:a}=e,{equation:r}=a,s=t,{allDims:i,summedDims:o,idDims:u}=F.decodeEinsumEquation(r,s.length);F.checkEinsumDimSizes(i.length,u,s);let{path:l,steps:d}=F.getEinsumComputePath(o,u),p=d.length,c=null,h=i.length,m=[];for(let f=0;f<p;++f){for(let A of d[f]){let{permutationIndices:g,expandDims:y}=F.getEinsumPermutation(h,u[A]),x;F.isIdentityPermutation(g)?x=s[A]:(x=xn({inputs:{x:s[A]},backend:n,attrs:{perm:g}}),m.push(x));let v=x.shape.slice();for(let b=0;b<y.length;++b)v.splice(y[b],0,1);k.arraysEqual(x.shape,v)||(x=ye({inputs:{x},backend:n,attrs:{shape:v}}),m.push(x)),c===null?c=x:(c=qA({inputs:{a:x,b:c},backend:n}),m.push(c))}f<p-1&&(l[f]>=0&&(c=qh({inputs:{x:c},backend:n,attrs:{axis:l[f]-(i.length-h),keepDims:!1}}),m.push(c)),h--)}for(let f of m)f!==c&&n.disposeIntermediateTensorInfo(f);return c}var vH={kernelName:oc,backendName:"webgl",kernelFunc:bH},wH="return (x >= 0.0) ? x : (exp(x) - 1.0);",kH=`
  vec4 result;

  result.r = (x.r >= 0.0) ? x.r : (exp(x.r) - 1.0);
  result.g = (x.g >= 0.0) ? x.g : (exp(x.g) - 1.0);
  result.b = (x.b >= 0.0) ? x.b : (exp(x.b) - 1.0);
  result.a = (x.a >= 0.0) ? x.a : (exp(x.a) - 1.0);

  return result;
`,IH=Ke({opSnippet:wH,packedOpSnippet:kH}),SH={kernelName:Co,backendName:"webgl",kernelFunc:IH},NH="return (b >= 1.0) ? a : a * (b + 1.0);",TH=`
  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));
  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));
`,CH=e=>{let{inputs:t,backend:n}=e,{dy:a,y:r}=t,s=te().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Dd(TH,a.shape,r.shape):new Kl(NH,a.shape,r.shape);return n.runWebGLProgram(s,[a,r],a.dtype)},EH={kernelName:lc,backendName:"webgl",kernelFunc:CH},RH=`
  return vec4(equal(a, b));
`,MH="return float(a == b);",FH=rn({opSnippet:MH,packedOpSnippet:RH,dtype:"bool",cpuKernelImpl:bB}),$H={kernelName:Ro,backendName:"webgl",kernelFunc:FH},DH=`
  // Error function is calculated approximately with elementary function.
  // See "Handbook of Mathematical Functions with Formulas,
  // Graphs, and Mathematical Tables", Abramowitz and Stegun.
  float p = ${F.ERF_P};
  float a1 = ${F.ERF_A1};
  float a2 = ${F.ERF_A2};
  float a3 = ${F.ERF_A3};
  float a4 = ${F.ERF_A4};
  float a5 = ${F.ERF_A5};

  float sign = sign(x);
  x = abs(x);
  float t = 1.0 / (1.0 + p * x);
  return sign * (1.0 - (((((a5*t + a4)*t) + a3)*t + a2)*t + a1)*t*exp(-x*x));
`,OH=Ke({opSnippet:DH}),zH={kernelName:Eo,backendName:"webgl",kernelFunc:OH},Gw="return exp(x);",qw=Ke({opSnippet:Gw,packedOpSnippet:Gw,cpuKernelImpl:vB}),_H={kernelName:Ms,backendName:"webgl",kernelFunc:qw};function YA(e){let{inputs:t,attrs:n,backend:a}=e,{dim:r}=n,{input:s}=t,i=s.shape.length,o=s.shape.slice(),u=r;return r<0&&(k.assert(-(i+1)<=r,()=>`Axis must be in the interval [${-(i+1)}, ${i}]`),u=i+r+1),o.splice(u,0,1),ye({inputs:{x:s},backend:a,attrs:{shape:o}})}var PH={kernelName:Mo,backendName:"webgl",kernelFunc:YA},Xw="return exp(x) - 1.0;",LH=Ke({opSnippet:Xw,packedOpSnippet:Xw,cpuKernelImpl:wB}),WH={kernelName:Fo,backendName:"webgl",kernelFunc:LH},Kw=class{constructor(e,t,n){this.variableNames=["real","imag"];let a=t[1];this.outputShape=t;let r=n?`2.0 * ${Math.PI}`:`-2.0 * ${Math.PI}`,s=n?`${a}.0`:"1.0",i;if(e==="real")i="return real * expR - imag * expI;";else if(e==="imag")i="return real * expI + imag * expR;";else throw new Error(`FFT component must be either "real" or "imag", got ${e}.`);this.userCode=`
      const float exponentMultiplier = ${r};

      float unaryOpComplex(float real, float expR, float imag, float expI) {
        ${i}
      }

      float mulMatDFT(int batch, int index) {
        float indexRatio = float(index) / float(${a});
        float exponentMultiplierTimesIndexRatio =
            exponentMultiplier * indexRatio;

        float result = 0.0;

        for (int i = 0; i < ${a}; i++) {
          // x = (-2|2 * PI / N) * index * i;
          float x = exponentMultiplierTimesIndexRatio * float(i);
          float expR = cos(x);
          float expI = sin(x);
          float real = getReal(batch, i);
          float imag = getImag(batch, i);

          result +=
              unaryOpComplex(real, expR, imag, expI) / ${s};
        }

        return result;
      }

      void main() {
        ivec2 coords = getOutputCoords();
        setOutput(mulMatDFT(coords[0], coords[1]));
      }
    `}};function Zw(e,t,n){let a=n.texData.get(e.dataId),r=k.sizeFromShape(e.shape),s=e.shape[e.shape.length-1],i=r/s,o=ye({inputs:{x:e},backend:n,attrs:{shape:[i,s]}}),u=o.shape,l=new Kw("real",u,t),d=new Kw("imag",u,t),p=[{dataId:a.complexTensorInfos.real.dataId,dtype:a.complexTensorInfos.real.dtype,shape:u},{dataId:a.complexTensorInfos.imag.dataId,dtype:a.complexTensorInfos.imag.dtype,shape:u}],c=n.runWebGLProgram(l,p,"float32"),h=n.runWebGLProgram(d,p,"float32"),m=Jr({inputs:{real:c,imag:h},backend:n});n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(h);let f=ye({inputs:{x:m},backend:n,attrs:{shape:e.shape}});return n.disposeIntermediateTensorInfo(o),n.disposeIntermediateTensorInfo(m),f}function BH(e){let{inputs:t,backend:n}=e,{input:a}=t;return Zw(a,!1,n)}var VH={kernelName:uc,backendName:"webgl",kernelFunc:BH},jH=class{constructor(e,t){this.outputShape=[],this.variableNames=["x"],this.outputShape=e,this.userCode=`
      uniform float value;
      void main() {
        // Input can be obtained from uniform value.
        setOutput(value);
      }
    `}getCustomSetupFunc(e){return(t,n)=>{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}};function JA(e){let{backend:t,attrs:n}=e,{shape:a,value:r}=n,{dtype:s}=n;if(s=s||k.inferDtype(r),s==="string"){let i=k.getArrayFromDType(s,k.sizeFromShape(a));return i.fill(r),t.makeTensorInfo(a,s,i)}else{let i=new jH(a,r),o=i.getCustomSetupFunc(r);return t.runWebGLProgram(i,[],s,o)}}var UH={kernelName:Pu,backendName:"webgl",kernelFunc:JA},HH=class{constructor(e){this.variableNames=["Image"],this.outputShape=[];let t=e[2];this.outputShape=e,this.userCode=`
        void main() {
          ivec4 coords = getOutputCoords();
          int x = coords[2];

          int coordX = ${t} - x;
          float outputValue;
          if(coordX >= 0 && coordX < ${t}) {
            outputValue = getImage(coords[0], coords[1], coordX, coords[3]);
          } else {
            outputValue = getImage(coords[0], coords[1], coords[2], coords[3]);
          }
          setOutput(outputValue);
        }
    `}},GH={kernelName:$o,backendName:"webgl",kernelFunc:({inputs:e,backend:t})=>{let{image:n}=e,a=t,r=new HH(n.shape);return a.runWebGLProgram(r,[n],n.dtype)}},Yw="return floor(x);",qH=Ke({opSnippet:Yw,packedOpSnippet:Yw,cpuKernelImpl:kB}),XH={kernelName:Fs,backendName:"webgl",kernelFunc:qH},KH=`
  float s = sign(a) * sign(b);
  int ia = round(a);
  int ib = round(b);
  if (ib != 0) {
    // Windows (D3D) wants guaranteed non-zero int division at compile-time.
    return float(idiv(ia, ib, s));
  } else {
    return NAN;
  }
`,ZH=`
  ivec4 ia = round(a);
  ivec4 ib = round(b);
  bvec4 cond = notEqual(ib, ivec4(0));
  ivec4 result = ivec4(0);
  vec4 s = sign(a) * sign(b);

  // Windows (D3D) wants guaranteed non-zero int division at compile-time.
  if (cond[0]) {
    result[0] = idiv(ia[0], ib[0], s[0]);
  }
  if (cond[1]) {
    result[1] = idiv(ia[1], ib[1], s[1]);
  }
  if (cond[2]) {
    result[2] = idiv(ia[2], ib[2], s[2]);
  }
  if (cond[3]) {
    result[3] = idiv(ia[3], ib[3], s[3]);
  }
  return vec4(result);
`,YH=rn({opSnippet:KH,packedOpSnippet:ZH,dtype:"int32"}),JH={kernelName:$s,backendName:"webgl",kernelFunc:YH},QH=class{constructor(e){this.variableNames=["A"];let t=gn(),[n,a]=e;this.outputShape=e,this.userCode=`
      void main() {
        ivec3 coords = getOutputCoords();
        int texR = coords[0];
        int texC = coords[1];
        int depth = coords[2];
        vec2 uv = (vec2(texC, texR) + halfCR) / vec2(${a}.0, ${n}.0);

        vec4 values = ${t.texture2D}(A, uv);
        float value;
        if (depth == 0) {
          value = values.r;
        } else if (depth == 1) {
          value = values.g;
        } else if (depth == 2) {
          value = values.b;
        } else if (depth == 3) {
          value = values.a;
        }

        setOutput(floor(value * 255.0 + 0.5));
      }
    `}},eG=class{constructor(e){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;let t=gn(),[n,a]=e;this.outputShape=e,this.userCode=`
      void main() {
        ivec3 coords = getOutputCoords();
        int texR = coords[0];
        int texC = coords[1];
        int depth = coords[2];

        vec4 result = vec4(0.);

        for(int row=0; row<=1; row++) {
          for(int col=0; col<=1; col++) {
            texC = coords[1] + row;
            depth = coords[2] + col;

            vec2 uv = (vec2(texC, texR) + halfCR) /
                       vec2(${a}.0, ${n}.0);
            vec4 values = ${t.texture2D}(A, uv);
            float value;
            if (depth == 0) {
              value = values.r;
            } else if (depth == 1) {
              value = values.g;
            } else if (depth == 2) {
              value = values.b;
            } else if (depth == 3) {
              value = values.a;
            }

            result[row * 2 + col] = floor(value * 255.0 + 0.5);
          }
        }

        ${t.output} = result;
      }
    `}},tG={kernelName:Rc,backendName:"webgl",kernelFunc:nG},Yl;function nG(e){let{inputs:t,backend:n,attrs:a}=e,{pixels:r}=t,{numChannels:s}=a,i=typeof HTMLVideoElement!="undefined"&&r instanceof HTMLVideoElement,o=typeof HTMLImageElement!="undefined"&&r instanceof HTMLImageElement,[u,l]=i?[r.videoWidth,r.videoHeight]:[r.width,r.height],d=[l,u],p=[l,u,s];(o||i)&&(Yl==null&&(Yl=document.createElement("canvas").getContext("2d")),Yl.canvas.width=u,Yl.canvas.height=l,Yl.drawImage(r,0,0,u,l),r=Yl.canvas);let c=n.makeTensorInfo(d,"int32");n.texData.get(c.dataId).usage=da.PIXELS,n.gpgpu.uploadPixelDataToTexture(n.getTexture(c.dataId),r);let h=te().getBool("WEBGL_PACK")?new eG(p):new QH(p),m=n.runWebGLProgram(h,[c],"int32");return n.disposeData(c.dataId),m}function aG(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s,bias:i,preluActivationWeights:o}=t,{strides:u,pad:l,dataFormat:d,dilations:p,dimRoundingMode:c,activation:h,leakyreluAlpha:m}=a,f=F.convertConv2DDataFormat(d),A=F.computeConv2DInfo(r.shape,s.shape,u,p,l,c,!1,f),g,y=[];if(A.filterHeight===1&&A.filterWidth===1&&A.dilationHeight===1&&A.dilationWidth===1&&A.strideHeight===1&&A.strideWidth===1&&(A.padInfo.type==="SAME"||A.padInfo.type==="VALID"))g=Lw({x:r,filter:s,convInfo:A,backend:n,bias:i,activation:h,preluActivationWeights:o,leakyreluAlpha:m});else if(te().getBool("WEBGL_CONV_IM2COL")&&r.shape[0]===1)g=Ww({x:r,filter:s,convInfo:A,backend:n,bias:i,activation:h,preluActivationWeights:o,leakyreluAlpha:m});else{let v=i!=null,b=o!=null,w=h==="leakyrelu",N=h?Hh(h,!1):null,C=new Pw(A,v,N,b,w),E=[r,s];if(i&&E.push(i),o&&E.push(o),w){let _=n.makeTensorInfo([],"float32",k.createScalarValue(m,"float32"));E.push(_),y.push(_)}g=n.runWebGLProgram(C,E,"float32")}let x=ye({inputs:{x:g},backend:n,attrs:{shape:A.outShape}});return y.push(g),y.forEach(v=>n.disposeIntermediateTensorInfo(v)),x}var rG={kernelName:fi,backendName:"webgl",kernelFunc:aG};function sG(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,filter:s,bias:i,preluActivationWeights:o}=t,{strides:u,pad:l,dilations:d,dimRoundingMode:p,activation:c,leakyreluAlpha:h}=a,m=[],f=d;f==null&&(f=[1,1]),k.assert(F.eitherStridesOrDilationsAreOne(u,f),()=>`Error in depthwiseConv2d: Either strides or dilations must be 1. Got strides ${u} and dilations '${f}'`);let A=F.computeConv2DInfo(r.shape,s.shape,u,f,l,p,!0),g=te().getBool("WEBGL_PACK_DEPTHWISECONV")&&A.strideWidth<=2&&A.outChannels/A.inChannels==1,y=c?Hh(c,g):null,x=[r,s],v=i!=null,b=o!=null,w=c==="leakyrelu";if(v&&x.push(i),b&&x.push(o),w){let E=n.makeTensorInfo([],"float32",k.createScalarValue(h,"float32"));x.push(E),m.push(E)}let N;g?N=new Hw(A,v,y,b,w):N=new Uw(A,v,y,b,w);let C=n.runWebGLProgram(N,x,"float32");return m.forEach(E=>n.disposeIntermediateTensorInfo(E)),C}var iG={kernelName:mi,backendName:"webgl",kernelFunc:sG},oG=class{constructor(e,t,n){this.sliceDim=e,this.strides=t,this.variableNames=["x","indices"],this.outputShape=n;let a=ut(t.length),r=ut(n.length),s=this.sliceDim>1?"strides[j]":"strides";this.userCode=`
        ${a} strides = ${a}(${this.strides});
         void main() {
          ${r} coords = getOutputCoords();
          int flattenIndex = 0;
          for (int j = 0; j < ${this.sliceDim}; j++) {
            int index = round(getIndices(coords[0], j));
            flattenIndex += index * ${s};
          }
          setOutput(getX(flattenIndex, coords[1]));
        }
      `}};function lG(e){let{inputs:t,backend:n}=e,{params:a,indices:r}=t,s=r.shape,i=s[s.length-1],o=k.sizeFromShape(a.shape),[u,l,d,p]=F.prepareAndValidate(a,r),c=ye({inputs:{x:r},backend:n,attrs:{shape:[l,i]}}),h=ye({inputs:{x:a},backend:n,attrs:{shape:[k.sizeFromShape(a.shape)/d,d]}});if(n.shouldExecuteOnCPU([a,r])||a.dtype==="string"){let g=n.readSync(r.dataId),y=n.bufferSync(a),x=IB(g,y,a.dtype,l,i,d,p,a.shape,o);return n.makeTensorInfo(u,a.dtype,x.values)}let m=new oG(i,p,[l,d]),f=n.runWebGLProgram(m,[h,c],h.dtype),A=ye({inputs:{x:f},backend:n,attrs:{shape:u}});return n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(f),A}var uG={kernelName:Oo,backendName:"webgl",kernelFunc:lG},dG=class{constructor(e,t){this.variableNames=["A","indices"],this.outputShape=t,this.rank=t.length;let n=ut(this.rank),a=pG(e,2);this.userCode=`
      void main() {
        ${n} resRC = getOutputCoords();
        setOutput(getA(${a}));
      }
    `}};function pG(e,t){let n=["resRC.x","resRC.y","resRC.z","resRC.w"],a=[];for(let r=0;r<e.length;r++)r===2?a.push("int(getIndices(resRC.x, resRC.z))"):a.push(`${n[r]}`);return a.join()}function cG(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,indices:s}=t,{axis:i,batchDims:o}=a,u=k.parseAxisParam(i,r.shape)[0],l=F.segment_util.collectGatherOpShapeInfo(r,s,u,o),d=k.sizeFromShape(s.shape),p=[],c=ye({inputs:{x:r},backend:n,attrs:{shape:[l.batchSize,l.outerSize,l.dimSize,l.sliceSize]}}),h=ye({inputs:{x:s},backend:n,attrs:{shape:[l.batchSize,d/l.batchSize]}});p.push(c),p.push(h);let m=[l.batchSize,l.outerSize,d/l.batchSize,l.sliceSize];if(n.shouldExecuteOnCPU([r,s])||r.dtype==="string"){let y=n.bufferSync(h),x=n.bufferSync(c),v=SB(x,y,m);return p.forEach(b=>n.disposeIntermediateTensorInfo(b)),n.makeTensorInfo(l.outputShape,v.dtype,v.values)}let f=new dG(c.shape,m),A=n.runWebGLProgram(f,[c,h],c.dtype);p.push(A);let g=ye({inputs:{x:A},backend:n,attrs:{shape:l.outputShape}});return p.forEach(y=>n.disposeIntermediateTensorInfo(y)),g}var hG={kernelName:Do,backendName:"webgl",kernelFunc:cG},fG="return float(a > b);",mG=`
  return vec4(greaterThan(a, b));
`,AG=rn({opSnippet:fG,packedOpSnippet:mG,cpuKernelImpl:NB,dtype:"bool"}),gG={kernelName:zo,backendName:"webgl",kernelFunc:AG},yG="return float(a >= b);",xG=`
  return vec4(greaterThanEqual(a, b));
`,bG=rn({opSnippet:yG,packedOpSnippet:xG,dtype:"bool",cpuKernelImpl:TB}),vG={kernelName:Os,backendName:"webgl",kernelFunc:bG};function wG(e){let{inputs:t,backend:n}=e,{input:a}=t;return Zw(a,!0,n)}var kG={kernelName:dc,backendName:"webgl",kernelFunc:wG},IG="return float(!isnan(x) && !isinf(x));",SG=Ke({opSnippet:IG,dtype:"bool"}),NG={kernelName:_o,backendName:"webgl",kernelFunc:SG},TG="return float(isinf(x));",CG=Ke({opSnippet:TG,dtype:"bool"}),EG={kernelName:Po,backendName:"webgl",kernelFunc:CG},RG="return float(isnan(x));",MG=Ke({opSnippet:RG,dtype:"bool"}),FG={kernelName:Lo,backendName:"webgl",kernelFunc:MG},$G="return float(a < b);",DG=`
  return vec4(lessThan(a, b));
`,OG=rn({opSnippet:$G,packedOpSnippet:DG,cpuKernelImpl:CB,dtype:"bool"}),zG={kernelName:Wo,backendName:"webgl",kernelFunc:OG},_G="return float(a <= b);",PG=`
  return vec4(lessThanEqual(a, b));
`,LG=rn({opSnippet:_G,packedOpSnippet:PG,cpuKernelImpl:EB,dtype:"bool"}),WG={kernelName:Bo,backendName:"webgl",kernelFunc:LG};function BG(e){let{backend:t,attrs:n}=e,{start:a,stop:r,num:s}=n,i=RB(a,r,s);return t.makeTensorInfo([i.length],"float32",i)}var VG={kernelName:cc,backendName:"webgl",kernelFunc:BG},jG=`if (x < 0.0) return NAN;
  return log(x);`,UG=`
  vec4 result = log(x);
  vec4 isNaN = vec4(lessThan(x, vec4(0.0)));
  result.r = isNaN.r == 1.0 ? NAN : result.r;
  result.g = isNaN.g == 1.0 ? NAN : result.g;
  result.b = isNaN.b == 1.0 ? NAN : result.b;
  result.a = isNaN.a == 1.0 ? NAN : result.a;

  return result;
`,HG=Ke({opSnippet:jG,packedOpSnippet:UG,cpuKernelImpl:MB}),GG={kernelName:Ps,backendName:"webgl",kernelFunc:HG},qG="return log(1.0 + x);",XG=Ke({opSnippet:qG}),KG={kernelName:Vo,backendName:"webgl",kernelFunc:XG},ZG="return float(a >= 1.0 && b >= 1.0);",YG=`
  return vec4(
    vec4(greaterThanEqual(a, vec4(1.0))) *
    vec4(greaterThanEqual(b, vec4(1.0))));
`,JG=rn({opSnippet:ZG,packedOpSnippet:YG,dtype:"bool"}),QG={kernelName:jo,backendName:"webgl",kernelFunc:JG},eq="return float(!(x >= 1.0));",tq=Ke({opSnippet:eq}),nq={kernelName:Lu,backendName:"webgl",kernelFunc:tq},aq="return float(a >= 1.0 || b >= 1.0);",rq=`
  return min(
    vec4(greaterThanEqual(a, vec4(1.0))) +
    vec4(greaterThanEqual(b, vec4(1.0))),
    vec4(1.0));
`,sq=rn({opSnippet:aq,packedOpSnippet:rq,dtype:"bool"}),iq={kernelName:Wu,backendName:"webgl",kernelFunc:sq},oq=class{constructor(e,t,n,a,r){this.variableNames=["x"],this.outputShape=[];let s=t,i=e[3]-1;this.outputShape=e;let o,u=`float(${n}) + float(${a}) * sum`;r===.5?o=`inversesqrt(${u})`:r===1?o=`1.0/(${u})`:o=`exp(log(${u}) * float(-${r}));`,this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int r = coords[1];
        int c = coords[2];
        int d = coords[3];
        float x = getX(b, r, c, d);
        float sum = 0.0;
        for (int j = -${s}; j <= ${s}; j++) {
          int idx = d + j;
          if (idx >= 0 && idx <=  ${i}) {
            float z = getX(b, r, c, idx);
            sum += z * z;
          }
        }
        float val = x * ${o};
        setOutput(val);
      }
    `}},lq=class{constructor(e,t,n,a,r){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;let s=t,i=e[3]-1;this.outputShape=e;let o,u=`float(${n}) + float(${a}) * sum`;r===.5?o=`inversesqrt(${u})`:r===1?o=`1.0/(${u})`:o=`exp(log(${u}) * float(-${r}));`,this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords.x;
        int r = coords.y;
        int c = coords.z;
        int d = coords.w;

        bool hasNextCol = d < ${this.outputShape[3]};
        bool hasNextRow = c < ${this.outputShape[2]};

        vec4 sum = vec4(0.);
        vec4 xFragAtOutputCoords = getX(b, r, c, d);

        vec4 xAtOutputCoords = vec4(
          getChannel(xFragAtOutputCoords, vec2(c, d)),
          hasNextCol ?
            getChannel(xFragAtOutputCoords, vec2(c, d + 1)) : 0.0,
          hasNextRow ?
            getChannel(xFragAtOutputCoords , vec2(c + 1, d)) : 0.0,
          (hasNextRow && hasNextCol) ?
            getChannel(xFragAtOutputCoords, vec2(c + 1, d + 1)) : 0.0
        );

        int firstChannel = d - ${s};
        vec2 cache = vec2(0.);
        if(firstChannel >= 0){
          vec4 firstChannelFrag = getX(b, r, c, firstChannel);
          cache.x = getChannel(firstChannelFrag, vec2(c, firstChannel));
            if(hasNextRow){
              cache.y = getChannel(firstChannelFrag, vec2(c + 1, firstChannel));
            }
        }

        ivec2 depth = ivec2(d, d + 1);
        for (int j = - ${s}; j <= ${s}; j++) {
          ivec2 idx = depth + j;
          bvec2 aboveLowerBound = greaterThanEqual(idx, ivec2(0));
          bvec2 belowUpperBound = lessThanEqual(idx, ivec2(${i}));

          bool depthInRange = aboveLowerBound.x && belowUpperBound.x;
          bool depthPlusOneInRange = aboveLowerBound.y && belowUpperBound.y;

          if(depthInRange || depthPlusOneInRange){
            vec4 z = vec4(0.);
            vec4 xFragAtCurrentDepth;
            z.xz = cache.xy;
            if(depthPlusOneInRange && hasNextCol){
              xFragAtCurrentDepth = idx.y != d ?
                getX(b, r, c, idx.y) : xFragAtOutputCoords;
              z.y = getChannel(xFragAtCurrentDepth, vec2(c, idx.y));
              if(hasNextRow){
                z.w = getChannel(xFragAtCurrentDepth, vec2(c + 1, idx.y));
              }
            }
            cache.xy = z.yw;
            sum += z * z;
          }
        }
        vec4 result = xAtOutputCoords * ${o};
        setOutput(result);
      }
    `}},uq=e=>{let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{depthRadius:s,bias:i,alpha:o,beta:u}=a,l=te().getBool("WEBGL_PACK_NORMALIZATION")?new lq(r.shape,s,i,o,u):new oq(r.shape,s,i,o,u);return n.runWebGLProgram(l,[r],r.dtype)},dq={kernelName:Bu,backendName:"webgl",kernelFunc:uq},pq=class{constructor(e,t,n,a,r){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=e,this.depth=e[3],this.depthRadius=t,this.bias=n,this.alpha=a,this.beta=r,this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int r = coords[1];
        int c = coords[2];

        float result = 0.0;
        for (int d = 0; d < ${this.depth}; ++d) {
          int depthBegin = int(max(0.0, float(d - ${t})));
          int depthEnd = int(min(float(${this.depth}),
              float(d + ${t} + 1)));

          const int MIN_DEPTH_BEGIN = 0;
          const int MAX_DEPTH_END = ${this.depth};

          float norm = 0.0;
          for (int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k) {
            if (k < depthBegin){
              continue;
            }
            else if (k >= depthBegin && k < depthEnd) {
              norm += getInputImage(b, r, c, k) * getInputImage(b, r, c, k);
            }
            else {
              break;
            }
          }

          norm = float(${a}) * norm + float(${n});

          for(int k = MIN_DEPTH_BEGIN; k < MAX_DEPTH_END; ++k){
            if (k < depthBegin){
              continue;
            }
            else if (k >= depthBegin && k < depthEnd){
              float dyi = -2.0 * float(${a})
                * float(${r})
                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)
                / norm;
              if (k == d) {
                dyi += pow(norm, -1.0 * ${r});
              }
              if (k == coords[3]) {
                dyi *= getDy(b, r, c, d);
                result += dyi;
              }
            }
            else {
              break;
            }
          }
      }
      setOutput(result);
      }
    `}},cq=e=>{let{inputs:t,backend:n,attrs:a}=e,{x:r,y:s,dy:i}=t,{depthRadius:o,bias:u,alpha:l,beta:d}=a,p=new pq(r.shape,o,u,l,d);return n.runWebGLProgram(p,[r,s,i],r.dtype)},hq={kernelName:hc,backendName:"webgl",kernelFunc:cq};function fq(e,t,n,a){let r=k.sizeFromShape(t),s=k.sizeFromShape(e.shape)/r,i=ye({inputs:{x:e},attrs:{shape:[s,r]},backend:a}),o=Wi(i,e.dtype,"max",a),u=ye({inputs:{x:o},attrs:{shape:n},backend:a});return a.disposeIntermediateTensorInfo(i),a.disposeIntermediateTensorInfo(o),u}function Jw(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{reductionIndices:s,keepDims:i}=a,o=r.shape.length,u=k.parseAxisParam(s,r.shape),l=u,d=F.getAxesPermutation(l,o),p=d!=null,c=n.shouldExecuteOnCPU([r]),h=r;if(p){if(c){let y=n.texData.get(h.dataId).values,x=new Array(o);for(let w=0;w<x.length;w++)x[w]=r.shape[d[w]];let v=HA(y,r.shape,r.dtype,d,x);h=n.makeTensorInfo(x,r.dtype);let b=n.texData.get(h.dataId);b.values=v}else h=Gh(r,d,n);l=F.getInnerMostAxes(l.length,o)}F.assertAxesAreInnerMostDims("max",l,o);let[m,f]=F.computeOutAndReduceShapes(h.shape,l),A=m;i&&(A=F.expandShapeToKeepDim(m,u));let g;if(c){let y=n.texData.get(h.dataId).values,x=FB(y,k.sizeFromShape(f),A,r.dtype);g=n.makeTensorInfo(A,r.dtype);let v=n.texData.get(g.dataId);v.values=x}else g=fq(h,f,A,n);return p&&n.disposeIntermediateTensorInfo(h),g}var mq={kernelName:Ls,backendName:"webgl",kernelFunc:Jw},Aq=gw+`
  return max(a, b);
`,gq=`
  vec4 result = vec4(max(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+Uh+`
  return result;
`,yq=rn({opSnippet:Aq,packedOpSnippet:gq,cpuKernelImpl:$B}),xq={kernelName:Ws,backendName:"webgl",kernelFunc:yq};function bq(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t;Vl(r,"maxPool");let{filterSize:s,strides:i,pad:o,dimRoundingMode:u}=a,l=1;k.assert(F.eitherStridesOrDilationsAreOne(i,l),()=>`Error in maxPool: Either strides or dilations must be 1. Got strides ${i} and dilations '${l}'`);let d=F.computePool2DInfo(r.shape,s,i,l,o,u);if(d.filterWidth===1&&d.filterHeight===1&&k.arraysEqual(d.inShape,d.outShape))return Xn({inputs:{x:r},backend:n});let p=new Od(d,"max",!1);return n.runWebGLProgram(p,[r],r.dtype)}var vq={kernelName:Bs,backendName:"webgl",kernelFunc:bq};function wq(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{filterSize:s,strides:i,pad:o,dataFormat:u,dimRoundingMode:l}=a,d=[1,1,1],p=F.computePool3DInfo(r.shape,s,i,d,o,l,u),c=new XA(p,"max",!1);return n.runWebGLProgram(c,[r],r.dtype)}var kq={kernelName:Vu,backendName:"webgl",kernelFunc:wq},Iq=class{constructor(e){this.variableNames=["dy","maxPos"],this.outputShape=e.inShape;let t=e.strideHeight,n=e.strideWidth,a=e.dilationHeight,r=e.effectiveFilterHeight,s=e.effectiveFilterWidth,i=r-1-e.padInfo.top,o=s-1-e.padInfo.left,u=r*s-1;this.userCode=`
      const ivec2 pads = ivec2(${i}, ${o});

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];

        ivec2 dyRCCorner = coords.yz - pads;
        int dyRCorner = dyRCCorner.x;
        int dyCCorner = dyRCCorner.y;

        // Convolve dy(?, ?, d) with pos mask(:, :, d) to get dx(xR, xC, d).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;
        for (int wR = 0; wR < ${r};
          wR += ${a}) {
          float dyR = float(dyRCorner + wR) / ${t}.0;

          if (dyR < 0.0 || dyR >= ${e.outHeight}.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < ${s}; wC++) {
            float dyC = float(dyCCorner + wC) / ${n}.0;

            if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            float dyValue = getDy(b, idyR, idyC, d);
            int maxPosValue = ${u} - int(getMaxPos(b, idyR, idyC, d));

            // Get the current value, check it against the value from the
            // position matrix.
            int curPosValue = wR * ${s} + wC;
            float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);

            dotProd += dyValue * mask;
          }
        }
        setOutput(dotProd);
      }
    `}},Sq=class{constructor(e){this.variableNames=["dy","maxPos"],this.outputShape=e.inShape;let t=e.strideDepth,n=e.strideHeight,a=e.strideWidth,r=e.dilationDepth,s=e.dilationHeight,i=e.dilationWidth,o=e.effectiveFilterDepth,u=e.effectiveFilterHeight,l=e.effectiveFilterWidth,d=o-1-e.padInfo.front,p=u-1-e.padInfo.top,c=l-1-e.padInfo.left,h=o*u*l-1;this.userCode=`
      const ivec3 pads = ivec3(${d}, ${p}, ${c});

      void main() {
        ivec5 coords = getOutputCoords();
        int batch = coords.x;
        int ch = coords.u;

        ivec3 dyCorner = ivec3(coords.y, coords.z, coords.w) - pads;
        int dyDCorner = dyCorner.x;
        int dyRCorner = dyCorner.y;
        int dyCCorner = dyCorner.z;

        // Convolve dy(?, ?, ?, ch) with pos mask(:, :, :, d) to get
        // dx(xD, xR, xC, ch).
        // ? = to be determined. : = across all values in that axis.
        float dotProd = 0.0;

        for (int wD = 0; wD < ${o};
           wD += ${r}) {
          float dyD = float(dyDCorner + wD) / ${t}.0;

          if (dyD < 0.0 || dyD >= ${e.outDepth}.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < ${u};
              wR += ${s}) {
            float dyR = float(dyRCorner + wR) / ${n}.0;

            if (dyR < 0.0 || dyR >= ${e.outHeight}.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < ${l};
                wC += ${i}) {
              float dyC = float(dyCCorner + wC) / ${a}.0;

              if (dyC < 0.0 || dyC >= ${e.outWidth}.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              float dyValue = getDy(batch, idyD, idyR, idyC, ch);
              int maxPosValue = ${h} -
                  int(getMaxPos(batch, idyD, idyR, idyC, ch));

              // Get the current value, check it against the value from the
              // position matrix.
              int curPosValue =
                  wD * ${u} * ${l} +
                  wR * ${l} + wC;
              float mask = float(maxPosValue == curPosValue ? 1.0 : 0.0);

              dotProd += dyValue * mask;
            }
          }
        }
        setOutput(dotProd);
      }
    `}};function Nq(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s}=t,i=s,{filterSize:o,strides:u,pad:l,dimRoundingMode:d}=a,p=[1,1,1],c=F.computePool3DInfo(i.shape,o,u,p,l,d),h=new XA(c,"max",!0),m=n.runWebGLProgram(h,[i],i.dtype),f=new Sq(c),A=n.runWebGLProgram(f,[r,m],i.dtype);return n.disposeIntermediateTensorInfo(m),A}var Tq={kernelName:mc,backendName:"webgl",kernelFunc:Nq};function Cq(e){let{inputs:t,backend:n,attrs:a}=e,{dy:r,input:s,output:i}=t,o=s;Vl([s,i],"maxPoolGrad");let{filterSize:u,strides:l,pad:d,dimRoundingMode:p}=a,c=F.computePool2DInfo(o.shape,u,l,1,d,p),h=!0,m=new Od(c,"max",h),f=n.runWebGLProgram(m,[o],o.dtype),A=new Iq(c),g=n.runWebGLProgram(A,[r,f],o.dtype);return n.disposeIntermediateTensorInfo(f),g}var Eq={kernelName:fc,backendName:"webgl",kernelFunc:Cq};function Rq(e,t,n,a){let r=new Od(n,"max",!1),s=a.runWebGLProgram(r,[e],"float32");r=new Od(n,"max",!0,!0,t);let i=a.runWebGLProgram(r,[e],"float32");return[s,i]}var Mq={kernelName:Ac,backendName:"webgl",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{x:a}=e,{filterSize:r,strides:s,pad:i,includeBatchInIndex:o}=t,u=n;k.assert(a.shape.length===4,()=>`Error in maxPool: input must be rank 4 but got rank ${a.shape.length}.`);let l=[1,1];k.assert(F.eitherStridesOrDilationsAreOne(s,l),()=>`Error in maxPool: Either strides or dilations must be 1. Got strides ${s} and dilations '${l}'`);let d=F.computePool2DInfo(a.shape,r,s,l,i),[p,c]=Rq(a,o,d,u);return[p,c]}};function Fq(e,t,n,a){let r=k.sizeFromShape(t),s=k.sizeFromShape(e.shape)/r,i=ye({inputs:{x:e},attrs:{shape:[s,r]},backend:a}),o=Wi(i,"float32","mean",a),u=ye({inputs:{x:o},attrs:{shape:n},backend:a});return a.disposeIntermediateTensorInfo(i),a.disposeIntermediateTensorInfo(o),u}var $q={kernelName:Vs,backendName:"webgl",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{x:a}=e,{keepDims:r,axis:s}=t,i=n,o=a.shape.length,u=k.parseAxisParam(s,a.shape),l=u,d=F.getAxesPermutation(l,o),p=d!=null,c=i.shouldExecuteOnCPU([a]),h=[],m=a;if(p){if(c){let x=i.texData.get(m.dataId).values,v=new Array(o);for(let N=0;N<v.length;N++)v[N]=a.shape[d[N]];let b=HA(x,a.shape,a.dtype,d,v);m=i.makeTensorInfo(v,a.dtype);let w=i.texData.get(m.dataId);w.values=b}else m=Gh(a,d,i);h.push(m),l=F.getInnerMostAxes(l.length,o)}F.assertAxesAreInnerMostDims("sum",l,o);let[f,A]=F.computeOutAndReduceShapes(m.shape,l),g=f;r&&(g=F.expandShapeToKeepDim(f,u));let y=Fq(m,A,g,i);for(let x of h)i.disposeIntermediateTensorInfo(x);return y}};function Dq(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a,o=r.shape.length,u=k.parseAxisParam(s,r.shape),l=u,d=F.getAxesPermutation(l,o),p=r;d!=null&&(p=xn({inputs:{x:r},backend:n,attrs:{perm:d}}),l=F.getInnerMostAxes(l.length,r.shape.length)),F.assertAxesAreInnerMostDims("min",l,o);let[c,h]=F.computeOutAndReduceShapes(p.shape,l),m=k.sizeFromShape(h),f=ye({inputs:{x:p},backend:n,attrs:{shape:[-1,m]}}),A=Wi(f,f.dtype,"min",n),g;if(i){let y=F.expandShapeToKeepDim(c,u);g=ye({inputs:{x:A},backend:n,attrs:{shape:y}})}else g=ye({inputs:{x:A},backend:n,attrs:{shape:c}});return n.disposeIntermediateTensorInfo(f),n.disposeIntermediateTensorInfo(A),d!=null&&n.disposeIntermediateTensorInfo(p),g}var Oq={kernelName:js,backendName:"webgl",kernelFunc:Dq},zq=gw+`
  return min(a, b);
`,_q=`
  vec4 result = vec4(min(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+Uh+`
  return result;
`,Pq=rn({opSnippet:zq,packedOpSnippet:_q,cpuKernelImpl:DB}),Lq={kernelName:Us,backendName:"webgl",kernelFunc:Pq},Wq=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=t.map((l,d)=>l[0]+e[d]+l[1]);let a=e.length,r=ut(a),s=t.map(l=>l[0]).join(","),i=t.map((l,d)=>l[0]+e[d]).join(","),o=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,a),u=n==="reflect"?0:1;if(a===1){this.userCode=`
        int start = ${s};
        int end = ${i};

        void main() {
          int outC = getOutputCoords();
          if (outC < start) {
            outC = start * 2 - outC - ${u};
          } else if(outC >= end) {
            outC = (end - 1) * 2 - outC + ${u};
          }
          setOutput(getX(outC - start));
        }
      `;return}this.userCode=`
      ${r} start = ${r}(${s});
      ${r} end = ${r}(${i});

      void main() {
        ${r} outC = getOutputCoords();
        for (int i = 0; i < ${a}; i++) {
          if (outC[i] < start[i]) {
            outC[i] = start[i] * 2 - outC[i] - ${u};
          } else if(outC[i] >= end[i]) {
            outC[i] = (end[i] - 1) * 2 - outC[i] + ${u};
          }
        }
        ${r} coords = outC - start;
        setOutput(getX(${o}));
      }
    `}},Bq=class{constructor(e,t,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.map((h,m)=>h[0]+e[m]+h[1]);let a=e.length,r=ut(a),s=t.map(h=>h[0]).join(","),i=t.map((h,m)=>h[0]+e[m]).join(","),o=yn("rc",a),u=yn("source",a),l=`${o[a-1]} < ${this.outputShape[a-1]}`,d=a===1?"source":`vec2(${u.slice(-2).join()})`,p=n==="reflect"?0:1,c="";if(a===1){let h=`
        ${r} source = rc;
        if (source < start) {
          source = start * 2 - source - ${p};
        } else if (source >= end) {
          source = (end - 1) * 2 - source + ${p};
        }
        source -= start;
      `;c=`
        ${r} rc = outputLoc;
        ${h}
        result[0] = getChannel(getX(${u.join()}), ${d});
        ${o[a-1]} += 1;
        if(${l}) {
          ${h}
          result[1] = getChannel(getX(${u.join()}), ${d});
        }
      `}else{let h=`
        ${r} source = rc;
        ${r} lt = ${r}(lessThan(source, start));
        ${r} gte = ${r}(greaterThanEqual(source, end));
        ${r} orig = 1 - (lt + gte);
        source = orig * source +
                lt * (start * 2 - source - ${p}) +
                gte * ((end - 1) * 2 - source + ${p});
        source -= start;
      `;c=`
        ${r} rc = outputLoc;
        ${h}
        result[0] = getChannel(getX(${u.join()}), ${d});
        ${o[a-1]} += 1;
        if(${l}) {
          ${h}
          result[1] = getChannel(getX(${u.join()}), ${d});
        }
        rc = outputLoc;
        ${o[a-2]} += 1;
        if(${o[a-2]} < ${this.outputShape[a-2]}) {
          ${h}
          result[2] = getChannel(getX(${u.join()}), ${d});
          ${o[a-1]} += 1;
          if(${l}) {
            ${h}
            result[3] = getChannel(getX(${u.join()}), ${d});
          }
        }
      `}this.userCode=`
      const ${r} start = ${r}(${s});
      const ${r} end = ${r}(${i});

      void main() {
        ${r} outputLoc = getOutputCoords();
        vec4 result = vec4(0.);
        ${c}
        setOutput(result);
      }
    `}},Vq=({inputs:e,backend:t,attrs:n})=>{let{x:a}=e,{paddings:r,mode:s}=n,i=te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Bq(a.shape,r,s):new Wq(a.shape,r,s);return t.runWebGLProgram(i,[a],a.dtype)},jq={kernelName:Hs,backendName:"webgl",kernelFunc:Vq},Uq=`if (b == 0.0) return NAN;
  return mod(a, b);`,Hq=`
  vec4 result = mod(a, b);
  vec4 isNaN = vec4(equal(b, vec4(0.0)));
  `+Uh+`
  return result;
`,Gq=rn({opSnippet:Uq,packedOpSnippet:Hq}),qq={kernelName:Uo,backendName:"webgl",kernelFunc:Gq},Xq=class{constructor(e,t,n){this.variableNames=["probs"],this.outputShape=[e,n],this.userCode=`
      uniform float seed;

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];

        float r = random(seed);
        float cdf = 0.0;

        for (int i = 0; i < ${t-1}; i++) {
          cdf += getProbs(batch, i);

          if (r < cdf) {
            setOutput(float(i));
            return;
          }
        }

        // If no other event happened, last event happened.
        setOutput(float(${t-1}));
      }
    `}getCustomSetupFunc(e){return(t,n)=>{this.seedLoc==null&&(this.seedLoc=t.getUniformLocation(n,"seed")),t.gl.uniform1f(this.seedLoc,e)}}},Kq=`
if (a == b) {
  return 1.0;
};
return a / b;`,Zq=`
  // vec4 one = vec4(equal(a, b));
  // return one + (vec4(1.0) - one) * a / b;
  vec4 result = a / b;
  if(a.x == b.x) {
    result.x = 1.;
  }
  if(a.y == b.y) {
    result.y = 1.;
  }
  if(a.z == b.z) {
    result.z = 1.;
  }
  if(a.w == b.w) {
    result.w = 1.;
  }

  return result;
`,Qw=rn({opSnippet:Kq,packedOpSnippet:Zq,checkOutOfBounds:!0}),Yq={kernelName:Rs,backendName:"webgl",kernelFunc:Qw},e6="return a - b;",t6=rn({opSnippet:e6,packedOpSnippet:e6,supportsComplex:!0,cpuKernelImpl:XB}),Jq={kernelName:ui,backendName:"webgl",kernelFunc:t6};function n6(e){let{inputs:t,backend:n,attrs:a}=e,{logits:r}=t,{dim:s}=a,i=k.parseAxisParam([s],r.shape),o=Jw({inputs:{x:r},backend:n,attrs:{reductionIndices:i,keepDims:!1}}),u=F.expandShapeToKeepDim(o.shape,i),l=ye({inputs:{x:o},backend:n,attrs:{shape:u}}),d=t6({inputs:{a:r,b:l},backend:n}),p=qw({inputs:{x:d},backend:n}),c=qh({inputs:{x:p},backend:n,attrs:{axis:i,keepDims:!1}}),h=ye({inputs:{x:c},backend:n,attrs:{shape:u}}),m=Qw({inputs:{a:p,b:h},backend:n});return n.disposeIntermediateTensorInfo(o),n.disposeIntermediateTensorInfo(l),n.disposeIntermediateTensorInfo(d),n.disposeIntermediateTensorInfo(p),n.disposeIntermediateTensorInfo(c),n.disposeIntermediateTensorInfo(h),m}var Qq={kernelName:oi,backendName:"webgl",kernelFunc:n6};function eX(e){let{inputs:t,backend:n,attrs:a}=e,{logits:r}=t,{numSamples:s,seed:i,normalized:o}=a,u=o?r:n6({inputs:{logits:r},backend:n,attrs:{dim:r.shape.length-1}}),l=u.shape[0],d=u.shape[1],p=new Xq(l,d,s),c=p.getCustomSetupFunc(i),h=n.runWebGLProgram(p,[u],"int32",c);return o||n.disposeIntermediateTensorInfo(u),h}var tX={kernelName:gc,backendName:"webgl",kernelFunc:eX},a6="return -x;";function nX(e){let{inputs:t,backend:n}=e,{x:a}=t;if(n.shouldExecuteOnCPU([a])){let s=n.texData.get(a.dataId),[i,o]=zB(s.values,a.shape,a.dtype);return n.makeTensorInfo(o,a.dtype,i)}let r;return te().getBool("WEBGL_PACK_UNARY_OPERATIONS")?r=new ql(a.shape,a6):r=new Yr(a.shape,a6),n.runWebGLProgram(r,[a],a.dtype)}var aX={kernelName:Ho,backendName:"webgl",kernelFunc:nX},rX=Za.nonMaxSuppressionV3Impl;function sX(e){F.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:a}=e,{boxes:r,scores:s}=t,{maxOutputSize:i,iouThreshold:o,scoreThreshold:u}=a,l=n.readSync(r.dataId),d=n.readSync(s.dataId),{selectedIndices:p}=rX(l,d,i,o,u);return n.makeTensorInfo([p.length],"int32",new Int32Array(p))}var iX={kernelName:qo,backendName:"webgl",kernelFunc:sX},oX=Za.nonMaxSuppressionV4Impl;function lX(e){F.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:a}=e,{boxes:r,scores:s}=t,{maxOutputSize:i,iouThreshold:o,scoreThreshold:u,padToMaxOutputSize:l}=a,d=n.readSync(r.dataId),p=n.readSync(s.dataId),{selectedIndices:c,validOutputs:h}=oX(d,p,i,o,u,l);return[n.makeTensorInfo([c.length],"int32",new Int32Array(c)),n.makeTensorInfo([],"int32",new Int32Array([h]))]}var uX={kernelName:Xo,backendName:"webgl",kernelFunc:lX},dX=Za.nonMaxSuppressionV5Impl;function pX(e){F.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");let{inputs:t,backend:n,attrs:a}=e,{boxes:r,scores:s}=t,{maxOutputSize:i,iouThreshold:o,scoreThreshold:u,softNmsSigma:l}=a,d=n.readSync(r.dataId),p=n.readSync(s.dataId),c=i,h=o,m=u,f=l,{selectedIndices:A,selectedScores:g}=dX(d,p,c,h,m,f);return[n.makeTensorInfo([A.length],"int32",new Int32Array(A)),n.makeTensorInfo([g.length],"float32",new Float32Array(g))]}var cX={kernelName:Ko,backendName:"webgl",kernelFunc:pX},hX=class{constructor(e,t,n,a){this.variableNames=["indices"],this.outputShape=[e,t],this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int index = round(getIndices(coords.x));
        setOutput(mix(float(${a}), float(${n}),
                      float(index == coords.y)));
      }
    `}},fX=e=>{let{inputs:t,backend:n,attrs:a}=e,{indices:r}=t,{depth:s,onValue:i,offValue:o}=a,u=k.sizeFromShape(r.shape),l=new hX(u,s,i,o),d=ye({inputs:{x:r},backend:n,attrs:{shape:[u]}}),p=n.runWebGLProgram(l,[d],r.dtype);n.disposeIntermediateTensorInfo(d);let c=[...r.shape,s],h=ye({inputs:{x:p},backend:n,attrs:{shape:c}});return n.disposeIntermediateTensorInfo(p),h},mX={kernelName:qs,backendName:"webgl",kernelFunc:fX};function Jh(e){let{inputs:t,backend:n}=e,{x:a}=t;if(a.dtype==="complex64"){let r=_d({inputs:{input:a},backend:n}),s=Jh({inputs:{x:r},backend:n}),i=Yh({inputs:{input:a},backend:n}),o=Jh({inputs:{x:i},backend:n}),u=Jr({inputs:{real:s,imag:o},backend:n});return n.disposeIntermediateTensorInfo(r),n.disposeIntermediateTensorInfo(s),n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(o),u}else return JA({attrs:{shape:a.shape,dtype:a.dtype,value:a.dtype==="string"?"":0},backend:n})}var AX={kernelName:hl,backendName:"webgl",kernelFunc:Jh};function r6(e){let{inputs:t,backend:n}=e,{x:a}=t;if(a.dtype==="string")throw new Error("onesLike is not supported under string dtype");if(a.dtype==="complex64"){let r=_d({inputs:{input:a},backend:n}),s=r6({inputs:{x:r},backend:n}),i=Yh({inputs:{input:a},backend:n}),o=Jh({inputs:{x:i},backend:n}),u=Jr({inputs:{real:s,imag:o},backend:n});return n.disposeIntermediateTensorInfo(r),n.disposeIntermediateTensorInfo(s),n.disposeIntermediateTensorInfo(i),n.disposeIntermediateTensorInfo(o),u}else return JA({attrs:{shape:a.shape,dtype:a.dtype,value:1},backend:n})}var gX={kernelName:Zo,backendName:"webgl",kernelFunc:r6};function yX(e){let{inputs:t,backend:n,attrs:a}=e,{axis:r}=a;if(t.length===1)return YA({inputs:{input:t[0]},backend:n,attrs:{dim:r}});let s=t[0].shape,i=t[0].dtype;t.forEach(d=>{k.assertShapesMatch(s,d.shape,"All tensors passed to stack must have matching shapes"),k.assert(i===d.dtype,()=>"All tensors passed to stack must have matching dtypes")});let o=[],u=t.map(d=>{let p=YA({inputs:{input:d},backend:n,attrs:{dim:r}});return o.push(p),p}),l=_w({inputs:u,backend:n,attrs:{axis:r}});return o.forEach(d=>n.disposeIntermediateTensorInfo(d)),l}var xX={kernelName:Yo,backendName:"webgl",kernelFunc:yX},bX=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=t.map((u,l)=>u[0]+e[l]+u[1]);let a=e.length,r=ut(a),s=t.map(u=>u[0]).join(","),i=t.map((u,l)=>u[0]+e[l]).join(","),o=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,a);if(a===1){this.userCode=`
        int start = ${s};
        int end = ${i};
        uniform float value;

        void main() {
          int outC = getOutputCoords();
          if (outC < start || outC >= end) {
            setOutput(value);
          } else {
            setOutput(getX(outC - start));
          }
        }
      `;return}this.userCode=`
      ${r} start = ${r}(${s});
      ${r} end = ${r}(${i});
      uniform float value;

      void main() {
        ${r} outC = getOutputCoords();
        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {
          setOutput(value);
        } else {
          ${r} coords = outC - start;
          setOutput(getX(${o}));
        }
      }
    `}getCustomSetupFunc(e){return(t,n)=>{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}},vX=class{constructor(e,t,n){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.map((m,f)=>m[0]+e[f]+m[1]);let a=e.length,r=ut(a),s=t.map(m=>m[0]).join(","),i=t.map((m,f)=>m[0]+e[f]).join(","),o=yn("rc",a),u=yn("source",a),l=`${o[a-1]} < ${this.outputShape[a-1]}`,d=a===1?"source":`vec2(${u.slice(-2).join()})`,p=[`${r} rc = outputLoc;`,`${o[a-1]} += 1;
       if(${l}) {
      `,a===1?"":`}
       rc = outputLoc;
       ${o[a-2]} += 1;
       if(${o[a-2]} < ${this.outputShape[a-2]}) {`,a===1?"":`  ${o[a-1]} += 1;
         if(${l}) {`],c=a===1?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",h="";for(let m=0,f=a===1?2:4;m<f;m++)h+=`
        ${p[m]}
        if (${c}) {
          result[${m}] = float(value);
        } else {
          ${r} source = rc - start;
          result[${m}] = getChannel(getX(${u.join()}), ${d});
        }
      `;h+=a===1?"} ":"}}",this.userCode=`
      const ${r} start = ${r}(${s});
      const ${r} end = ${r}(${i});
      uniform float value;

      void main() {
        ${r} outputLoc = getOutputCoords();
        vec4 result = vec4(0.);
        ${h}
        setOutput(result);
      }
    `}getCustomSetupFunc(e){return(t,n)=>{this.valueLoc==null&&(this.valueLoc=t.getUniformLocationNoThrow(n,"value")),t.gl.uniform1f(this.valueLoc,e)}}},s6=e=>{let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{paddings:s,constantValue:i}=a,o=te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new vX(r.shape,s,i):new bX(r.shape,s,i),u=o.getCustomSetupFunc(i);return n.runWebGLProgram(o,[r],r.dtype,u)},wX={kernelName:Xs,backendName:"webgl",kernelFunc:s6},kX=`
  if(a < 0.0 && floor(b) < b){
    return NAN;
  }
  if (b == 0.0) {
    return 1.0;
  }
  return (round(mod(b, 2.0)) != 1) ?
      pow(abs(a), b) : sign(a) * pow(abs(a), b);
`,IX=`
  // isModRound1 has 1 for components with round(mod(b, 2.0)) == 1, 0 otherwise.
  vec4 isModRound1 = vec4(equal(round(mod(b, 2.0)), ivec4(1)));
  vec4 multiplier = sign(a) * isModRound1 + (vec4(1.0) - isModRound1);
  vec4 result = multiplier * pow(abs(a), b);

  // Ensure that a^0 = 1, including 0^0 = 1 as this correspond to TF and JS
  bvec4 isExpZero = equal(b, vec4(0.0));
  result.r = isExpZero.r ? 1.0 : result.r;
  result.g = isExpZero.g ? 1.0 : result.g;
  result.b = isExpZero.b ? 1.0 : result.b;
  result.a = isExpZero.a ? 1.0 : result.a;

  vec4 isNaN = vec4(lessThan(a, vec4(0.0))) * vec4(lessThan(floor(b), b));
  `+Uh+`
  return result;
`,SX=rn({opSnippet:kX,packedOpSnippet:IX}),NX={kernelName:Ks,backendName:"webgl",kernelFunc:SX};function TX(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{axis:s,keepDims:i}=a,o=r.shape.length,u=[],l=k.parseAxisParam(s,r.shape),d=l,p=F.getAxesPermutation(d,o),c=r;p!=null&&(c=xn({inputs:{x:r},backend:n,attrs:{perm:p}}),d=F.getInnerMostAxes(d.length,o),u.push(c)),F.assertAxesAreInnerMostDims("prod",d,o);let h;if(n.shouldExecuteOnCPU([c])){let m=n.texData.get(c.dataId).values,{outVals:f,outShape:A,outDtype:g}=PB(c.shape,c.dtype,m,d);h=n.makeTensorInfo(A,g,f)}else{let[m,f]=F.computeOutAndReduceShapes(c.shape,d),A=k.sizeFromShape(f),g=ye({inputs:{x:c},backend:n,attrs:{shape:[-1,A]}}),y=zc(r.dtype),x=Wi(g,y,"prod",n);h=ye({inputs:{x},backend:n,attrs:{shape:m}}),u.push(g),u.push(x)}if(i){u.push(h);let m=F.expandShapeToKeepDim(h.shape,l);h=ye({inputs:{x:h},backend:n,attrs:{shape:m}})}return u.forEach(m=>n.disposeIntermediateTensorInfo(m)),h}var CX={kernelName:Jo,backendName:"webgl",kernelFunc:TX},i6=e=>{let{backend:t,attrs:n}=e,{start:a,stop:r,step:s,dtype:i}=n,o=LB(a,r,s,i);return t.makeTensorInfo([o.length],i,o)},EX={kernelName:ju,backendName:"webgl",kernelFunc:i6},RX="return 1.0 / x;",MX=Ke({opSnippet:RX}),FX={kernelName:Qo,backendName:"webgl",kernelFunc:MX},$X=Ca+`
  return (x < 0.0) ? 0.0 : x;
`,DX=`
  vec4 result = x * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,OX=Ke({opSnippet:$X,packedOpSnippet:DX}),zX={kernelName:Ys,backendName:"webgl",kernelFunc:OX},_X=Ca+`
  return (x < 0.0) ? 0.0 : min(6.0, x);
`,PX=`
  vec4 result = min(x, vec4(6.)) * vec4(greaterThanEqual(x, vec4(0.0)));
  bvec4 isNaN = isnan(x);

  result.r = isNaN.r ? x.r : result.r;
  result.g = isNaN.g ? x.g : result.g;
  result.b = isNaN.b ? x.b : result.b;
  result.a = isNaN.a ? x.a : result.a;

  return result;
`,LX=Ke({opSnippet:_X,packedOpSnippet:PX}),WX={kernelName:Qs,backendName:"webgl",kernelFunc:LX},BX=class{constructor(e,t,n,a,r){this.variableNames=["A"],this.outputShape=[];let[s,i,o,u]=e;this.outputShape=[s,t,n,u];let l=[a&&t>1?i-1:i,a&&n>1?o-1:o],d=[a&&t>1?t-1:t,a&&n>1?n-1:n],p;r?p="(vec2(yRC) + vec2(0.5)) * effectiveInputOverOutputRatioRC - vec2(0.5)":p="vec2(yRC) * effectiveInputOverOutputRatioRC",this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          ${l[0]/d[0]},
          ${l[1]/d[1]});
      const vec2 inputShapeRC = vec2(${i}.0, ${o}.0);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        ivec2 yRC = coords.yz;

        // Fractional source index.
        vec2 sourceFracIndexRC = ${p};

        // Compute the four integer indices.
        ivec2 sourceFloorRC = ivec2(max(sourceFracIndexRC, vec2(0.0)));
        ivec2 sourceCeilRC = ivec2(
          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));

        float topLeft = getA(b, sourceFloorRC.x, sourceFloorRC.y, d);
        float bottomLeft = getA(b, sourceCeilRC.x, sourceFloorRC.y, d);
        float topRight = getA(b, sourceFloorRC.x, sourceCeilRC.y, d);
        float bottomRight = getA(b, sourceCeilRC.x, sourceCeilRC.y, d);

        vec2 fracRC = sourceFracIndexRC - vec2(sourceFloorRC);

        float top = topLeft + (topRight - topLeft) * fracRC.y;
        float bottom = bottomLeft + (bottomRight - bottomLeft) * fracRC.y;
        float newValue = top + (bottom - top) * fracRC.x;

        setOutput(newValue);
      }
    `}},VX=class{constructor(e,t,n,a,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];let[s,i,o,u]=e;this.outputShape=[s,t,n,u];let l=[a&&t>1?i-1:i,a&&n>1?o-1:o],d=[a&&t>1?t-1:t,a&&n>1?n-1:n],p;r?p="(vec3(yRC) + vec3(0.5)) * effectiveInputOverOutputRatioRC - vec3(0.5)":p="vec3(yRC) * effectiveInputOverOutputRatioRC",this.userCode=`
      const vec3 effectiveInputOverOutputRatioRC = vec3(
          ${l[0]/d[0]},
          ${l[1]/d[1]},
          ${l[1]/d[1]});
      const vec3 inputShapeRC = vec3(${i}.0, ${o}.0,
                                     ${o}.0);

      float getAValue(int b, int r, int c, int d) {
        return getChannel(getA(b, r, c, d), vec2(c, d));
      }

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        // Calculate values for next column in yRC.z.
        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);

        // Fractional source index.
        vec3 sourceFracIndexRC = ${p};

        // Compute the four integer indices.
        ivec3 sourceFloorRC = ivec3(max(sourceFracIndexRC, vec3(0.0)));
        ivec3 sourceCeilRC = ivec3(
          min(inputShapeRC - 1.0, ceil(sourceFracIndexRC)));

        // Should we calculate next column and row elements in 2x2 packed cell.
        bool hasNextCol = d < ${u-1};
        bool hasNextRow = coords.z < ${n-1};

        // In parallel, construct four corners for all four components in
        // packed 2x2 cell.
        vec4 topLeft = vec4(
          getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d),
          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceFloorRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceFloorRC.x, sourceFloorRC.z, d + 1) : 0.0);

        vec4 bottomLeft = vec4(
          getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d),
          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceFloorRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceCeilRC.x, sourceFloorRC.z, d + 1) : 0.0);

        vec4 topRight = vec4(
          getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d),
          hasNextCol ? getAValue(b, sourceFloorRC.x, sourceCeilRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceFloorRC.x, sourceCeilRC.z, d + 1) : 0.0);

        vec4 bottomRight = vec4(
          getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d),
          hasNextCol ? getAValue(b, sourceCeilRC.x, sourceCeilRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceCeilRC.x, sourceCeilRC.z, d + 1) : 0.0);

        vec3 fracRC = sourceFracIndexRC - vec3(sourceFloorRC);

        vec4 top = mix(topLeft, topRight, fracRC.yyzz);
        vec4 bottom = mix(bottomLeft, bottomRight, fracRC.yyzz);
        vec4 newValue = mix(top, bottom, fracRC.x);

        setOutput(newValue);
      }
    `}};function jX(e){let{inputs:t,backend:n,attrs:a}=e,{images:r}=t,{alignCorners:s,halfPixelCenters:i,size:o}=a,[u,l]=o,d=te().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new VX(r.shape,u,l,s,i):new BX(r.shape,u,l,s,i);return n.runWebGLProgram(d,[r],"float32")}var UX={kernelName:Js,backendName:"webgl",kernelFunc:jX},HX=class{constructor(e,t,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=t;let[,a,r]=t,[,s,i]=e,o=[n&&s>1?a-1:a,n&&i>1?r-1:r],u=[n&&s>1?s-1:s,n&&i>1?i-1:i],l=o[0]/u[0],d=o[1]/u[1],p=1/l,c=1/d,h=Math.ceil(p)*2+2,m=Math.ceil(c)*2+2;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        int r = coords[1];
        int c = coords[2];

        float accumulator = 0.0;

        const float heightScale = float(${l});
        const float widthScale = float(${d});

        const float invHeightScale = float(${p});
        const float invWidthScale = float(${c});

        const int winHeight = int(${h});
        const int winWidth = int(${m});

        // Compute bounds for where in dy we will look
        float startRLerp = floor(float(r) * invHeightScale);
        int startDyR = int(startRLerp - float(winHeight / 2));

        float startCLerp = floor(float(c) * invWidthScale);
        int startDyC = int(startCLerp - float(winWidth / 2));

        // Loop over dy
        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {
          int dyR = dyROffset + startDyR;

          // Guard against the window exceeding the bounds of dy
          if (dyR < 0 || dyR >= ${s}) {
            continue;
          }

          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {
            int dyC = dyCOffset + startDyC;

            // Guard against the window exceeding the bounds of dy
            if (dyC < 0 || dyC >= ${i}) {
              continue;
            }

            float dxR = float(dyR) * heightScale;
            int topDxRIndex = int(floor(dxR));
            int bottomDxRIndex = int(min(ceil(dxR), ${a-1}.0));
            float dxRLerp = dxR - float(topDxRIndex);
            float inverseDxRLerp = 1.0 - dxRLerp;

            float dxC = float(dyC) * widthScale;
            int leftDxCIndex = int(floor(dxC));
            int rightDxCIndex = int(min(ceil(dxC), ${r-1}.0));
            float dxCLerp = dxC - float(leftDxCIndex);
            float inverseDxCLerp = 1.0 - dxCLerp;

            if (r == topDxRIndex && c == leftDxCIndex) {
              // topLeft
              accumulator +=
                getDy(b, dyR, dyC, d) * inverseDxRLerp * inverseDxCLerp;
            }

            if (r == topDxRIndex && c == rightDxCIndex) {
              // topRight
              accumulator += getDy(b, dyR, dyC, d) * inverseDxRLerp * dxCLerp;
            }

            if (r == bottomDxRIndex && c == leftDxCIndex) {
              // bottomLeft
              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * inverseDxCLerp;
            }

            if (r == bottomDxRIndex && c == rightDxCIndex) {
              // bottomRight
              accumulator += getDy(b, dyR, dyC, d) * dxRLerp * dxCLerp;
            }
          }
        }
        // End loop over dy

        setOutput(accumulator);
      }
    `}};function GX(e){let{inputs:t,backend:n,attrs:a}=e,{images:r,dy:s}=t,{alignCorners:i}=a,o=new HX(s.shape,r.shape,i);return n.runWebGLProgram(o,[s],s.dtype)}var qX={kernelName:bc,backendName:"webgl",kernelFunc:GX},XX=class{constructor(e,t,n,a,r){this.variableNames=["A"],this.outputShape=[];let[s,i,o,u]=e;this.outputShape=[s,t,n,u];let l=[a&&t>1?i-1:i,a&&n>1?o-1:o],d=[a&&t>1?t-1:t,a&&n>1?n-1:n],p=a?"0.5":"0.0",c;r?c="max((vec2(yRC) + vec2(0.5)) * effectiveInputOverOutputRatioRC, vec2(0.0))":c="vec2(yRC) * effectiveInputOverOutputRatioRC",this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          ${l[0]/d[0]},
          ${l[1]/d[1]});
      const vec2 inputShapeRC = vec2(${i}.0, ${o}.0);

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        ivec2 yRC = coords.yz;

        // Fractional source index.
        vec2 sourceFracIndexRC = ${c};

        // Compute the coordinators of nearest neighbor point.
        ivec2 sourceNearestRC = ivec2(
          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + ${p})));
        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);

        setOutput(newValue);
      }
    `}},KX=class{constructor(e,t,n,a,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];let[s,i,o,u]=e;this.outputShape=[s,t,n,u];let l=[a&&t>1?i-1:i,a&&n>1?o-1:o],d=[a&&t>1?t-1:t,a&&n>1?n-1:n],p=a?"0.5":"0.0",c;r?c="max((vec3(yRC) + vec3(0.5)) * effectiveInputOverOutputRatioRC, vec3(0.0))":c="vec3(yRC) * effectiveInputOverOutputRatioRC",this.userCode=`
      const vec3 effectiveInputOverOutputRatioRC = vec3(
          ${l[0]/d[0]},
          ${l[1]/d[1]},
          ${l[1]/d[1]});
      const vec3 inputShapeRC = vec3(${i}.0, ${o}.0,
                                     ${o}.0);

      float getAValue(int b, int r, int c, int d) {
        return getChannel(getA(b, r, c, d), vec2(c, d));
      }

      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        // Calculate values for next column in yRC.z.
        ivec3 yRC = coords.yzz + ivec3(0, 0, 1);

        // Fractional source index.
        vec3 sourceFracIndexRC = ${c};

        // Compute the coordinators of nearest neighbor point.
        ivec3 sourceNearestRC = ivec3(
          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + ${p})));

        // Should we calculate next column and row elements in 2x2 packed cell.
        bool hasNextCol = d < ${u-1};
        bool hasNextRow = coords.z < ${n-1};

        vec4 newValue = vec4(
          getAValue(b, sourceNearestRC.x, sourceNearestRC.y, d),
          hasNextCol ? getAValue(b, sourceNearestRC.x, sourceNearestRC.y, d + 1)
                     : 0.0,
          hasNextRow ? getAValue(b, sourceNearestRC.x, sourceNearestRC.z, d)
                     : 0.0,
          (hasNextRow && hasNextCol) ?
            getAValue(b, sourceNearestRC.x, sourceNearestRC.z, d + 1) : 0.0);

        setOutput(newValue);
      }
    `}};function ZX(e){let{inputs:t,backend:n,attrs:a}=e,{images:r}=t,{alignCorners:s,halfPixelCenters:i,size:o}=a,[u,l]=o,d=te().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new KX(r.shape,u,l,s,i):new XX(r.shape,u,l,s,i);return n.runWebGLProgram(d,[r],r.dtype)}var YX={kernelName:Uu,backendName:"webgl",kernelFunc:ZX},JX=class{constructor(e,t,n){this.variableNames=["dy"],this.outputShape=[],this.outputShape=t;let[,a,r]=t,[,s,i]=e,o=[n&&s>1?a-1:a,n&&i>1?r-1:r],u=[n&&s>1?s-1:s,n&&i>1?i-1:i],l=o[0]/u[0],d=o[1]/u[1],p=1/l,c=1/d,h=Math.ceil(p)*2+2,m=Math.ceil(c)*2+2;this.userCode=`
      void main() {
        ivec4 coords = getOutputCoords();
        int b = coords[0];
        int d = coords[3];
        int r = coords[1];
        int c = coords[2];

        float accumulator = 0.0;

        const float heightScale = float(${l});
        const float widthScale = float(${d});

        const float invHeightScale = float(${p});
        const float invWidthScale = float(${c});

        const int winHeight = int(${h});
        const int winWidth = int(${m});

        // Compute bounds for where in dy we will look
        float startRLerp = floor(float(r) * invHeightScale);
        int startDyR = int(floor(startRLerp - float(winHeight / 2)));

        float startCLerp = floor(float(c) * invWidthScale);
        int startDyC = int(floor(startCLerp - float(winWidth / 2)));

        // Loop over dy
        for (int dyROffset = 0; dyROffset < winHeight; dyROffset++) {
          int dyR = dyROffset + startDyR;

          // Guard against the window exceeding the bounds of dy
          if (dyR < 0 || dyR >= ${s}) {
            continue;
          }

          for (int dyCOffset = 0; dyCOffset < winWidth; dyCOffset++) {
            int dyC = dyCOffset + startDyC;

            // Guard against the window exceeding the bounds of dy
            if (dyC < 0 || dyC >= ${i}) {
              continue;
            }

            float sourceFracRow =
              float(${o[0]}) *
                (float(dyR) / float(${u[0]}));

            float sourceFracCol =
                float(${o[1]}) *
                  (float(dyC) / float(${u[1]}));

            int sourceNearestRow = int(min(
                float(int(${a}) - 1),
                ${n} ? float(round(sourceFracRow)) :
                                  float(floor(sourceFracRow))));

            int sourceNearestCol = int(min(
                float(int(${r}) - 1),
                ${n} ? float(round(sourceFracCol)) :
                                  float(floor(sourceFracCol))));

            if (r == sourceNearestRow && c == sourceNearestCol) {
              accumulator += getDy(b, dyR, dyC, d);
            }
          }
        }
        // End loop over dy

        setOutput(accumulator);
      }
    `}};function QX(e){let{inputs:t,backend:n,attrs:a}=e,{images:r,dy:s}=t,{alignCorners:i}=a,o=new JX(s.shape,r.shape,i);return n.runWebGLProgram(o,[s],s.dtype)}var eK={kernelName:xc,backendName:"webgl",kernelFunc:QX},tK=class{constructor(e,t){this.variableNames=["x"];let n=e.length;if(n>4)throw new Error(`WebGL backend: Reverse of rank-${n} tensor is not yet supported`);if(this.outputShape=e,n===1){this.userCode=`
        void main() {
          int coord = getOutputCoords();
          setOutput(getX(${e[0]} - coord - 1));
        }
      `;return}let a=i=>t.indexOf(i)!==-1&&e[i]!==1?`${e[i]} - coords[${i}] - 1`:`coords[${i}]`,r=e.map((i,o)=>a(o)).join(","),s=ut(n);this.userCode=`
      void main() {
        ${s} coords = getOutputCoords();
        setOutput(getX(${r}));
      }
    `}},nK=class{constructor(e,t){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;let n=e.length;if(n>4)throw new Error(`WebGL backend: Reverse of rank-${n} tensor is not yet supported`);this.outputShape=e;let a=yn("rc",n),r=`${a[n-1]} + 1 < ${this.outputShape[n-1]}`,s=`${a[n-2]} + 1 < ${this.outputShape[n-2]}`,i=ut(n);n===1?this.userCode=`
        void main(){
          int rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = getChannel(getX(${e[0]} - rc - 1),
            ${e[0]} - rc - 1);
          if(${r}){
              result.g = getChannel(getX(${e[0]} - (rc  + 1) - 1),
                ${e[0]} - (rc  + 1) - 1);
          }
          setOutput(result);
        }
      `:this.userCode=`
        void main() {
          ${i} rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = ${o(a.slice())};
          if(${r}){
            result.g = ${u(a.slice())};
          }
          if(${s}) {
            result.b = ${l(a.slice())};
            if(${r}) {
              result.a = ${d(a.slice())};
            }
          }
          setOutput(result);
        }
    `;function o(h){return p(h)}function u(h){return h[n-1]="("+h[n-1]+" + 1)",p(h)}function l(h){return h[n-2]="("+h[n-2]+" + 1)",p(h)}function d(h){return h[n-1]="("+h[n-1]+" + 1)",h[n-2]="("+h[n-2]+" + 1)",p(h)}function p(h){let m=e.map((g,y)=>c(y,h)),f=m.join(","),A=m.slice(-2).join(",");return`getChannel(getX(${f}), vec2(${A}))`}function c(h,m){return t.indexOf(h)!==-1&&e[h]!==1?`${e[h]} - ${m[h]} - 1`:`${m[h]}`}}};function aK(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{dims:s}=a,i=r.shape.length,o=k.parseAxisParam(s,r.shape);if(i===0)return Xn({inputs:{x:r},backend:n});let u=te().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new nK(r.shape,o):new tK(r.shape,o);return n.runWebGLProgram(u,[r],r.dtype)}var rK={kernelName:ei,backendName:"webgl",kernelFunc:aK},sK=class{constructor(e,t){this.variableNames=["Image"],this.outputShape=[];let n=e[1],a=e[2];this.outputShape=e;let r="";typeof t=="number"?r=`float outputValue = ${t.toFixed(2)};`:r=`
        vec3 fill = vec3(${t.join(",")});
        float outputValue = fill[coords[3]];`,this.userCode=`
        uniform vec4 params;
        void main() {
          ivec4 coords = getOutputCoords();
          int x = coords[2];
          int y = coords[1];
          float coordXFloat = (float(x) - params[0]) * params[3] -
            (float(y) - params[1]) * params[2];
          float coordYFloat = (float(x) - params[0]) * params[2] +
            (float(y) - params[1]) * params[3];
          int coordX = int(round(coordXFloat + params[0]));
          int coordY = int(round(coordYFloat + params[1]));
          ${r}
          if(coordX >= 0 && coordX < ${a} && coordY >= 0 && coordY < ${n}) {
            outputValue = getImage(coords[0], coordY, coordX, coords[3]);
          }
          setOutput(outputValue);
        }
    `}getCustomSetupFunc(e,t,n,a){return(r,s)=>{this.paramsLoc==null&&(this.paramsLoc=r.getUniformLocationNoThrow(s,"params")),r.gl.uniform4f(this.paramsLoc,e,t,n,a)}}},iK={kernelName:fl,backendName:"webgl",kernelFunc:({inputs:e,attrs:t,backend:n})=>{let{image:a}=e,{radians:r,fillValue:s,center:i}=t,o=n,u=new sK(a.shape,s),[l,d]=F.getImageCenter(i,a.shape[1],a.shape[2]),p=u.getCustomSetupFunc(l,d,Math.sin(r),Math.cos(r));return o.runWebGLProgram(u,[a],a.dtype,p)}},oK=`
  // OpenGL ES does not support round function.
  // The algorithm is based on banker's rounding.
  float base = floor(x);
  if ((x - base) < 0.5) {
    return floor(x);
  } else if ((x - base) > 0.5) {
    return ceil(x);
  } else {
    if (mod(base, 2.0) == 0.0) {
      return base;
    } else {
      return base + 1.0;
    }
  }
`,lK=Ke({opSnippet:oK}),uK={kernelName:ti,backendName:"webgl",kernelFunc:lK},dK="return inversesqrt(x);",pK=Ke({opSnippet:dK,cpuKernelImpl:WB}),cK={kernelName:ni,backendName:"webgl",kernelFunc:pK},o6=class{constructor(e,t,n,a,r,s,i=!0){this.variableNames=["updates","indices","defaultValue"],this.outputShape=s;let o=ut(r.length),u=ut(s.length),l="";n===1?l="i":n===2&&(l="i, j");let d=`getIndices(${l})`,p="";a===1?p="i":a===2&&(p="i, coords[1]");let c=`getUpdates(${p})`,h=t>1?"strides[j]":"strides";this.userCode=`
        ${o} strides = ${o}(${r});

        void main() {
          ${u} coords = getOutputCoords();
          float sum = 0.0;
          bool found = false;
          for (int i = 0; i < ${e}; i++) {
            int flattenedIndex = 0;
            for (int j = 0; j < ${t}; j++) {
              int index = round(${d});
              flattenedIndex += index * ${h};
            }
            if (flattenedIndex == coords[0]) {
              sum += ${c};
              found = true;
            }
          }
          setOutput(mix(getDefaultValue(), sum, float(found)));
        }
      `}};function hK(e){let{inputs:t,backend:n,attrs:a}=e,{indices:r,updates:s}=t,{shape:i}=a,{sliceRank:o,numUpdates:u,sliceSize:l,strides:d,outputSize:p}=F.calculateShapes(s,r,i),c=[p/l,l];if(p===0)return n.makeTensorInfo(i,r.dtype);let h=ye({inputs:{x:r},backend:n,attrs:{shape:[u,o]}}),m=ye({inputs:{x:s},backend:n,attrs:{shape:[u,l]}}),f=n.makeTensorInfo([],"float32",new Float32Array([0])),A=new o6(u,o,h.shape.length,m.shape.length,d,c),g=n.runWebGLProgram(A,[m,h,f],m.dtype),y=ye({inputs:{x:g},backend:n,attrs:{shape:i}});return n.disposeIntermediateTensorInfo(h),n.disposeIntermediateTensorInfo(m),n.disposeIntermediateTensorInfo(g),n.disposeIntermediateTensorInfo(f),y}var fK={kernelName:tl,backendName:"webgl",kernelFunc:hK},mK=class{constructor(e,t,n){this.variableNames=["c","a","b"],this.outputShape=t;let a,r;if(n>4)throw Error(`Where for rank ${n} is not yet supported`);if(n===1)r="resRC",a="resRC";else{let i=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],u=[];for(let l=0;l<t.length;l++)u.push(`${i[l]}`),l<e&&o.push(`${i[l]}`);a=o.join(),r=u.join()}let s=ut(n);this.userCode=`
      void main() {
        ${s} resRC = getOutputCoords();
        float cVal = getC(${a});
        if (cVal >= 1.0) {
          setOutput(getA(${r}));
        } else {
          setOutput(getB(${r}));
        }
      }
    `}};function AK(e){let{inputs:t,backend:n}=e,{condition:a,t:r,e:s}=t,i=new mK(a.shape.length,r.shape,r.shape.length);return n.runWebGLProgram(i,[a,r,s],ya(r.dtype,s.dtype))}var gK={kernelName:nl,backendName:"webgl",kernelFunc:AK},yK=`
  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.
  // see: https://arxiv.org/abs/1706.02515
  float scaleAlpha = ${F.SELU_SCALEALPHA};
  float scale = ${F.SELU_SCALE};
  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);
`,xK=Ke({opSnippet:yK}),bK={kernelName:al,backendName:"webgl",kernelFunc:xK},vK="return 1.0 / (1.0 + exp(-1.0 * x));",wK=Ke({opSnippet:vK}),kK={kernelName:ri,backendName:"webgl",kernelFunc:wK},IK=`
  if (isnan(x)) { return 0.0; }
  return sign(x);
`,SK=Ke({opSnippet:IK}),NK={kernelName:il,backendName:"webgl",kernelFunc:SK},TK=ww+`
  return sin(x);
`,CK=Ke({opSnippet:TK}),EK={kernelName:ai,backendName:"webgl",kernelFunc:CK},RK=`
  float e2x = exp(x);
  return (e2x - 1.0 / e2x) / 2.0;
`,MK=Ke({opSnippet:RK}),FK={kernelName:sl,backendName:"webgl",kernelFunc:MK},$K=`
  float epsilon = 1.1920928955078125e-7;
  float threshold = log(epsilon) + 2.0;

  bool too_large = x > -threshold;
  bool too_small = x < threshold;

  float result;
  float exp_x = exp(x);

  if (too_large){
    result = x;
  }
  else if (too_small){
    result = exp_x;
  }
  else{
    result = log(exp_x + 1.0);
  }
  return result;
`,DK=Ke({opSnippet:$K}),OK={kernelName:ol,backendName:"webgl",kernelFunc:DK},zK=e=>{let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{blockShape:s,paddings:i}=a;k.assert(r.shape.length<=4,()=>"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet");let o=s.reduce((g,y)=>g*y),u=[[0,0]];u.push(...i);for(let g=1+s.length;g<r.shape.length;++g)u.push([0,0]);let l=[],d=s6({inputs:{x:r},backend:n,attrs:{paddings:u,constantValue:0}}),p=F.getReshaped(d.shape,s,o,!1),c=F.getPermuted(p.length,s.length,!1),h=F.getReshapedPermuted(d.shape,s,o,!1),m=ye({inputs:{x:d},backend:n,attrs:{shape:p}}),f=xn({inputs:{x:m},backend:n,attrs:{perm:c}}),A=ye({inputs:{x:f},backend:n,attrs:{shape:h}});return l.push(d),l.push(m),l.push(f),l.forEach(g=>n.disposeIntermediateTensorInfo(g)),A},_K={kernelName:Hu,backendName:"webgl",kernelFunc:zK};function PK(e){let{inputs:t,backend:n}=e,{indices:a,values:r,denseShape:s,defaultValue:i}=t;if(s.shape.length!==1)throw new Error(`Dense shape must be a vector, saw:
         ${s.shape}`);if(a.shape.length!==2)throw new Error(`Indices must be a matrix, saw:
         ${a.shape}`);if(r.shape.length!==1)throw new Error(`Values must be a vector, saw:
         ${r.shape}`);if(i.shape.length!==0)throw new Error(`Default value must be a scalar, saw:
        ${i.shape}`);let o=n.readSync(a.dataId),u=n.readSync(r.dataId),l=n.readSync(s.dataId),d=n.readSync(i.dataId)[0],[p,c,h,m,f]=VB(o,a.shape,a.dtype,u,r.dtype,l,d);return[n.makeTensorInfo(c,a.dtype,p),n.makeTensorInfo([c[0]],r.dtype,h),n.makeTensorInfo([m.length],"bool",new Uint8Array(m.map(A=>Number(A)))),n.makeTensorInfo([f.length],a.dtype,new Int32Array(f))]}var LK={kernelName:vc,backendName:"webgl",kernelFunc:PK};function WK(e){let{inputs:t,backend:n}=e,{inputIndices:a,inputShape:r,newShape:s}=t;if(a.shape.length!==2)throw new Error(`Input indices should be a matrix but received shape ${a.shape}`);if(r.shape.length!==1)throw new Error(`Input shape should be a vector but received shape ${r.shape}`);if(s.shape.length!==1)throw new Error(`Target shape should be a vector but received shape ${s.shape}`);let i=Array.from(n.readSync(r.dataId)),o=n.readSync(a.dataId),u=Array.from(n.readSync(s.dataId)),[l,d,p]=jB(o,a.shape,a.dtype,i,u);return[n.makeTensorInfo(d,a.dtype,l),n.makeTensorInfo([p.length],s.dtype,new Int32Array(p))]}var BK={kernelName:wc,backendName:"webgl",kernelFunc:WK};function VK(e){let{inputs:t,backend:n}=e,{data:a,indices:r,segmentIds:s}=t;if(a.shape.length<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(r.shape.length!==1)throw new Error(`Indices should be a vector but received shape
              ${r.shape}`);if(s.shape.length!==1)throw new Error(`Segment ids should be a vector but received shape
              ${s.shape}`);let i=n.readSync(a.dataId),o=n.readSync(r.dataId),u=n.readSync(s.dataId),[l,d]=lw(i,a.shape,a.dtype,o,u,!0);return n.makeTensorInfo(d,a.dtype,l)}var jK={kernelName:kc,backendName:"webgl",kernelFunc:VK};function UK(e){let{inputs:t,backend:n}=e,{data:a,indices:r,segmentIds:s}=t;if(a.shape.length<1)throw new Error("Data should be at least 1 dimensional but received scalar");if(r.shape.length!==1)throw new Error(`Indices should be a vector but received shape
             ${r.shape}`);if(s.shape.length!==1)throw new Error(`Segment ids should be a vector but received shape
             ${s.shape}`);let i=n.readSync(a.dataId),o=n.readSync(r.dataId),u=n.readSync(s.dataId),[l,d]=lw(i,a.shape,a.dtype,o,u);return n.makeTensorInfo(d,a.dtype,l)}var HK={kernelName:Ic,backendName:"webgl",kernelFunc:UK};function GK(e){let{inputs:t,backend:n,attrs:a}=e,{sparseIndices:r,sparseValues:s,defaultValue:i}=t,{outputShape:o}=a,{sliceRank:u,numUpdates:l,strides:d,outputSize:p}=F.calculateShapes(s,r,o),c=!1,h=new o6(l,u,r.shape.length,s.shape.length,d,[p,1],c),m=n.runWebGLProgram(h,[s,r,i],s.dtype),f=ye({inputs:{x:m},backend:n,attrs:{shape:o}});return n.disposeIntermediateTensorInfo(m),f}var qK={kernelName:Sc,backendName:"webgl",kernelFunc:GK};function XK(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{numOrSizeSplits:s,axis:i}=a,o=k.parseAxisParam(i,r.shape)[0],u=F.prepareSplitSize(r,s,o),l=r.shape.length,d=new Array(l).fill(0),p=r.shape.slice();return u.map(c=>{let h=[...p];h[o]=c;let m=zd({inputs:{x:r},backend:n,attrs:{begin:d,size:h}});return d[o]+=c,m})}var KK={kernelName:ll,backendName:"webgl",kernelFunc:XK},ZK="return sqrt(x);",YK=Ke({opSnippet:ZK}),JK={kernelName:si,backendName:"webgl",kernelFunc:YK},QK="return x * x;",eZ=Ke({opSnippet:QK}),tZ={kernelName:Gu,backendName:"webgl",kernelFunc:eZ},l6="return (a - b) * (a - b);",nZ=rn({opSnippet:l6,packedOpSnippet:l6}),aZ={kernelName:li,backendName:"webgl",kernelFunc:nZ};function rZ({inputs:e,attrs:t,backend:n}){let{x:a}=e,r=Ca+`
    return x > 0.0 ? 1.0 : float(${t.alpha});
  `,s=new Yr(a.shape,r);return n.runWebGLProgram(s,[a],a.dtype)}var sZ={kernelName:Pr,backendName:"webgl",kernelFunc:rZ},iZ=class{constructor(e,t,n){this.variableNames=["x"],this.outputShape=n;let a=n.length,r=ut(n.length),s=ut(n.length),i="";if(a===1)i="coords * strides + begin";else{let o=0;i=n.map((u,l)=>(o++,n.length===1?`coords * strides[${l}] + begin[${l}]`:`coords[${o-1}] * strides[${l}] + begin[${l}]`)).join(",")}this.userCode=`
      ${r} begin = ${r}(${e});
      ${r} strides = ${r}(${t});

      void main() {
        ${s} coords = getOutputCoords();
        setOutput(getX(${i}));
      }
    `}};function oZ(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{begin:s,end:i,strides:o,beginMask:u,endMask:l,ellipsisMask:d,newAxisMask:p,shrinkAxisMask:c}=a,{nonStrided:h,$begin:m,$strides:f,size:A,newShape:g,outShape:y}=hn.sliceInfo(r.shape,s,i,o,u,l,d,p,c),x=ye({inputs:{x:r},backend:n,attrs:{shape:g}}),v;if(h){let w=zd({inputs:{x},backend:n,attrs:{begin:m,size:A}});v=ye({inputs:{x:w},backend:n,attrs:{shape:y}}),n.disposeIntermediateTensorInfo(w)}else if(y.some(w=>w===0))v=n.makeTensorInfo(y,r.dtype,[]);else if(n.shouldExecuteOnCPU([x])){let w=n.texData.get(x.dataId).values,N=Ve(x.shape,x.dtype,w),C=UB(y,N,f,m);v=n.makeTensorInfo(y,x.dtype,C.values)}else{let w=new iZ(m,f,y);v=n.runWebGLProgram(w,[x],x.dtype)}let b=ye({inputs:{x:v},backend:n,attrs:{shape:y}});return n.disposeIntermediateTensorInfo(x),n.disposeIntermediateTensorInfo(v),b}var lZ={kernelName:ul,backendName:"webgl",kernelFunc:oZ};function uZ(e){let{inputs:t,backend:n,attrs:a}=e,{separator:r,nGramWidths:s,leftPad:i,rightPad:o,padWidth:u,preserveShortSequences:l}=a,{data:d,dataSplits:p}=t,c=n.readSync(d.dataId),h=n.readSync(p.dataId),[m,f]=HB(c,h,r,s,i,o,u,l);return[n.makeTensorInfo([m.length],"string",m),n.makeTensorInfo(p.shape,"int32",f)]}var dZ={kernelName:Nc,backendName:"webgl",kernelFunc:uZ};function pZ(e){let{inputs:t,backend:n,attrs:a}=e,{skipEmpty:r}=a,{input:s,delimiter:i}=t;if(s.dtype!=="string")throw new Error("Input must be of datatype string");if(s.shape.length!==1)throw new Error(`Input must be a vector, got shape: ${s.shape}`);if(i.shape.length!==0)throw new Error(`Delimiter must be a scalar, got shape: ${i.shape}`);let o=n.readSync(s.dataId),u=n.readSync(i.dataId)[0],[l,d,p]=GB(o,u,r),c=d.length;return[n.makeTensorInfo([c,2],"int32",l),n.makeTensorInfo([c],"string",d),n.makeTensorInfo([2],"int32",new Int32Array(p))]}var cZ={kernelName:Tc,backendName:"webgl",kernelFunc:pZ};function hZ(e){let{inputs:t,backend:n,attrs:a}=e,{numBuckets:r}=a,{input:s}=t;if(s.dtype!=="string")throw new Error("Input must be of datatype string");if(r<=0)throw new Error("Number of buckets must be at least 1");let i=n.readSync(s.dataId),o=qB(i,r);return n.makeTensorInfo(s.shape,"int32",o)}var fZ={kernelName:Cc,backendName:"webgl",kernelFunc:hZ},mZ="return tan(x);",AZ=Ke({opSnippet:mZ}),gZ={kernelName:di,backendName:"webgl",kernelFunc:AZ},yZ=`
  float e2x = exp(-2.0 * abs(x));
  return sign(x) * (1.0 - e2x) / (1.0 + e2x);
`,xZ=Ke({opSnippet:yZ}),bZ={kernelName:pi,backendName:"webgl",kernelFunc:xZ},vZ=class{constructor(e,t){this.variableNames=["A"];let n=new Array(e.length);for(let s=0;s<n.length;s++)n[s]=e[s]*t[s];this.outputShape=n,this.rank=n.length;let a=ut(this.rank),r=wZ(e);this.userCode=`
      void main() {
        ${a} resRC = getOutputCoords();
        setOutput(getA(${r}));
      }
    `}};function wZ(e){let t=e.length;if(t>5)throw Error(`Tile for rank ${t} is not yet supported`);if(t===1)return`imod(resRC, ${e[0]})`;let n=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],a=[];for(let r=0;r<e.length;r++)a.push(`imod(${n[r]}, ${e[r]})`);return a.join()}function u6(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{reps:s}=a;if(r.dtype==="string"||r.shape.length>5){let o=n.readSync(r.dataId),u=r.dtype==="string"?o.map(p=>k.decodeString(p)):o,l=Ve(r.shape,r.dtype,u),d=KB(l,s);return n.makeTensorInfo(d.shape,d.dtype,d.values)}let i=new vZ(r.shape,s);return n.runWebGLProgram(i,[r],r.dtype)}var kZ={kernelName:_r,backendName:"webgl",kernelFunc:u6};function IZ(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{k:s,sorted:i}=a,o=n.readSync(r.dataId),[u,l]=ZB(o,r.shape,r.dtype,s,i);return[n.makeTensorInfo(u.shape,u.dtype,u.values),n.makeTensorInfo(l.shape,l.dtype,l.values)]}var SZ={kernelName:dl,backendName:"webgl",kernelFunc:IZ},NZ=class{constructor(e,t,n,a,r,s){this.variableNames=["Image","Transforms"],this.outputShape=s;let i=n==="nearest"?1:2,o;switch(a){case"constant":o=1;break;case"reflect":o=2;break;case"wrap":o=3;break;case"nearest":o=4;break;default:o=1;break}this.userCode=`
            float mapCoord(float outCoord, float len) {
              float inCoord = outCoord;
              if(${o} == 2) {
                if (inCoord < 0.0) {
                  if (len <= 1.0) {
                    inCoord = 0.0;
                  } else {
                    float sz2 = 2.0 * len;
                    if (inCoord < sz2) {
                      inCoord = sz2 * float(int(float(-inCoord / sz2))) +
                      inCoord;
                    }
                    inCoord = inCoord < -len ? inCoord + sz2 : -inCoord - 1.0;
                  }
                } else if (inCoord > len - 1.0) {
                  if (len <= 1.0) {
                    inCoord = 0.0;
                  } else {
                    float sz2 = 2.0 * len;
                    inCoord -= sz2 * float(int(float(inCoord / sz2)));
                    if (inCoord >= len) {
                      inCoord = sz2 - inCoord - 1.0;
                    }
                  }
                }
                return clamp(inCoord, 0.0, len - 1.0);
              } else if (${o} == 3) {
                if (inCoord < 0.0) {
                  if (len <= 1.0) {
                    inCoord = 0.0;
                  } else {
                    float sz = len - 1.0;
                    inCoord += len * (float(int(float(-inCoord / sz))) + 1.0);
                  }
                } else if (inCoord > len - 1.0) {
                  if (len <= 1.0) {
                    inCoord = 0.0;
                  } else {
                    float sz = len - 1.0;
                    inCoord -= len * float(int(float(inCoord / sz)));
                  }
                }
                return clamp(inCoord, 0.0, len - 1.0);
              } else if (${o} == 4) {
                return clamp(outCoord, 0.0, len - 1.0);
              } else {
                return outCoord;
              }
            }

            float readWithFillValue(int batch, int coordY, int coordX,
              int channel) {
              float outputValue;
              if (0 <= coordY && coordY < ${e} && 0 <= coordX && coordX < ${t}) {
                  outputValue = getImage(batch, coordY, coordX, channel);
              } else {
                outputValue = float(${r});
              }
              return outputValue;
            }

            void main() {
              ivec4 coords = getOutputCoords();
              float outputValue;
              int batch = coords[0];
              int x = coords[2];
              int y = coords[1];
              int channel = coords[3];
              float xf = float(x);
              float yf = float(y);
              float a1 = getTransforms(batch, 0);
              float a2 = getTransforms(batch, 1);
              float a3 = getTransforms(batch, 2);
              float b1 = getTransforms(batch, 3);
              float b2 = getTransforms(batch, 4);
              float b3 = getTransforms(batch, 5);
              float c1 = getTransforms(batch, 6);
              float c2 = getTransforms(batch, 7);
              float projection = c1 * xf + c2 * yf + 1.0;
              if (projection == 0.0) {
                outputValue = float(${r});
              } else {
                float inX = (a1 * xf + a2 * yf + a3) / projection;
                float inY = (b1 * xf + b2 * yf + b3) / projection;
                float mapX = mapCoord(inX, float(${t}));
                float mapY = mapCoord(inY, float(${e}));

                if (${i} == 1) {
                  int coordY = int(round(mapY));
                  int coordX = int(round(mapX));
                  outputValue = readWithFillValue(batch, coordY, coordX,
                    channel);
                } else {
                  float yFloor = floor(mapY);
                  float xFloor = floor(mapX);
                  float yCeil = yFloor + 1.0;
                  float xCeil = xFloor + 1.0;
                  float valueYFloor = (xCeil - mapX) *
                  readWithFillValue(batch, int(yFloor), int(xFloor), channel) +
                  (mapX - xFloor) *
                  readWithFillValue(batch, int(yFloor), int(xCeil), channel);
                  float valueYCeil = (xCeil - mapX) *
                  readWithFillValue(batch, int(yCeil), int(xFloor), channel) +
                  (mapX - xFloor) *
                  readWithFillValue(batch, int(yCeil), int(xCeil), channel);
                  outputValue = (yCeil - mapY) * valueYFloor +
                  (mapY - yFloor) * valueYCeil;
                }
              }
              setOutput(outputValue);
            }
        `}};function TZ(e){let{inputs:t,backend:n,attrs:a}=e,{image:r,transforms:s}=t,{interpolation:i,fillMode:o,fillValue:u,outputShape:l}=a,[d,p,c,h]=r.shape,[m,f]=l!=null?l:[p,c],A=[d,m,f,h],g=new NZ(p,c,i,o,u,A);return n.runWebGLProgram(g,[r,s],"float32")}var CZ={kernelName:pl,backendName:"webgl",kernelFunc:TZ};function EZ(e){let{inputs:t,attrs:n,backend:a}=e,{axis:r}=n,{x:s}=t;Vl(s,"unique"),console.warn("WARNING: ","UI might be locked temporarily as data is being downloaded");let i=a.readSync(s.dataId),{outputValues:o,outputShape:u,indices:l}=YB(i,r,s.shape,s.dtype);return[a.makeTensorInfo(u,s.dtype,o),a.makeTensorInfo([l.length],"int32",l)]}var RZ={kernelName:Ec,backendName:"webgl",kernelFunc:EZ};function MZ(e){let{inputs:t,backend:n,attrs:a}=e,{value:r}=t,{axis:s}=a;s<0&&(s+=r.shape.length);let i=r,o=i.shape.length,u=r.shape[s],l=new Array(o-1),d=0;for(let f=0;f<o;f++)f!==s&&(l[d++]=i.shape[f]);let p=[],c=new Array(o).fill(0),h=i.shape.slice();h[s]=1;let m=new Array(u);for(let f=0;f<m.length;f++){c[s]=f;let A=zd({inputs:{x:i},backend:n,attrs:{begin:c,size:h}}),g=ye({inputs:{x:A},backend:n,attrs:{shape:l}});m[f]=g,p.push(A)}return p.forEach(f=>n.disposeIntermediateTensorInfo(f)),m}var FZ={kernelName:cl,backendName:"webgl",kernelFunc:MZ},$Z=class{constructor(e,t){this.variableNames=["x","segmentIds"];let n=e.windowSize,a=e.batchSize,r=e.inSize,s=e.numSegments,i=s*Math.ceil(r/n);this.outputShape=[a,i];let o="0.0",u="sumValue",l=Math.floor(n/4)*4,d=n%4,p=`
        sumValue += dot(values, segFilter);
    `,c="";r%n>0&&(c=`
        if (inIdx < 0 || inIdx >= ${r}) {
          return initializationValue;
        }
      `);let h="";r%n>0&&(h=`
        if (inIdx < 0 || inIdx >= ${r}) {
          return -1.0;
        }
      `),this.userCode=`
      const float initializationValue = ${o};

      float getValue(int batch, int inIdx) {
        ${c}
        return getX(batch, inIdx);
      }

      float getSegmentIdAtIndex(int inIdx) {
        ${h}
        return getSegmentIds(inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = int(floor(float(outIdx) / float(
          ${s})) * float(${n}));
        int currentSeg = int(mod(float(outIdx), float(${s})));

        float sumValue = 0.0;

        for (int i = 0; i < ${l}; i += 4) {
          int inIdx = inOffset + i;
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 3)) == currentSeg ? 1 : 0
          );

          ${p}
        }

        int inIdx = inOffset + ${l};
        if (${d===1}) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            initializationValue,
            initializationValue,
            initializationValue
          );

          int inIdxSeg = int(getSegmentIdAtIndex(inIdx));

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            0,
            0,
            0
          );

          ${p}
        } else if (${d===2}) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            initializationValue,
            initializationValue
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
              0,
              0
          );

          ${p}
        } else if (${d===3}) {
          vec4 values = vec4(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            initializationValue
          );

          vec4 segFilter = vec4(
            int(getSegmentIdAtIndex(inIdx)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 1)) == currentSeg ? 1 : 0,
            int(getSegmentIdAtIndex(inIdx + 2)) == currentSeg ? 1 : 0,
            0
          );

          ${p}
        }
        setOutput(${u});
      }
    `}};function DZ(e){let{inputs:t,backend:n,attrs:a}=e,{x:r,segmentIds:s}=t,{numSegments:i}=a,o=r.shape.length,u=[],l=0,d=F.getAxesPermutation([l],o),p=r;d!=null&&(p=xn({inputs:{x:r},backend:n,attrs:{perm:d}}),u.push(p),l=F.getInnerMostAxes(1,o)[0]);let c=F.segment_util.computeOutShape(p.shape,l,i),h=k.sizeFromShape([p.shape[l]]),m=ye({inputs:{x:p},backend:n,attrs:{shape:[-1,h]}});u.push(m);let f=zc(r.dtype),A=(v,b,w,N,C)=>{let E=v.shape[0],_=v.shape[1],$=F.segment_util.segOpComputeOptimalWindowSize(_,C),S={windowSize:$,inSize:_,batchSize:E,numSegments:C},z=new $Z(S,b),O=n.compileAndRun(z,[v,w],N);if(u.push(O),O.shape[1]===C)return O;let W=i6({backend:n,attrs:{start:0,stop:C,step:1,dtype:"float32"}}),G=u6({inputs:{x:W},backend:n,attrs:{reps:[_/$]}});return u.push(W),u.push(G),A(O,b,G,N,C)},g=A(m,"unsortedSegmentSum",s,f,i),y=ye({inputs:{x:g},backend:n,attrs:{shape:c}}),x=y;if(d!=null){u.push(y);let v=F.getUndoAxesPermutation(d);x=xn({inputs:{x},backend:n,attrs:{perm:v}})}return u.forEach(v=>n.disposeIntermediateTensorInfo(v)),x}var OZ={kernelName:qu,backendName:"webgl",kernelFunc:DZ},zZ=[dq,hq,KV,YV,ej,aj,sj,lj,dj,cj,Aj,yj,vj,Ij,Mj,Tj,Dj,Pj,zj,Vj,Uj,Gj,Zj,aU,sU,pU,hU,gU,bU,RV,SU,OU,_U,EU,BU,jU,LU,GU,KU,JU,eH,nH,sH,pH,hH,oH,AH,xH,vH,SH,EH,$H,zH,_H,PH,WH,VH,UH,GH,XH,JH,tG,rG,iG,uG,hG,gG,vG,EV,kG,kU,NG,EG,FG,FV,zG,WG,VG,KG,GG,QG,nq,iq,mq,kq,vq,Tq,Eq,Mq,xq,$q,Oq,Lq,jq,qq,tX,_V,aX,iX,uX,cX,oU,mX,gX,xX,wX,NX,DV,CX,EX,lU,Yq,FX,WX,zX,LV,UX,qX,YX,eK,rK,iK,uK,cK,fK,gK,bK,kK,NK,EK,FK,tU,Qq,OK,_K,LK,BK,jK,HK,qK,KK,JK,tZ,aZ,sZ,lZ,dZ,cZ,fZ,Jq,GV,gZ,bZ,kZ,SZ,CZ,qV,RZ,FZ,OZ,AX];for(let e of zZ)Ai(e);var Mn;(function(e){e[e.float32=0]="float32",e[e.int32=1]="int32",e[e.bool=2]="bool",e[e.string=3]="string",e[e.complex64=4]="complex64"})(Mn||(Mn={}));var Pd;(function(e){e[e.linear=0]="linear",e[e.relu=1]="relu",e[e.relu6=2]="relu6",e[e.prelu=3]="prelu",e[e.leakyrelu=4]="leakyrelu",e[e.sigmoid=5]="sigmoid"})(Pd||(Pd={}));var d6;function _Z(e){d6=e.wasm.cwrap(hi,null,["number","array","number","number","array","number","number","number","number","number","number","number","number"])}function PZ(e){let{inputs:t,backend:n,attrs:a}=e,{a:r,b:s,bias:i,preluActivationWeights:o}=t;if(r.dtype!=="float32"||s.dtype!=="float32")throw new Error("_FusedMatMul for non non-float32 tensors not yet supported.");let{transposeA:u,transposeB:l,activation:d,leakyreluAlpha:p}=a,c=n.dataIdMap.get(r.dataId).id,h=n.dataIdMap.get(s.dataId).id,m=0;if(i!=null){let C=n.dataIdMap.get(i.dataId);if(C.shape.length!==1)throw new Error(`_FusedMatMul only supports rank-1 bias but got rank ${C.shape.length}.`);m=C.id}let f=o==null?0:n.dataIdMap.get(o.dataId).id,A=Pd[d];if(A==null)throw new Error(`${d} activation not yet supported for FusedConv2D in the wasm backend.`);let g=u?r.shape[2]:r.shape[1],y=l?s.shape[1]:s.shape[2],x=r.shape[0],v=n.makeOutput([x,g,y],r.dtype),b=n.dataIdMap.get(v.dataId).id,w=new Uint8Array(new Int32Array(r.shape).buffer),N=new Uint8Array(new Int32Array(s.shape).buffer);return d6(c,w,r.shape.length,h,N,s.shape.length,u,l,A,m,f,p||0,b),v}var LZ={kernelName:hi,backendName:"wasm",setupFunc:_Z,kernelFunc:PZ};function bn(e){let t;function n(r){t=r.wasm.cwrap(e,null,["number","number"])}function a(r){let{backend:s,inputs:{x:i}}=r,o=s.dataIdMap.get(i.dataId).id,u=s.makeOutput(i.shape,i.dtype),l=s.dataIdMap.get(u.dataId).id;return k.sizeFromShape(u.shape)===0||t(o,l),u}return{kernelName:e,backendName:"wasm",setupFunc:n,kernelFunc:a}}var WZ=bn(fo);function vn(e,t,n){let a;function r(i){a=i.wasm.cwrap(e,null,["number","array","number","number","array","number","number","number"])}function s(i){let{backend:o,inputs:u}=i,{a:l,b:d}=u,p=o.dataIdMap.get(l.dataId).id,c=o.dataIdMap.get(d.dataId).id,h=n!=null?n:l.dtype,m=F.assertAndGetBroadcastShape(l.shape,d.shape),f=o.makeOutput(m,h);if(k.sizeFromShape(m)===0)return f;let A=new Uint8Array(new Int32Array(l.shape).buffer),g=new Uint8Array(new 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Got input batch dimensions of (${m}) and (${f}).`);let x=(A>g?r.shape.slice(0,-2):s.shape.slice(0,-2)).concat([c,h]);k.assert(d===p,()=>`Error in matMul: inner shapes (${d}) and (${p}) of Tensors with shapes ${r.shape} and ${s.shape} and transposeA=${i} and transposeB=${o} must match.`);let v=i?[A,d,c]:[A,c,d],b=o?[g,h,p]:[g,p,h],w=Ea({inputs:{x:r},backend:n,attrs:{shape:v}}),N=Ea({inputs:{x:s},backend:n,attrs:{shape:b}}),C=n.dataIdMap.get(w.dataId).id,E=n.dataIdMap.get(N.dataId).id,_=i?w.shape[2]:w.shape[1],$=o?N.shape[1]:N.shape[2],S=Math.max(A,g),z=n.makeOutput([S,_,$],w.dtype),O=n.dataIdMap.get(z.dataId).id,W=new Uint8Array(new Int32Array(w.shape).buffer),G=new Uint8Array(new Int32Array(N.shape).buffer);return g6(C,W,w.shape.length,E,G,N.shape.length,i,o,O),n.disposeData(w.dataId),n.disposeData(N.dataId),z.shape=x,z}var cY={kernelName:ws,backendName:"wasm",setupFunc:dY,kernelFunc:pY};function t0(e){let{inputs:{x:t},attrs:{dtype:n},backend:a}=e,r=a.makeOutput(t.shape,n),s=a.typedArrayFromHeap(t);return a.typedArrayFromHeap(r).set(s),r}var hY={kernelName:ks,backendName:"wasm",kernelFunc:t0},fY=bn(Is),y6;function mY(e){y6=e.wasm.cwrap(zr,null,["number","number","number","number"])}function AY(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{clipValueMin:s,clipValueMax:i}=a,o=n.dataIdMap.get(r.dataId).id,u=n.makeOutput(r.shape,r.dtype),l=n.dataIdMap.get(u.dataId).id;return y6(o,s,i,l),u}var gY={kernelName:zr,backendName:"wasm",setupFunc:mY,kernelFunc:AY};function x6(e){let{inputs:t,backend:n}=e,a=k.parseAxisParam(e.attrs.axis,t[0].shape)[0],r=F.computeOutShape(t.map(h=>h.shape),a),s=t.filter(h=>k.sizeFromShape(h.shape)>0);if(s.length===1)return Qh({inputs:{x:s[0]},backend:n});let i=n.makeOutput(r,t[0].dtype);if(k.sizeFromShape(r)===0)return i;let o=s.map(h=>h.shape);if(F.assertParamsConsistent(o,a),s[0].dtype==="string"){let h=s.map(x=>{let v=k.sizeFromShape(x.shape.slice(a));return Ea({inputs:{x},backend:n,attrs:{shape:[-1,v]}})}),m=h.map(x=>({vals:n.readSync(x.dataId),shape:x.shape}));r=F.computeOutShape(h.map(x=>x.shape),1);let f=h[0].shape[0]===1,A=vA(m,r,t[0].dtype,f),g=F.computeOutShape(s.map(x=>x.shape),a);i.shape=g;let y=n.dataIdMap.get(i.dataId);return y.stringBytes=F.fromStringArrayToUint8(A),h.forEach(x=>n.disposeData(x.dataId)),i}let u=k.sizeFromShape(s[0].shape.slice(0,a)),l=0,d=s.map(h=>{let m=k.sizeFromShape(h.shape.slice(a));return l+=m,m}),p=s.map(h=>n.typedArrayFromHeap(h)),c=n.typedArrayFromHeap(i);for(let h=0;h<u;h++){let m=h*l;for(let f=0;f<p.length;f++){let A=d[f],g=h*A,y=p[f].subarray(g,g+A);c.set(y,m),m+=A}}return i}var yY={kernelName:Io,backendName:"wasm",kernelFunc:x6},b6;function xY(e){b6=e.wasm.cwrap(Ss,null,["number","number","number","number","number","number","number","number","number","number","number","number","number","number","number","number","number","number","number"])}function bY(e){let{inputs:t,attrs:n,backend:a}=e,{x:r,filter:s}=t,i=a.dataIdMap.get(r.dataId).id,o=a.dataIdMap.get(s.dataId).id,{strides:u,dilations:l,pad:d,dimRoundingMode:p,dataFormat:c}=n,h=F.convertConv2DDataFormat(c),m=F.computeConv2DInfo(r.shape,s.shape,u,l,d,p,!1,h),f=m.filterHeight,A=m.filterWidth,g=m.padInfo.top,y=m.padInfo.right,x=m.padInfo.bottom,v=m.padInfo.left,b=m.dilationHeight,w=m.dilationWidth,N=m.strideHeight,C=m.strideWidth,E=m.inChannels,_=m.outChannels,$=m.padInfo.type==="SAME"?1:0;if(m.dataFormat!=="channelsLast")throw new Error(`wasm backend Conv2D does not support dataFormat:'${m.dataFormat}'. 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XJ(e){let{backend:t,inputs:n,attrs:a}=e,{iouThreshold:r,maxOutputSize:s,scoreThreshold:i}=a,{boxes:o,scores:u}=n,l=t.dataIdMap.get(o.dataId).id,d=t.dataIdMap.get(u.dataId).id,p=P6(l,d,s,r,i),{pSelectedIndices:c,selectedSize:h,pSelectedScores:m,pValidOutputs:f}=ng(t,p);return t.wasm._free(m),t.wasm._free(f),t.makeOutput([h],"int32",c)}var KJ={kernelName:qo,backendName:"wasm",setupFunc:qJ,kernelFunc:XJ},L6;function ZJ(e){L6=e.wasm.cwrap(Xo,"number",["number","number","number","number","number","bool"])}function YJ(e){let{backend:t,inputs:n,attrs:a}=e,{iouThreshold:r,maxOutputSize:s,scoreThreshold:i,padToMaxOutputSize:o}=a,{boxes:u,scores:l}=n,d=t.dataIdMap.get(u.dataId).id,p=t.dataIdMap.get(l.dataId).id,c=L6(d,p,s,r,i,o),{pSelectedIndices:h,selectedSize:m,pSelectedScores:f,pValidOutputs:A}=ng(t,c);t.wasm._free(f);let g=t.makeOutput([m],"int32",h),y=t.makeOutput([],"int32",A);return[g,y]}var JJ={kernelName:Xo,backendName:"wasm",setupFunc:ZJ,kernelFunc:YJ},W6;function QJ(e){W6=e.wasm.cwrap(Ko,"number",["number","number","number","number","number","number"])}function eQ(e){let{backend:t,inputs:n,attrs:a}=e,{iouThreshold:r,maxOutputSize:s,scoreThreshold:i,softNmsSigma:o}=a,{boxes:u,scores:l}=n,d=t.dataIdMap.get(u.dataId).id,p=t.dataIdMap.get(l.dataId).id,c=W6(d,p,s,r,i,o),{pSelectedIndices:h,selectedSize:m,pSelectedScores:f,pValidOutputs:A}=ng(t,c);t.wasm._free(A);let g=t.makeOutput([m],"int32",h),y=t.makeOutput([m],"float32",f);return[g,y]}var tQ={kernelName:Ko,backendName:"wasm",setupFunc:QJ,kernelFunc:eQ},nQ=!1,aQ=vn(Go,nQ,"bool"),B6;function rQ(e){B6=e.wasm.cwrap(qs,null,["number","number","number","number","number"])}function sQ(e){let{inputs:t,backend:n,attrs:a}=e,{indices:r}=t,{depth:s,onValue:i,offValue:o}=a,u=n.makeOutput([...r.shape,s],"int32"),l=n.dataIdMap.get(u.dataId).id,d=n.dataIdMap.get(r.dataId).id;return B6(d,s,i,o,l),u}var iQ={kernelName:qs,backendName:"wasm",setupFunc:rQ,kernelFunc:sQ};function oQ(e){let{inputs:{x:t},backend:n}=e,a=n.makeOutput(t.shape,t.dtype);return n.typedArrayFromHeap(a).fill(1),a}var lQ={kernelName:Zo,backendName:"wasm",kernelFunc:oQ};function uQ(e){let{inputs:t,backend:n,attrs:a}=e,{axis:r}=a;if(t.length===1)return eg({inputs:{input:t[0]},backend:n,attrs:{dim:r}});let s=t[0].shape,i=t[0].dtype;t.forEach(d=>{k.assertShapesMatch(s,d.shape,"All tensors passed to stack must have matching shapes"),k.assert(i===d.dtype,()=>"All tensors passed to stack must have matching dtypes")});let o=[],u=t.map(d=>{let p=eg({inputs:{input:d},backend:n,attrs:{dim:r}});return o.push(p),p}),l=x6({inputs:u,backend:n,attrs:{axis:r}});return o.forEach(d=>n.disposeData(d.dataId)),l}var dQ={kernelName:Yo,backendName:"wasm",kernelFunc:uQ},V6;function pQ(e){V6=e.wasm.cwrap(Xs,null,["number","array","number","number","array","array","number","number"])}function cQ(e){let{inputs:{x:t},backend:n,attrs:{paddings:a,constantValue:r}}=e,s=a.map((m,f)=>m[0]+t.shape[f]+m[1]),i=n.dataIdMap.get(t.dataId).id,o=n.makeOutput(s,t.dtype),u=n.dataIdMap.get(o.dataId).id,l=new Uint8Array(new Int32Array(t.shape).buffer),d=a.map(m=>m[0]),p=a.map(m=>m[1]),c=new Uint8Array(new Int32Array(d).buffer),h=new Uint8Array(new Int32Array(p).buffer);return V6(i,l,t.shape.length,Mn[t.dtype],c,h,r,u),o}var hQ={kernelName:Xs,backendName:"wasm",kernelFunc:cQ,setupFunc:pQ},fQ=!1,mQ=vn(Ks,fQ),j6;function AQ(e){j6=e.wasm.cwrap(Zs,null,["number","number","number"])}function gQ(e){let{inputs:t,backend:n}=e,{x:a,alpha:r}=t,s=n.dataIdMap.get(a.dataId).id,i=n.dataIdMap.get(r.dataId).id,o=n.makeOutput(a.shape,"float32"),u=n.dataIdMap.get(o.dataId).id;return j6(s,i,u),o}var yQ={kernelName:Zs,backendName:"wasm",setupFunc:AQ,kernelFunc:gQ},U6;function xQ(e){U6=e.wasm.cwrap(Jo,null,["number","number","number","number"])}function bQ(e){let{backend:t,inputs:n,attrs:a}=e,{axis:r,keepDims:s}=a,{x:i}=n,o=t.dataIdMap.get(i.dataId).id,u=o,l=i,{transposed:d,axes:p,originalAxes:c,inputWasTransposed:h}=Qr(i,r,t),m=p;if(h){let x=t.dataIdMap.get(d.dataId).id;x!==o&&(l=d,u=x,m=F.getInnerMostAxes(m.length,l.shape.length))}F.assertAxesAreInnerMostDims("prod",m,l.shape.length);let[f,A]=F.computeOutAndReduceShapes(l.shape,m),g=k.sizeFromShape(A),y=t.makeOutput(f,l.dtype);if(k.sizeFromShape(l.shape)!==0){let x=t.dataIdMap.get(y.dataId).id;U6(u,g,Mn[y.dtype],x)}if(h&&t.disposeData(d.dataId),s){let x=F.expandShapeToKeepDim(y.shape,c);y.shape=x}return y}var vQ={kernelName:Jo,backendName:"wasm",setupFunc:xQ,kernelFunc:bQ},wQ=e=>{let{backend:t,attrs:n}=e,{start:a,stop:r,step:s,dtype:i}=n,o=IA(a,r,s,i),u=t.makeOutput([o.length],i);return t.typedArrayFromHeap(u).set(o),u},kQ={kernelName:ju,backendName:"wasm",kernelFunc:wQ},IQ=!0,SQ=vn(Rs,IQ),NQ=bn(Ys),TQ=bn(Qs),H6;function CQ(e){H6=e.wasm.cwrap(Js,null,["number","number","number","number","number","number","number","number","number","number"])}function EQ(e){let{backend:t,inputs:n,attrs:a}=e,{images:r}=n,{alignCorners:s,halfPixelCenters:i,size:o}=a,[u,l]=o,[d,p,c,h]=r.shape,m=[d,u,l,h],f=t.dataIdMap.get(r.dataId),A;f.dtype!=="float32"&&(A=t0({backend:t,inputs:{x:r},attrs:{dtype:"float32"}}),f=t.dataIdMap.get(A.dataId));let g=f.id,y=t.makeOutput(m,"float32");if(k.sizeFromShape(r.shape)===0)return y;let x=t.dataIdMap.get(y.dataId).id;return H6(g,d,p,c,h,u,l,s?1:0,i?1:0,x),A!=null&&t.disposeData(A.dataId),y}var RQ={kernelName:Js,backendName:"wasm",setupFunc:CQ,kernelFunc:EQ},G6;function MQ(e){G6=e.wasm.cwrap(ei,null,["number","array","number","array","number","number"])}function FQ(e){let{inputs:t,backend:n,attrs:a}=e,{x:r}=t,{dims:s}=a,i=k.parseAxisParam(s,r.shape);if(r.shape.length===0)return Qh({inputs:{x:r},backend:n});let o=n.makeOutput(r.shape,r.dtype),u=n.dataIdMap.get(r.dataId).id,l=n.dataIdMap.get(o.dataId).id,d=new Uint8Array(new Int32Array(i).buffer),p=new Uint8Array(new Int32Array(r.shape).buffer);G6(u,d,i.length,p,r.shape.length,l);let c=Ea({inputs:{x:o},attrs:{shape:r.shape},backend:n});return n.disposeData(o.dataId),c}var $Q={kernelName:ei,backendName:"wasm",kernelFunc:FQ,setupFunc:MQ},q6;function DQ(e){q6=e.wasm.cwrap(fl,null,["number","number","number","number","number","number","number","number","array","number","number"])}function OQ(e){let{inputs:t,backend:n,attrs:a}=e,{image:r}=t,{radians:s,fillValue:i,center:o}=a,u=n.makeOutput(r.shape,r.dtype),l=n.dataIdMap.get(r.dataId).id,d=n.dataIdMap.get(u.dataId).id,[p,c,h,m]=r.shape,[f,A]=F.getImageCenter(o,c,h),g=i===0,y=255,x=typeof i=="number"?[i,i,i,g?0:y]:[...i,y],v=new Uint8Array(new Int32Array(x).buffer);return q6(l,p,c,h,m,s,f,A,v,x.length,d),u}var zQ={kernelName:fl,backendName:"wasm",kernelFunc:OQ,setupFunc:DQ},_Q=bn(ti),PQ=bn(ni),X6;function LQ(e){X6=e.wasm.cwrap(tl,null,["number","number","number","number","number","number","array","number","number"])}function WQ(e){let{backend:t,inputs:n,attrs:a}=e,{indices:r,updates:s}=n,{shape:i}=a,o=t.makeOutput(i,s.dtype);if(k.sizeFromShape(i)===0)return o;let{sliceRank:u,numUpdates:l,sliceSize:d,strides:p,outputSize:c}=y1.calculateShapes(s,r,i),h=t.dataIdMap.get(r.dataId).id,m=t.dataIdMap.get(s.dataId).id,f=new Uint8Array(new Int32Array(p).buffer),A=t.dataIdMap.get(o.dataId).id;return X6(h,m,Mn[s.dtype],u,l,d,f,c,A),o}var BQ={kernelName:tl,backendName:"wasm",setupFunc:LQ,kernelFunc:WQ},K6;function VQ(e){K6=e.wasm.cwrap("SelectV2",null,["number","number","number","number","number"])}function jQ(e){let{inputs:t,backend:n}=e,{condition:a,t:r,e:s}=t,i=n.dataIdMap.get(a.dataId).id,o=n.dataIdMap.get(r.dataId).id,u=n.dataIdMap.get(s.dataId).id,l=n.makeOutput(r.shape,r.dtype),d=n.dataIdMap.get(l.dataId).id,p=a.shape.length,c=r.shape.length,h=p===0||p>1||c===1?1:k.sizeFromShape(r.shape.slice(1));return K6(i,o,u,h,d),l}var UQ={kernelName:nl,backendName:"wasm",kernelFunc:jQ,setupFunc:VQ},Z6;function HQ(e){Z6=e.wasm.cwrap(ri,null,["number","number"])}function GQ(e){let{backend:t,inputs:{x:n}}=e,a=t.dataIdMap.get(n.dataId).id,r=t.makeOutput(n.shape,n.dtype),s=t.dataIdMap.get(r.dataId).id;return k.sizeFromShape(r.shape)===0||Z6(a,s),r}var qQ={kernelName:"Sigmoid",backendName:"wasm",setupFunc:HQ,kernelFunc:GQ},XQ=bn(ai);function n0(e){let{inputs:{x:t},attrs:{begin:n,size:a},backend:r}=e,[s,i]=hn.parseSliceParams(t,n,a),o=hn.isSliceContinous(t.shape,s,i),u=r.readSync(t.dataId),l=r.makeOutput(i,t.dtype),d=k.computeStrides(t.shape),p=r.dataIdMap.get(l.dataId);if(o){let 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All inputs should only appear once. Found: ${this.inputs.map(g=>g.name)}`);es(this.outputs).length!==this.outputs.length&&console.warn(`The list of outputs passed to the model is redundant. All outputs should only appear once. Found: ${this.outputs.map(g=>g.name)}`),this.inputLayers=[],this.inputLayersNodeIndices=[],this.inputLayersTensorIndices=[],this.outputLayers=[],this.outputLayersNodeIndices=[],this.outputLayersTensorIndices=[],this.layers=[],this.internalContainerRefs=[];for(let g of this.outputs){let y=g.sourceLayer,x=g.nodeIndex,v=g.tensorIndex;this.outputLayers.push(y),this.outputLayersNodeIndices.push(x),this.outputLayersTensorIndices.push(v)}for(let g of this.inputs){let y=g.sourceLayer,x=g.nodeIndex,v=g.tensorIndex;Qa(x===0,"input layer has >1 nodes"),Qa(v===0,"input layer has >1 tensors"),this.inputLayers.push(y),this.inputLayersNodeIndices.push(x),this.inputLayersTensorIndices.push(v)}this.inputNames=[],this.outputNames=[],this.feedInputShapes=[],this.feedInputNames=[],this.feedOutputNames=[];for(let g=0;g<this.inputLayers.length;g++){let y=this.inputLayers[g];if(!(y instanceof eu))throw new TypeError(`Input layers to a LayersModel must be InputLayer objects. Received inputs: ${e.inputs}. Input ${g} (0-based) originates from layer type ${y.getClassName()}.`);this.inputNames.push(y.name),this.feedInputShapes.push(y.batchInputShape),this.feedInputNames.push(y.name)}for(let g of this.outputLayers)this.outputNames.push(g.name);this.internalInputShapes=this.inputs.map(g=>g.shape),this.internalOutputShapes=this.outputs.map(g=>g.shape);let t={},n={},a={},r={},s={},i=[],o=(g,y,x,v,b,w)=>{(v==null||b==null||w==null)&&(v=g.sourceLayer,b=g.nodeIndex,w=g.tensorIndex);let N=v.inboundNodes[b];if(x.indexOf(N)!==-1)throw new Ma(`The tensor ${g.name} at layer "${v.name}" is part of a cycle.`);if(y.indexOf(N)!==-1)return;this.containerNodes.add(tr.nodeKey(v,b)),v.id in s||(s[v.id]=Object.keys(s).length),x.indexOf(N)===-1&&x.push(N);let C=N.inboundLayers.length;for(let E=0;E<C;E++){let _=N.inputTensors[E],$=N.inboundLayers[E],S=N.nodeIndices[E],z=N.tensorIndices[E];o(_,y,x,$,S,z)}for(y.push(N);x.indexOf(N)>=0;)x.splice(x.indexOf(N),1);i.push(N)},u=[],l=[];for(let g of this.outputs)o(g,u,l);let d=i.slice().reverse();for(let g of d){n[g.id]=g,g.id in t||(t[g.id]=0);let y=t[g.id],x=a[g.outboundLayer.id]==null?0:a[g.outboundLayer.id];y=Math.max(y,x),a[g.outboundLayer.id]=y,r[g.outboundLayer.id]=g.outboundLayer,t[g.id]=y;for(let v=0;v<g.inboundLayers.length;v++){let b=g.inboundLayers[v],w=g.nodeIndices[v],N=b.inboundNodes[w],C=t[N.id]==null?0:t[N.id];t[N.id]=Math.max(y+1,C),n[N.id]=N}}let p={};for(let g in t){let y=t[g];y in p||(p[y]=[]),p[y].push(n[g])}let c={};for(let g in a){let y=a[g];y in c||(c[y]=[]),c[y].push(r[g])}let h=Object.keys(c).map(g=>parseInt(g,10)).sort(r0);this.layers=[];for(let g of h){let y=c[g];y.sort((x,v)=>{let b=s[x.id],w=s[v.id];return b<w?-1:b>w?1:0});for(let x of y)x instanceof tr&&this.internalContainerRefs.push(x),this.layers.push(x)}this.layersByDepth=c,h=Object.keys(p).map(g=>parseInt(g,10)).sort(r0);let m=this.inputs.slice(),f=[];for(let g of h)for(let y of p[g]){let x=y.outboundLayer;if(x!=null){for(let v of y.inputTensors)if(m.indexOf(v)===-1)throw new Ma(`Graph disconnected: cannot obtain value for tensor ${v} at layer "${x.name}". The following previous layers were accessed without issue: ${f}`);for(let v of y.outputTensors)m.push(v);f.push(x.name)}}this.nodesByDepth=p;let A=this.layers.map(g=>g.name);for(let g of A){let y=A.filter(x=>x===g).length;if(y!==1)throw new Ma(`The name "${g}" is used ${y} times in the model. All layer names should be unique. Layer names: `+JSON.stringify(A))}this.outboundNodes=[],this.inboundNodes=[],new y0({outboundLayer:this,inboundLayers:[],nodeIndices:[],tensorIndices:[],inputTensors:this.inputs,outputTensors:this.outputs,inputMasks:this.inputs.map(g=>null),outputMasks:this.outputs.map(g=>null),inputShapes:this.inputs.map(g=>g.shape),outputShapes:this.outputs.map(g=>g.shape)}),this.built=!0,this._refCount=1}assertNotDisposed(){if(this._refCount===0)throw new Error(`Container '${this.name}' is already disposed.`)}dispose(){this.assertNotDisposed();let e={refCountAfterDispose:null,numDisposedVariables:0};if(--this._refCount==0){for(let t of this.layers)e.numDisposedVariables+=t.dispose().numDisposedVariables;for(let t of this.internalContainerRefs)e.numDisposedVariables+=t.dispose().numDisposedVariables}return e.refCountAfterDispose=this._refCount,e}get trainable(){return this.trainable_}set trainable(e){this.layers.forEach(t=>{t._trainableWeights.forEach(n=>n.trainable=e)}),this.trainable_=e}get trainableWeights(){if(this._trainableWeights.length>0)throw new U("Container instance unexpectedly contains _trainableWeights.The trainable weights of a Container are a union of the trainable weights of its consituent Layers. Its own _trainableWeights must remain an empty Array.");if(!this.trainable)return[];let e=[];for(let t of this.layers)e=e.concat(t.trainableWeights);return e}get nonTrainableWeights(){let e=[];for(let t of this.layers)e.push(...t.nonTrainableWeights);if(!this.trainable){let t=[];for(let n of this.layers)t.push(...n.trainableWeights);return t.concat(e)}return e}get weights(){return this.trainableWeights.concat(this.nonTrainableWeights)}loadWeights(e,t=!0){let n={},a=0;for(let s of this.layers)for(let i of s.weights){if(n[i.originalName]!=null)throw new U(`Duplicate weight name: ${i.originalName}`);n[i.originalName]=i,a++}let r=[];for(let s in e){let i=s;if(n[s]==null){let o=s.split("/");i=o.slice(0,-2).concat([o[o.length-1]]).join("/")}if(n[i]!=null)r.push([n[i],e[s]]);else if(t)throw new U(`Provided weight data has no target variable: ${s}`);delete n[i]}if(t){let s=[];for(let i in n)s.push(i);if(s.length>0)throw new U(`${s.length} of ${a} weights are not set: ${s}`)}Tg(r)}updatedConfig(){let e=this.getConfig(),t={};return t.className=this.getClassName(),t.config=e,t.kerasVersion=`tfjs-layers ${Og}`,t.backend="TensorFlow.js",t}toJSON(e,t=!0){let n=Dg(this.updatedConfig());return t?JSON.stringify(n):n}call(e,t){return V(()=>{e=gt(e);let n=new qi;for(let a=0;a<this.inputs.length;++a)n.add(this.inputs[a],e[a]);return Yd(this.outputs,n,t)})}computeMask(e,t){return V(()=>{e=gt(e);let n;return t==null?n=Bi(null,e.length):n=gt(t),this.runInternalGraph(e,n)[1]})}computeOutputShape(e){let t=A0(e);if(t.length!==this.inputLayers.length)throw new U(`Invalid inputShape argument ${e}: model has ${this.inputLayers.length} tensor inputs.`);let n={};for(let i=0;i<t.length;i++){let o=this.inputLayers[i],u=t[i],l=o.name+"_0_0";n[l]=u}let a=Object.keys(this.nodesByDepth).map(i=>parseInt(i,10)).sort(r0);if(a.length>1)for(let i of a){let o=this.nodesByDepth[i];for(let u of o){let l=u.outboundLayer;if(this.inputLayers.map(m=>m.id).indexOf(l.id)!==-1)continue;let d=[];for(let m=0;m<u.inboundLayers.length;m++){let f=u.inboundLayers[m],A=u.nodeIndices[m],g=u.tensorIndices[m],y=`${f.name}_${A}_${g}`,x=n[y];d.push(x)}let p=l.computeOutputShape(Fn(d)),c=A0(p),h=l.inboundNodes.indexOf(u);for(let m=0;m<c.length;m++){let f=`${l.name}_${h}_${m}`;n[f]=c[m]}}}let r=[],s=[];for(let i=0;i<this.outputLayers.length;i++){let o=this.outputLayers[i],u=this.outputLayersNodeIndices[i],l=this.outputLayersTensorIndices[i],d=`${o.name}_${u}_${l}`;s.push(d)}for(let i=0;i<s.length;i++){let o=s[i];Qa(o in n),r.push(n[o])}return Fn(r)}runInternalGraph(e,t){t==null&&(t=Bi(null,e.length));let n={};for(let o=0;o<this.inputs.length;++o){let u=this.inputs[o],l=e[o],d=t[o];n[u.id]=[l,d]}let a=Object.keys(this.nodesByDepth).map(o=>parseInt(o,10)).sort(r0);for(let o of a){let u=this.nodesByDepth[o];for(let l of u){let d=l.outboundLayer,p=l.inputTensors,c=l.outputTensors,h=new Array;for(let m of p)m.id in n&&h.push(n[m.id]);if(h.length===p.length){let m={},f,A,g,y;if(l.callArgs!=null&&(m=l.callArgs),h.length===1){let[x,v]=h[0];m.mask==null&&(m.mask=v),g=gt(d.call(x,m)),y=gt(d.computeMask(x,v)),f=[x],A=[v]}else f=h.map(x=>x[0]),A=h.map(x=>x[1]),m.mask==null&&(m.mask=A),g=gt(d.call(f,m)),y=gt(d.computeMask(f,A));if(d.activityRegularizer)throw new ze("LayersModel invocation with concrete Tensor value(s) in the presence of activity regularizer(s) is not supported yet.");for(let x=0;x<c.length;++x){let v=c[x],b=g[x],w=y[x];n[v.id]=[b,w]}}}}let r=[],s=[],i=[];for(let o of this.outputs){Qa(o.id in n,`Could not compute output ${o.name} : ${o.id}`);let[u,l]=n[o.id];i.push(u.shape),r.push(u),s.push(l)}return[r,s,i]}buildNodeConversionMap(e){let t={},n;for(let a of this.layers){n=a instanceof tr?1:0;for(let r=0;r<a.inboundNodes.length;r++){let s=tr.nodeKey(a,r);this.containerNodes.has(s)&&(t[s]=n,n+=1)}}return t}getLayer(e,t){if(t!=null){if(this.layers.length<=t)throw new U(`Was asked to retrieve layer at index ${t}, but model only has ${this.layers.length} layer(s).`);return this.layers[t]}else if(e==null)throw new U("Provide either a layer name or layer index");for(let n of this.layers)if(n.name===e)return n;throw new U(`No such layer: ${e}`)}calculateLosses(){return V(()=>{let e=[];for(let t of this.layers)for(let n=0;n<t.inboundNodes.length;++n){let a=tr.nodeKey(t,n);this.containerNodes.has(a)&&e.push(...t.calculateLosses())}return e})}getConfig(){let e={name:this.name},t=this.buildNodeConversionMap(this.layers),n=[];for(let s of this.layers){let i=s.getClassName(),o=s.getConfig(),u=[];for(let d=0;d<s.inboundNodes.length;d++){let p=s.inboundNodes[d],c=tr.nodeKey(s,d),h={};if(this.containerNodes.has(c)){if(p.callArgs)try{JSON.stringify(p.callArgs),h=p.callArgs}catch(m){console.warn(`Layer ${s.name} was passed non-serializable keyword arguments: ${p.callArgs}. They will not be included in the serialized model (and thus will be missing at deserialization time).`),h={}}if(p.inboundLayers.length>0){let m=[];for(let f=0;f<p.inboundLayers.length;f++){let A=p.inboundLayers[f],g=p.nodeIndices[f],y=p.tensorIndices[f],x=tr.nodeKey(A,g),v=t[x];v==null&&(v=0),m.push([A.name,v,y,h])}u.push(m)}}}let l={};l.name=s.name,l.className=i,l.config=o,l.inboundNodes=u,n.push(l)}e.layers=n;let a=[];for(let s=0;s<this.inputLayers.length;s++){let i=this.inputLayers[s],o=this.inputLayersNodeIndices[s],u=tr.nodeKey(i,o);if(!this.containerNodes.has(u))continue;let l=t[u];l==null&&(l=0);let d=this.inputLayersTensorIndices[s];a.push([i.name,l,d])}e.inputLayers=a;let r=[];for(let s=0;s<this.outputLayers.length;s++){let i=this.outputLayers[s],o=this.outputLayersNodeIndices[s],u=tr.nodeKey(i,o);if(!this.containerNodes.has(u))continue;let l=t[u];l==null&&(l=0);let d=this.outputLayersTensorIndices[s];r.push([i.name,l,d])}return e.outputLayers=r,e}static fromConfig(e,t,n={},a=!1){let r={},s={};function i(f,A){f.name in s?s[f.name].push(A):s[f.name]=[A]}function o(f,A){let g=[],y;for(let x of A){let v=x[0],b=x[1],w=x[2];if(y=x[3]==null?{}:x[3],!(v in r)){i(f,A);return}let N=r[v];if(N.inboundNodes.length<=b){i(f,A);return}let C=N.inboundNodes[b];g.push(C.outputTensors[w])}g.length>0&&f.apply(Fn(g),y)}function u(f){let A=f.name,g=Oa(f,t.customObjects!=null?t.customObjects:{});g.setFastWeightInitDuringBuild(a),r[A]=g,f.inboundNodes.forEach(y=>{if(!(y instanceof Array))throw new U(`Corrupted configuration, expected array for nodeData: ${y}`);i(g,y)})}let l=t.name,d=t.layers;for(let f of d)u(f);for(;!Gne(s);)for(let f of d){let A=r[f.name];if(A.name in s){let g=s[A.name];delete s[A.name];for(let y of g)o(A,y)}}let p=[],c=[],h=t.inputLayers;for(let f of h){let A=f[0],g=f[1],y=f[2];Qa(A in r);let x=r[A].inboundNodes[g].outputTensors;p.push(x[y])}let m=t.outputLayers;for(let f of m){let A=f[0],g=f[1],y=f[2];Qa(A in r);let x=r[A].inboundNodes[g].outputTensors;c.push(x[y])}return new e({inputs:p,outputs:c,name:l})}get stateful(){if(this._stateful)throw new U("Container instance unexpectedly has _stateful = true. The statefulness of a Container is determined by the Layers it contains. Its _stateful property must remain the default false.");for(let e of this.layers)if(e.stateful)return!0;return!1}resetStates(){V(()=>{this.layers.forEach(e=>{e.stateful&&e.resetStates()})})}};function Are(e,t,n){let a=t.length;if(e==null||Array.isArray(e)&&e.length===0)return t.map(r=>null);if(a===1)return Array.isArray(e)&&e.length===1?e:typeof e=="object"&&t[0]in e?[e[t[0]]]:[e];if(Array.isArray(e)){if(e.length!==a)throw new Error(`Provided ${n} is an array of ${e.length} element(s), but the model has ${a} outputs. Make sure a set of weights is provided for each model output.`);return e}else if(typeof e=="object"&&Object.keys(e).length>0&&typeof e[Object.keys(e)[0]]=="object"){let r=[];return t.forEach(s=>{s in e?r.push(e[s]):r.push(null)}),r}else throw new Error(`The model has multiple (${a}) outputs, so ${n} must be either an array with ${a} elements or an object with ${t} keys. Provided ${n} not understood: ${JSON.stringify(e)}`)}function a8(e,t){return Are(e,t,"classWeight")}async function r8(e,t,n,a){if(t!=null||a!=null)throw new Error("Support sampleWeight is not implemented yet");if(n!=null){let r=V(()=>{if(e.shape.length===1)return e.clone();if(e.shape.length===2)if(e.shape[1]>1){let o=1;return e.argMax(o)}else{if(e.shape[1]===1)return e.reshape([e.shape[0]]);throw new Error(`Encountered unexpected last-dimension size (${e.shape[1]}) during handling of class weights. The size is expected to be >= 1.`)}else throw new Error(`Unexpected rank of target (y) tensor (${e.rank}) during handling of class weights. The rank is expected to be 1 or 2.`)}),s=Array.from(await r.data());he(r);let i=[];return s.forEach(o=>{if(n[o]==null)throw new Error(`classWeight must contain all classes in the training data. The class ${o} exists in the data but not in classWeight`);i.push(n[o])}),Dt(i,"float32")}else return null}function gre(e,t){return B(e,t)}var yre=32;function s8(e,t){let n,a,r=t;n=r.xs,a=r.ys,k.assert(n!=null&&a!=null,()=>`A Dataset iterator for fitDataset() is expected to generate objects of the form \`{xs: xVal, ys: yVal}\`, where the two values may be \`tf.Tensor\`, an array of Tensors, or a map of string to Tensor.  The provided Dataset instead generates ${t}`);let s=i8("input",e.inputNames,n),i=i8("output",e.outputNames,a),o=s[0].shape[0];k.assert(s.length===e.inputs.length,()=>`LayersModel has ${e.inputs.length} inputs, but the dataset provides ${s.length} inputs.  (Expected input keys: ${JSON.stringify(e.inputNames)})`),k.assert(i.length===e.outputs.length,()=>`LayersModel has ${e.outputs.length} outputs, but the dataset provides ${i.length} outputs.  (Expected output keys: ${JSON.stringify(e.outputNames)})`);for(let u=0;u<s.length;u++)k.assert(s[u].shape[0]===o,()=>`Batch size mismatch: input ${e.inputNames[u]} has ${s[u].shape[0]}; expected  ${o} based on input ${e.inputNames[0]}.`);for(let u=0;u<i.length;u++)k.assert(i[u].shape[0]===o,()=>`Batch size mismatch: output ${e.outputNames[u]} has ${i[u].shape[0]}; expected  ${o} based on input ${e.inputNames[0]}.`);return{xs:s,ys:i}}function i8(e,t,n){if(n instanceof Be)return[n];if(Array.isArray(n))return k.assert(n.length===t.length,()=>`Received an array of ${n.length} Tensors, but expected ${t.length} to match the ${e} keys ${t}.`),n;{let a=[];for(let r of t){if(n[r]==null)throw new U(`The feature data generated by the dataset lacks the required ${e} key '${r}'.`);a.push(n[r])}return a}}function xre(e){if(e.length===3)throw new ze("Validation with sample weights is not implemented yet.");return{xs:e[0],ys:e[1]}}async function bre(e,t,n){let a=n.batchesPerEpoch!=null;if(k.assert(e.optimizer!=null,()=>"You must compile a model before training/testing. Use LayersModel.compile(modelCompileConfig)."),k.assert(n!=null,()=>"For fitDataset(), the 2nd argument (config) is required, but it is not provided in this call."),k.assert(n.epochs!=null&&n.epochs>0&&Number.isInteger(n.epochs),()=>`For fitDataset(), config.epochs is expected to be a positive integer, but got ${n.epochs}`),k.assert(!a||n.batchesPerEpoch>0&&Number.isInteger(n.batchesPerEpoch),()=>`For fitDataset(), config.batchesPerEpoch is expected to be a positive integer if specified, but got ${n.batchesPerEpoch}`),k.assert(n.validationSplit==null,()=>"`validationSplit` is not supported by `fitDataset()`. Use validationData instead."),e.isTraining)throw new Error("Cannot start training because another fit() call is ongoing.");e.isTraining=!0;try{let r=n.validationData!=null,s,i;if(r)if(o8(n.validationData))k.assert(n.validationBatches==null||n.validationBatches>0&&Number.isInteger(n.validationBatches),()=>`For fitDataset() with dataset-based validation, config.validationBatches is expected not to be provided, or to be a positive integer, but got ${n.validationBatches}`);else{let A=xre(n.validationData);s=A.xs,i=A.ys}let o=e.makeTrainFunction(),u=e.getDedupedMetricsNames(),l;r?l=u.slice().concat(u.map(A=>"val_"+A)):l=u.slice();let d=H4(n.callbacks,n.yieldEvery),p=n.verbose==null?1:n.verbose,{callbackList:c,history:h}=G4(d,p,n.epochs,null,null,vre(t,n),null,r,l);c.setModel(e),e.history=h,await c.onTrainBegin(),e.stopTraining_=!1;let m=n.initialEpoch==null?0:n.initialEpoch,f=await t.iterator();for(;m<n.epochs;){let A={};await c.onEpochBegin(m);let g=0,y=0;for(a||(f=await t.iterator());a?g<n.batchesPerEpoch:!0;){let x=await f.next();if(a&&x.done){console.warn(`You provided \`batchesPerEpoch\` as ${n.batchesPerEpoch}, but your dataset iterator ran out of data after ${g} batches; interrupting training. 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t}makeTrainFunction(){return e=>{let t=[],n=e.slice(0,this.inputs.length),a=e.slice(this.inputs.length,this.inputs.length+this.outputs.length),r=e.slice(this.inputs.length+this.outputs.length,this.inputs.length+this.outputs.length*2),s=[],i=()=>{let l=[];for(let h=0;h<this.inputs.length;++h)l.push({key:this.inputs[h],value:n[h]});let d=new qi(l),p=Yd(this.outputs,d,{training:!0}),c;for(let h=0;h<this.lossFunctions.length;++h){let m=this.lossFunctions[h](a[h],p[h]);r[h]!=null&&(m=gre(m,r[h]));let f=Nt(m);t.push(f),h===0?c=m:c=ie(c,m)}for(let h=0;h<this.metricsTensors.length;++h){let m;if(this.outputs.length>1&&h<this.outputs.length)m=t[h];else{let f=this.metricsTensors[h][0],A=this.metricsTensors[h][1];m=Nt(f(a[A],p[A]))}Xt(m),s.push(m)}return c=Nt(c),this.calculateLosses().forEach(h=>{c=ie(c,h)}),c},o=this.collectedTrainableWeights.map(l=>l.read()),u=!0;return[this.optimizer_.minimize(i,u,o)].concat(s)}}makeTestFunction(){this.testFunction=e=>V(()=>{let t=[],n,a=e.slice(0,this.inputs.length),r=e.slice(this.inputs.length,this.inputs.length+this.outputs.length),s=[];for(let u=0;u<this.inputs.length;++u)s.push({key:this.inputs[u],value:a[u]});let i=new qi(s),o=Yd(this.outputs,i);for(let u=0;u<this.lossFunctions.length;++u){let l=this.lossFunctions[u],d=Nt(l(r[u],o[u]));u===0?n=d:n=ie(n,d),t.push(n)}for(let u=0;u<this.metricsTensors.length;++u){let l=this.metricsTensors[u][0],d=this.metricsTensors[u][1],p=Nt(l(r[d],o[d]));t.push(p)}return t})}async fit(e,t,n={}){return Sre(this,e,t,n)}async fitDataset(e,t){return bre(this,e,t)}async trainOnBatch(e,t){let n=await this.standardizeUserData(e,t),a=n[0],r=n[1],s=this.makeTrainFunction()(a.concat(r)),i=[];for(let o of s){let u=await o.data();i.push(u[0])}return he(s),Fn(i)}getNamedWeights(e){let t=[],n=e!=null&&e.trainableOnly,a=n?this.trainableWeights:this.weights,r=this.getWeights(n);for(let s=0;s<a.length;++s)n&&!a[s].trainable||t.push({name:a[s].originalName,tensor:r[s]});return t}set stopTraining(e){this.stopTraining_=e}get stopTraining(){return this.stopTraining_}get optimizer(){return this.optimizer_}set optimizer(e){this.optimizer_!==e&&(this.optimizer_=e,this.isOptimizerOwned=!1)}dispose(){let e=super.dispose();if(e.refCountAfterDispose===0&&this.optimizer!=null&&this.isOptimizerOwned){let t=Bc().numTensors;this.optimizer_.dispose(),e.numDisposedVariables+=t-Bc().numTensors}return e}getLossIdentifiers(){let e;if(typeof this.loss=="string")e=wr(this.loss);else if(Array.isArray(this.loss)){for(let t of this.loss)if(typeof t!="string")throw new Error("Serialization of non-string loss is not supported.");e=this.loss.map(t=>wr(t))}else{let t=Object.keys(this.loss);e={};let n=this.loss;for(let a of t)if(typeof n[a]=="string")e[a]=wr(n[a]);else throw new Error("Serialization of non-string loss is not supported.")}return e}getMetricIdentifiers(){if(typeof this.metrics=="string"||typeof this.metrics=="function")return[wr(S0(this.metrics))];if(Array.isArray(this.metrics))return this.metrics.map(e=>wr(S0(e)));{let e={};for(let t in this.metrics)e[t]=wr(S0(this.metrics[t]));return e}}getTrainingConfig(){return{loss:this.getLossIdentifiers(),metrics:this.getMetricIdentifiers(),optimizer_config:{class_name:this.optimizer.getClassName(),config:this.optimizer.getConfig()}}}loadTrainingConfig(e){if(e.weighted_metrics!=null)throw new Error("Loading weight_metrics is not supported yet.");if(e.loss_weights!=null)throw new Error("Loading loss_weights is not supported yet.");if(e.sample_weight_mode!=null)throw new Error("Loading sample_weight_mode is not supported yet.");let t=Zd(e.optimizer_config),n=Oa(t),a;if(typeof e.loss=="string")a=Vi(e.loss);else if(Array.isArray(e.loss))a=e.loss.map(s=>Vi(s));else if(e.loss!=null){a={};for(let s in e.loss)a[s]=Vi(e.loss[s])}let r;if(Array.isArray(e.metrics))r=e.metrics.map(s=>Vi(s));else if(e.metrics!=null){r={};for(let s in e.metrics)r[s]=Vi(e.metrics[s])}this.compile({loss:a,metrics:r,optimizer:n})}async save(e,t){if(typeof e=="string"){let i=Cn.getSaveHandlers(e);if(i.length===0)throw new U(`Cannot find any save handlers for URL '${e}'`);if(i.length>1)throw new U(`Found more than one (${i.length}) save handlers for URL '${e}'`);e=i[0]}if(e.save==null)throw new U("LayersModel.save() cannot proceed because the IOHandler provided does not have the `save` attribute defined.");let n=await Cn.encodeWeights(this.getNamedWeights(t)),a=!1,r=null,s={modelTopology:this.toJSON(r,a),format:Rre,generatedBy:`TensorFlow.js tfjs-layers v${Og}`,convertedBy:null};if((t==null?!1:t.includeOptimizer)&&this.optimizer!=null){s.trainingConfig=this.getTrainingConfig();let i="optimizer",{data:o,specs:u}=await Cn.encodeWeights(await this.optimizer.getWeights(),i);n.specs.push(...u),n.data=Cn.concatenateArrayBuffers([n.data,o])}if(this.userDefinedMetadata!=null){let i=!0;Q4(this.userDefinedMetadata,this.name,i),s.userDefinedMetadata=this.userDefinedMetadata}return s.weightData=n.data,s.weightSpecs=n.specs,e.save(s)}setUserDefinedMetadata(e){Q4(e,this.name),this.userDefinedMetadata=e}getUserDefinedMetadata(){return this.userDefinedMetadata}};kr.className="Model";re.registerClass(kr);var c8=class extends kr{};c8.className="Functional";re.registerClass(c8);async function Mre(e,t){"modelTopology"in e||(e={modelTopology:e}),e=e;let n=e.modelTopology;n.model_config!=null&&(n=n.model_config);let a=Zd(n),r=Oa(a,t);if(e.weightsManifest!=null){let s=await Cn.loadWeights(e.weightsManifest,e.pathPrefix,r.weights.map(o=>o.originalName)),i={};for(let o of r.weights)i[o.originalName]=s[o.originalName];r.loadWeights(i),he(s)}return r}async function Fre(e,t){if(t==null&&(t={}),typeof e=="string"){let n=Cn.getLoadHandlers(e,t);if(n.length===0)n.push(Cn.browserHTTPRequest(e,t));else if(n.length>1)throw new U(`Found more than one (${n.length}) load handlers for URL '${e}'`);e=n[0]}return $re(e,void 0,t)}async function $re(e,t,n){if(n==null&&(n={}),e.load==null)throw new U("Cannot proceed with model loading because the IOHandler provided does not have the `load` method implemented.");let a=await e.load(),r=a.modelTopology;r.model_config!=null&&(r=r.model_config);let s=n.strict==null?!0:n.strict,i=a.weightData!=null&&a.weightSpecs!=null&&s,o=Oa(Zd(r),t,i),u=a.trainingConfig;if(u!=null&&o.loadTrainingConfig(u),a.userDefinedMetadata!=null&&o.setUserDefinedMetadata(a.userDefinedMetadata),a.weightData!=null){if(a.weightSpecs==null)throw new U("LayersModel artifacts contains weight data, but not weight specs. Therefore loading of weights cannot proceed.");let{modelWeights:l,optimizerWeights:d}=Dre(a.weightData,a.weightSpecs);o.loadWeights(l,s),o.optimizer!=null&&d.length>0&&await o.optimizer.setWeights(d),he(l),he(d.map(p=>p.tensor))}return o}function Dre(e,t){let n=Cn.decodeWeights(e,t),a={},r=[];return t.forEach(s=>{s.group==="optimizer"?r.push({name:s.name,tensor:n[s.name]}):a[s.name]=n[s.name]}),{modelWeights:a,optimizerWeights:r}}var au=class extends kr{constructor(e){super({inputs:[],outputs:[]});if(e=e||{},this.trainable=!0,this.built=!1,this.name=e.name!=null?e.name:m0("sequential_"),e.layers!=null)for(let t of e.layers)this.add(t)}checkShape(e){if(e.inboundNodes[0].outputTensors[0].shape.some(t=>t<0))throw new U(`Negative dimension size caused by adding layer ${e.name} with input shape [${e.inboundNodes[0].inputTensors[0].shape}]`)}add(e){let t=e instanceof au||e instanceof kr,n;if(t){if(n=e,n.outputs.length!==1)throw new U("All layers in a Sequential model should have a single output tensor. For multi-output layers, use the functional API.");if(n.inputs.length!==1)throw new U("All layers in a Sequential model should have a single input tensor. For multi-input layers, use the functional API.")}if(this.outputs.length===0){if(e.inboundNodes.length===0){if(e.batchInputShape==null)throw new U("The first layer in a Sequential model must get an `inputShape` or `batchInputShape` argument.");let a=L4({batchShape:e.batchInputShape,dtype:e.dtype,name:e.name+"_input"});e.apply(a)}if(t)this.outputs=n.outputs,this.inputs=n.inputs;else{if(e.inboundNodes.length!==1)throw new U(`A layer added to a Sequential model must not already be connected somewhere else. LayersModel received layer ${e.name} which has ${e.inboundNodes.length} pre-existing inbound connections.`);if(e.inboundNodes[0].outputTensors.length!==1)throw new U("All layers in a Sequential model should have a single output tensor. For multi-output layers, use the functional API.");this.checkShape(e),this.outputs=[e.inboundNodes[0].outputTensors[0]],this.inputs=P4(this.outputs[0])}this.inboundNodes=[],new y0({outboundLayer:this,inboundLayers:[],nodeIndices:[],tensorIndices:[],inputTensors:this.inputs,outputTensors:this.outputs,inputMasks:Bi(null,this.inputs.length),outputMasks:[null],inputShapes:this.inputs.map(a=>a.shape),outputShapes:this.outputs[0].shape})}else{let a=e.apply(this.outputs[0]);if(Array.isArray(a))throw new TypeError("All layers in a Sequential model should have a single output tensor. For multi-output layers, use the functional API.");this.checkShape(e),this.outputs=[a],this.inboundNodes[0].outputTensors=this.outputs,this.inboundNodes[0].outputShapes=[this.outputs[0].shape]}this.layers.push(e),this.built=!1}pop(){if(this.layers.length===0)throw new TypeError("There are no layers in the model.");if(this.layers.pop(),this.layers.length===0)this.outputs=[],this.inboundNodes=[],this.outboundNodes=[];else{let e=this.layers.length-1;this.layers[e].outboundNodes=[],this.outputs=[this.layers[e].output],this.inboundNodes[0].outputTensors=this.outputs,this.inboundNodes[0].outputShapes=[this.outputs[0].shape]}}call(e,t){return this.model==null&&this.build(),this.model.call(e,t)}build(e){if(st(e),this.inputs.length===0||this.outputs.length===0)throw new TypeError("Sequential model cannot be built: model is empty. Add some layers first.");this.model=new kr({inputs:this.inputs,outputs:this.outputs[0],name:this.name+"_model"}),this.model.trainable=this.trainable,this.supportsMasking=this.model.supportsMasking,this.inputLayers=this.model.inputLayers,this.inputLayersNodeIndices=this.model.inputLayersNodeIndices,this.inputLayersTensorIndices=this.model.inputLayersTensorIndices,this.outputLayers=this.model.outputLayers,this.outputLayersNodeIndices=this.model.outputLayersNodeIndices,this.outputLayersTensorIndices=this.model.outputLayersTensorIndices,this.nodesByDepth=this.model.nodesByDepth,this.containerNodes=this.model.containerNodes,this.outputNames=this.model.outputNames,this.inputNames=this.model.inputNames,this.built=!0}countParams(){return this.built||this.build(),super.countParams()}summary(e,t,n=console.log){this.built||this.build(),super.summary(e,t,n)}setWeights(e){this.model==null&&this.build(),this.model.setWeights(e)}evaluate(e,t,n={}){if(!this.built)throw new Ma("The model needs to be compiled before being used.");return this.model.evaluate(e,t,n)}async evaluateDataset(e,t){if(!this.built)throw new Ma("The model needs to be compiled before being used.");return this.model.evaluateDataset(e,t)}predict(e,t={}){return this.model==null&&this.build(),this.model.predict(e,t)}predictOnBatch(e){return this.model==null&&this.build(),this.model.predictOnBatch(e)}compile(e){this.build(),this.model.compile(e),this.optimizer_=this.model.optimizer,this.isOptimizerOwned=this.model.isOptimizerOwned,this.loss=this.model.loss,this.metrics=this.model.metrics,this.metricsTensors=this.model.metricsTensors,this.metricsNames=this.model.metricsNames}get optimizer(){return this.model==null?void 0:this.model.optimizer}set optimizer(e){this.model.optimizer=e}async fit(e,t,n={}){if(!this.built)throw new Ma("The model needs to be compiled before being used.");return this.model.fit(e,t,n)}async fitDataset(e,t){if(!this.built)throw new Ma("The model needs to be compiled before being used.");return this.model.fitDataset(e,t)}async trainOnBatch(e,t){return this.model.trainOnBatch(e,t)}static fromConfig(e,t,n={},a=!1){let r,s={};if(t instanceof Array){if(t[0].className==null||t[0].className==="Merge")throw new U("Legacy serialization format not supported yet.");r=t}else k.assert(t.layers!=null,()=>"When the config data for a Sequential model is not an Array, it must be an Object that contains the 'layers' field."),r=t.layers,delete t.layers,s=t;let i=new e(s);if(!(i instanceof au))throw new ze(`Sequential.fromConfig called on non-Sequential input: ${i}`);for(let o of r){let u=Oa(o,void 0,a);a&&u.setFastWeightInitDuringBuild(!0),i.add(u)}return i}set stopTraining(e){if(this.model==null)throw new U("Cannot set the stopTraining property of a sequential model before it is compiled.");this.model.stopTraining=e}get stopTraining(){if(this.model==null)throw new U("Cannot get the stopTraining property of a sequential model before it is compiled.");return this.model.stopTraining}getConfig(){let e=[];for(let t of this.layers){let n={};n.className=t.getClassName(),n.config=t.getConfig(),e.push(n)}return{name:this.name,layers:e}}};au.className="Sequential";re.registerClass(au);function Ore(e){return new kr(e)}function zre(e){return new au(e)}function _re(e,t){return t==null&&(t={}),Fre(e,t)}function h8(e){return L4(e)}function Pre(e,t){wa.registerCallbackConstructor(e,t)}var Dn=class extends re.Serializable{getConfig(){return{}}},f8=class extends Dn{apply(e,t=1){return dae(e,t)}};f8.className="elu";re.registerClass(f8);var m8=class extends Dn{apply(e){return oh(e)}};m8.className="selu";re.registerClass(m8);var A8=class extends Dn{apply(e){return Ka(e)}};A8.className="relu";re.registerClass(A8);var g8=class extends Dn{apply(e){return V(()=>Ml(6,Ka(e)))}};g8.className="relu6";re.registerClass(g8);var y8=class extends Dn{apply(e){return e}};y8.className="linear";re.registerClass(y8);var x8=class extends Dn{apply(e){return En(e)}};x8.className="sigmoid";re.registerClass(x8);var b8=class extends Dn{apply(e){return cae(e)}};b8.className="hardSigmoid";re.registerClass(b8);var v8=class extends Dn{apply(e){return Ci(e)}};v8.className="softplus";re.registerClass(v8);var w8=class extends Dn{apply(e){return pae(e)}};w8.className="softsign";re.registerClass(w8);var k8=class extends Dn{apply(e){return Si(e)}};k8.className="tanh";re.registerClass(k8);var Bg=class extends Dn{apply(e,t=-1){return xd(e,t)}};Bg.className="softmax";re.registerClass(Bg);var I8=class extends Dn{apply(e,t=-1){return eh(e,t)}};I8.className="logSoftmax";re.registerClass(I8);var S8=class extends Dn{apply(e,t=1){return V(()=>En(e.mul(t)).mul(e))}};S8.className="swish";re.registerClass(S8);var N8=class extends Dn{apply(e){return V(()=>B(e,Si(Ci(e))))}};N8.className="mish";re.registerClass(N8);function rs(e){return e.getClassName()}function Vg(e,t={}){return Vd(e,re.SerializationMap.getMap().classNameMap,t,"activation")}function ss(e){if(e==null){let t={};return t.className="linear",t.config={},Vg(t)}if(typeof e=="string"){let t={};return t.className=e,t.config={},Vg(t)}else return e instanceof Dn?e:Vg(e)}function jg(e){if(e!=null&&typeof e!="object")throw new Error(`Argument to L1L2 regularizer's constructor is expected to be an object, but received: ${e}`)}var T8=class extends re.Serializable{},Qd=class extends T8{constructor(e){super();jg(e),this.l1=e==null||e.l1==null?.01:e.l1,this.l2=e==null||e.l2==null?.01:e.l2,this.hasL1=this.l1!==0,this.hasL2=this.l2!==0}apply(e){return V(()=>{let t=$t([1]);return this.hasL1&&(t=ie(t,Se(B(this.l1,Wt(e))))),this.hasL2&&(t=ie(t,Se(B(this.l2,qd(e))))),t.asScalar()})}getConfig(){return{l1:this.l1,l2:this.l2}}static fromConfig(e,t){return new e({l1:t.l1,l2:t.l2})}};Qd.className="L1L2";re.registerClass(Qd);function Lre(e){return jg(e),new Qd({l1:e!=null?e.l1:null,l2:0})}function Wre(e){return jg(e),new Qd({l2:e!=null?e.l2:null,l1:0})}var C8={l1l2:"L1L2"};function dt(e){return ig(e)}function E8(e,t={}){return Vd(e,re.SerializationMap.getMap().classNameMap,t,"regularizer")}function vt(e){if(e==null)return null;if(typeof e=="string"){let t={className:e in C8?C8[e]:e,config:{}};return E8(t)}else return e instanceof T8?e:E8(e)}var Ug=class extends Xe{constructor(e){super(e==null?{}:e);this.supportsMasking=!0,e!=null&&(this.maxValue=e.maxValue)}call(e,t){e=Le(e);let n=Ka(e);return this.maxValue!=null&&(n=Rn(n,0,this.maxValue)),n}computeOutputShape(e){return e}getConfig(){let e={maxValue:this.maxValue},t=super.getConfig();return Object.assign(e,t),e}};Ug.className="ReLU";re.registerClass(Ug);var Hg=class extends Xe{constructor(e){super(e==null?{}:e);this.DEFAULT_ALPHA=.3,e==null&&(e={}),this.alpha=e.alpha==null?this.DEFAULT_ALPHA:e.alpha}call(e,t){let n=Le(e);return pd(n,this.alpha)}computeOutputShape(e){return e}getConfig(){let e={alpha:this.alpha},t=super.getConfig();return Object.assign(e,t),e}};Hg.className="LeakyReLU";re.registerClass(Hg);var Gg=class extends Xe{constructor(e){super(e==null?{}:e);if(this.DEFAULT_ALPHA_INITIALIZER="zeros",e==null&&(e={}),this.supportsMasking=!0,this.alphaInitializer=bt(e.alphaInitializer||this.DEFAULT_ALPHA_INITIALIZER),this.alphaRegularizer=vt(e.alphaRegularizer),this.alphaConstraint=Ut(e.alphaConstraint),e.sharedAxes==null)this.sharedAxes=null;else if(Array.isArray(e.sharedAxes))this.sharedAxes=e.sharedAxes;else if(typeof e.sharedAxes=="number")this.sharedAxes=[e.sharedAxes];else throw new U(`Expected sharedAxes to be a number or an array of numbers, but got ${e.sharedAxes}`)}build(e){e=st(e);let t=e.slice(1);if(this.sharedAxes!=null)for(let a of this.sharedAxes)t[a-1]=1;this.alpha=this.addWeight("alpha",t,"float32",this.alphaInitializer,this.alphaRegularizer,!0,this.alphaConstraint);let n={};if(this.sharedAxes!=null)for(let a=1;a<e.length;++a)n[a]=e[a];this.inputSpec=[new zt({ndim:e.length,axes:n})],this.built=!0}call(e,t){return e=Le(e),Ad(e,this.alpha.read())}getConfig(){let e={alphaInitializer:Tt(this.alphaInitializer),alphaRegularizer:dt(this.alphaRegularizer),alphaConstraint:jt(this.alphaConstraint),sharedAxes:this.sharedAxes},t=super.getConfig();return Object.assign(e,t),e}};Gg.className="PReLU";re.registerClass(Gg);var qg=class extends Xe{constructor(e){super(e==null?{}:e);if(this.DEFAULT_ALPHA=1,e==null&&(e={}),e.alpha!=null&&e.alpha!==this.DEFAULT_ALPHA)throw new ze(`Non-default alpha value (${e.alpha}) is not supported by the ELU layer yet.`);this.alpha=e.alpha==null?this.DEFAULT_ALPHA:e.alpha}call(e,t){let n=Le(e);return Cl(n)}computeOutputShape(e){return e}getConfig(){let e={alpha:this.alpha},t=super.getConfig();return Object.assign(e,t),e}};qg.className="ELU";re.registerClass(qg);var Xg=class extends Xe{constructor(e){super(e==null?{}:e);this.DEFAULT_THETA=1,e==null&&(e={}),this.theta=e.theta==null?this.DEFAULT_THETA:e.theta}call(e,t){let n=Le(e);return n.mul(Hd(n.greater(this.theta),"float32"))}computeOutputShape(e){return e}getConfig(){let e={theta:this.theta},t=super.getConfig();return Object.assign(e,t),e}};Xg.className="ThresholdedReLU";re.registerClass(Xg);var Kg=class extends Xe{constructor(e){super(e==null?{}:e);this.DEFAULT_AXIS=1,e==null&&(e={}),this.softmax=new Bg().apply,this.axis=e.axis==null?this.DEFAULT_AXIS:e.axis}call(e,t){let n=Le(e);return this.softmax(n,this.axis)}computeOutputShape(e){return e}getConfig(){let e={axis:this.axis},t=super.getConfig();return Object.assign(e,t),e}};Kg.className="Softmax";re.registerClass(Kg);function ru(e,t,n){if(typeof e=="number")return Bi(e,t);if(e.length!==t)throw new U(`The ${n} argument must be an integer or tuple of ${t} integers. Received: ${e.length} elements.`);for(let a=0;a<t;++a){let r=e[a];if(!iae(r))throw new U(`The ${n} argument must be an integer or tuple of ${t} integers. Received: ${JSON.stringify(e)} including a non-integer number ${r}`)}return e}function za(e,t,n,a,r=1){if(e==null)return e;let s=t+(t-1)*(r-1),i;return n==="same"?i=e:i=e-s+1,Math.floor((i+a-1)/a)}function nr(e,t,n,a){if(e==null)return null;if(a==="valid")e=e*t+ns([n-t,0]);else if(a==="same")e=e*t;else throw new U(`Unsupport padding mode: ${a}.`);return e}function Zg(e,t){return V(()=>(Ft(t),t==="channelsFirst"?Qe(e,[0,2,3,1]):e))}function R8(e,t){return V(()=>(Ft(t),t==="channelsFirst"?Qe(e,[0,2,3,4,1]):e))}function Bre(e,t,n,a=1,r="valid",s,i=1){return V(()=>{if(s==null&&(s=Ra()),Ft(s),e.shape.length!==3)throw new U(`The input of a conv1dWithBias operation should be 3, but is ${e.shape.length} instead.`);if(t.shape.length!==3)throw new U(`The kernel for a conv1dWithBias operation should be 3, but is ${t.shape.length} instead`);if(n!=null&&n.shape.length!==1)throw new U(`The bias for a conv1dWithBias operation should be 1, but is ${t.shape.length} instead`);if(s==="channelsFirst"&&(e=Qe(e,[0,2,1])),r==="causal")throw new ze("The support for CAUSAL padding mode in conv1dWithBias is not implemented yet.");let o=Gc(e,t,a,r==="same"?"same":"valid","NWC",i);return n!=null&&(o=$a(o,n)),o})}function M8(e,t,n,a=[1,1],r="valid",s,i,o=null){return V(()=>{if(s==null&&(s=Ra()),Ft(s),e.rank!==3&&e.rank!==4)throw new U(`conv2dWithBiasActivation expects input to be of rank 3 or 4, but received ${e.rank}.`);if(t.rank!==3&&t.rank!==4)throw new U(`conv2dWithBiasActivation expects kernel to be of rank 3 or 4, but received ${e.rank}.`);let u=Zg(e,s);if(r==="causal")throw new ze("The support for CAUSAL padding mode in conv1dWithBias is not implemented yet.");return u=Kr.conv2d({x:u,filter:t,strides:a,pad:r==="same"?"same":"valid",dilations:i,dataFormat:"NHWC",bias:n,activation:o}),s==="channelsFirst"&&(u=Qe(u,[0,3,1,2])),u})}function Vre(e,t,n,a=[1,1,1],r="valid",s,i){return V(()=>{if(s==null&&(s=Ra()),Ft(s),e.rank!==4&&e.rank!==5)throw new U(`conv3dWithBias expects input to be of rank 4 or 5, but received ${e.rank}.`);if(t.rank!==4&&t.rank!==5)throw new U(`conv3dWithBias expects kernel to be of rank 4 or 5, but received ${e.rank}.`);let o=R8(e,s);if(r==="causal")throw new ze("The support for CAUSAL padding mode in conv3dWithBias is not implemented yet.");return o=W1(o,t,a,r==="same"?"same":"valid","NDHWC",i),n!=null&&(o=$a(o,n)),s==="channelsFirst"&&(o=Qe(o,[0,4,1,2,3])),o})}var Yg=class extends Xe{constructor(e,t){super(t);if(this.bias=null,this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_BIAS_INITIALIZER="zeros",Yg.verifyArgs(t),this.rank=e,Yt(this.rank,"rank"),this.rank!==1&&this.rank!==2&&this.rank!==3)throw new ze(`Convolution layer for rank other than 1, 2, or 3 (${this.rank}) is not implemented yet.`);if(this.kernelSize=ru(t.kernelSize,e,"kernelSize"),this.strides=ru(t.strides==null?1:t.strides,e,"strides"),this.padding=t.padding==null?"valid":t.padding,ca(this.padding),this.dataFormat=t.dataFormat==null?"channelsLast":t.dataFormat,Ft(this.dataFormat),this.activation=ss(t.activation),this.useBias=t.useBias==null?!0:t.useBias,this.biasInitializer=bt(t.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.biasConstraint=Ut(t.biasConstraint),this.biasRegularizer=vt(t.biasRegularizer),this.activityRegularizer=vt(t.activityRegularizer),this.dilationRate=ru(t.dilationRate==null?1:t.dilationRate,e,"dilationRate"),this.rank===1&&Array.isArray(this.dilationRate)&&this.dilationRate.length!==1)throw new U(`dilationRate must be a number or an array of a single number for 1D convolution, but received ${JSON.stringify(this.dilationRate)}`);if(this.rank===2){if(typeof this.dilationRate=="number")this.dilationRate=[this.dilationRate,this.dilationRate];else if(this.dilationRate.length!==2)throw new U(`dilationRate must be a number or array of two numbers for 2D convolution, but received ${JSON.stringify(this.dilationRate)}`)}else if(this.rank===3){if(typeof this.dilationRate=="number")this.dilationRate=[this.dilationRate,this.dilationRate,this.dilationRate];else if(this.dilationRate.length!==3)throw new U(`dilationRate must be a number or array of three numbers for 3D convolution, but received ${JSON.stringify(this.dilationRate)}`)}}static verifyArgs(e){if(Qa("kernelSize"in e,"required key 'kernelSize' not in config"),typeof e.kernelSize!="number"&&!lg(e.kernelSize,"number",1,3))throw new U(`BaseConv expects config.kernelSize to be number or number[] with length 1, 2, or 3, but received ${JSON.stringify(e.kernelSize)}.`)}getConfig(){let e={kernelSize:this.kernelSize,strides:this.strides,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,activation:rs(this.activation),useBias:this.useBias,biasInitializer:Tt(this.biasInitializer),biasRegularizer:dt(this.biasRegularizer),activityRegularizer:dt(this.activityRegularizer),biasConstraint:jt(this.biasConstraint)},t=super.getConfig();return Object.assign(e,t),e}},ep=class extends Yg{constructor(e,t){super(e,t);this.kernel=null,ep.verifyArgs(t),this.filters=t.filters,Yt(this.filters,"filters"),this.kernelInitializer=bt(t.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.kernelConstraint=Ut(t.kernelConstraint),this.kernelRegularizer=vt(t.kernelRegularizer)}build(e){e=st(e);let t=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[t]==null)throw new U(`The channel dimension of the input should be defined. Found ${e[t]}`);let n=e[t],a=this.kernelSize.concat([n,this.filters]);this.kernel=this.addWeight("kernel",a,null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.filters],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint)),this.inputSpec=[{ndim:this.rank+2,axes:{[t]:n}}],this.built=!0}call(e,t){return V(()=>{e=Le(e);let n,a=this.bias==null?null:this.bias.read(),r=b4(this.activation.getClassName());if(r!=null&&this.rank===2)n=M8(e,this.kernel.read(),a,this.strides,this.padding,this.dataFormat,this.dilationRate,r);else{if(this.rank===1)n=Bre(e,this.kernel.read(),a,this.strides[0],this.padding,this.dataFormat,this.dilationRate[0]);else if(this.rank===2)n=M8(e,this.kernel.read(),a,this.strides,this.padding,this.dataFormat,this.dilationRate);else if(this.rank===3)n=Vre(e,this.kernel.read(),a,this.strides,this.padding,this.dataFormat,this.dilationRate);else throw new ze("convolutions greater than 3D are not implemented yet.");this.activation!=null&&(n=this.activation.apply(n))}return n})}computeOutputShape(e){e=st(e);let t=[],n=this.dataFormat==="channelsLast"?e.slice(1,e.length-1):e.slice(2);for(let r=0;r<n.length;++r){let s=za(n[r],this.kernelSize[r],this.padding,this.strides[r],typeof this.dilationRate=="number"?this.dilationRate:this.dilationRate[r]);t.push(s)}let a=[e[0]];return this.dataFormat==="channelsLast"?(a=a.concat(t),a.push(this.filters)):(a.push(this.filters),a=a.concat(t)),a}getConfig(){let e={filters:this.filters,kernelInitializer:Tt(this.kernelInitializer),kernelRegularizer:dt(this.kernelRegularizer),kernelConstraint:jt(this.kernelConstraint)},t=super.getConfig();return Object.assign(e,t),e}static verifyArgs(e){if(!("filters"in e)||typeof e.filters!="number"||e.filters<1)throw new U(`Convolution layer expected config.filters to be a 'number' > 0 but got ${JSON.stringify(e.filters)}`)}},tp=class extends ep{constructor(e){super(2,e);tp.verifyArgs(e)}getConfig(){let e=super.getConfig();return delete e.rank,e}static verifyArgs(e){if(typeof e.kernelSize!="number"&&!lg(e.kernelSize,"number",1,2))throw new U(`Conv2D expects config.kernelSize to be number or number[] with length 1 or 2, but received ${JSON.stringify(e.kernelSize)}.`)}};tp.className="Conv2D";re.registerClass(tp);var np=class extends ep{constructor(e){super(3,e);np.verifyArgs(e)}getConfig(){let e=super.getConfig();return delete e.rank,e}static verifyArgs(e){if(typeof e.kernelSize!="number"&&!(Array.isArray(e.kernelSize)&&(e.kernelSize.length===1||e.kernelSize.length===3)))throw new U(`Conv3D expects config.kernelSize to be number or [number, number, number], but received ${JSON.stringify(e.kernelSize)}.`)}};np.className="Conv3D";re.registerClass(np);var Jg=class extends tp{constructor(e){super(e);if(this.inputSpec=[new zt({ndim:4})],this.padding!=="same"&&this.padding!=="valid")throw new U(`Conv2DTranspose currently supports only padding modes 'same' and 'valid', but received padding mode ${this.padding}`)}build(e){if(e=st(e),e.length!==4)throw new U("Input should have rank 4; Received input shape: "+JSON.stringify(e));let t=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[t]==null)throw new U("The channel dimension of the inputs should be defined. Found `None`.");let n=e[t],a=this.kernelSize.concat([this.filters,n]);this.kernel=this.addWeight("kernel",a,"float32",this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.filters],"float32",this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint)),this.inputSpec=[new zt({ndim:4,axes:{[t]:n}})],this.built=!0}call(e,t){return V(()=>{let n=Le(e);if(n.shape.length!==4)throw new U(`Conv2DTranspose.call() expects input tensor to be rank-4, but received a tensor of rank-${n.shape.length}`);let a=n.shape,r=a[0],s,i;this.dataFormat==="channelsFirst"?(s=2,i=3):(s=1,i=2);let o=a[s],u=a[i],l=this.kernelSize[0],d=this.kernelSize[1],p=this.strides[0],c=this.strides[1],h=nr(o,p,l,this.padding),m=nr(u,c,d,this.padding),f=[r,h,m,this.filters];this.dataFormat!=="channelsLast"&&(n=Qe(n,[0,2,3,1]));let A=qc(n,this.kernel.read(),f,this.strides,this.padding);return this.dataFormat!=="channelsLast"&&(A=Qe(A,[0,3,1,2])),this.bias!=null&&(A=$a(A,this.bias.read(),this.dataFormat)),this.activation!=null&&(A=this.activation.apply(A)),A})}computeOutputShape(e){e=st(e);let t=e.slice(),n,a,r;this.dataFormat==="channelsFirst"?(n=1,a=2,r=3):(n=3,a=1,r=2);let s=this.kernelSize[0],i=this.kernelSize[1],o=this.strides[0],u=this.strides[1];return t[n]=this.filters,t[a]=nr(t[a],o,s,this.padding),t[r]=nr(t[r],u,i,this.padding),t}getConfig(){let e=super.getConfig();return delete e.dilationRate,e}};Jg.className="Conv2DTranspose";re.registerClass(Jg);var Qg=class extends np{constructor(e){super(e);if(this.inputSpec=[new zt({ndim:5})],this.padding!=="same"&&this.padding!=="valid")throw new U(`Conv3DTranspose currently supports only padding modes 'same' and 'valid', but received padding mode ${this.padding}`)}build(e){if(e=st(e),e.length!==5)throw new U("Input should have rank 5; Received input shape: "+JSON.stringify(e));let t=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[t]==null)throw new U("The channel dimension of the inputs should be defined. Found `None`.");let n=e[t],a=this.kernelSize.concat([this.filters,n]);this.kernel=this.addWeight("kernel",a,"float32",this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.filters],"float32",this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint)),this.inputSpec=[new zt({ndim:5,axes:{[t]:n}})],this.built=!0}call(e,t){return V(()=>{let n=Le(e);if(n.shape.length!==5)throw new U(`Conv3DTranspose.call() expects input tensor to be rank-4, but received a tensor of rank-${n.shape.length}`);let a=n.shape,r=a[0],s,i,o;this.dataFormat==="channelsFirst"?(o=2,s=3,i=4):(o=1,s=2,i=3);let u=a[o],l=a[s],d=a[i],p=this.kernelSize[0],c=this.kernelSize[1],h=this.kernelSize[2],m=this.strides[0],f=this.strides[1],A=this.strides[2],g=nr(u,m,p,this.padding),y=nr(l,f,c,this.padding),x=nr(d,A,h,this.padding),v=[r,g,y,x,this.filters];this.dataFormat!=="channelsLast"&&(n=Qe(n,[0,2,3,4,1]));let b=w3(n,this.kernel.read(),v,this.strides,this.padding);return this.dataFormat!=="channelsLast"&&(b=Qe(b,[0,4,1,2,3])),this.bias!==null&&(b=$a(b,this.bias.read(),this.dataFormat)),this.activation!==null&&(b=this.activation.apply(b)),b})}computeOutputShape(e){e=st(e);let t=e.slice(),n,a,r,s;this.dataFormat==="channelsFirst"?(n=1,a=2,r=3,s=4):(n=4,a=1,r=2,s=3);let i=this.kernelSize[0],o=this.kernelSize[1],u=this.kernelSize[2],l=this.strides[0],d=this.strides[1],p=this.strides[2];return t[n]=this.filters,t[a]=nr(t[a],l,i,this.padding),t[r]=nr(t[r],d,o,this.padding),t[s]=nr(t[s],p,u,this.padding),t}getConfig(){let e=super.getConfig();return delete e.dilationRate,e}};Qg.className="Conv3DTranspose";re.registerClass(Qg);var F8=class extends ep{constructor(e,t){super(e,t);if(this.DEFAULT_DEPTHWISE_INITIALIZER="glorotUniform",this.DEFAULT_POINTWISE_INITIALIZER="glorotUniform",this.depthwiseKernel=null,this.pointwiseKernel=null,t.filters==null)throw new U("The `filters` configuration field is required by SeparableConv, but is unspecified.");if(t.kernelInitializer!=null||t.kernelRegularizer!=null||t.kernelConstraint!=null)throw new U("Fields kernelInitializer, kernelRegularizer and kernelConstraint are invalid for SeparableConv2D. Use depthwiseInitializer, depthwiseRegularizer, depthwiseConstraint, pointwiseInitializer, pointwiseRegularizer and pointwiseConstraint instead.");if(t.padding!=null&&t.padding!=="same"&&t.padding!=="valid")throw new U(`SeparableConv${this.rank}D supports only padding modes: 'same' and 'valid', but received ${JSON.stringify(t.padding)}`);this.depthMultiplier=t.depthMultiplier==null?1:t.depthMultiplier,this.depthwiseInitializer=bt(t.depthwiseInitializer||this.DEFAULT_DEPTHWISE_INITIALIZER),this.depthwiseRegularizer=vt(t.depthwiseRegularizer),this.depthwiseConstraint=Ut(t.depthwiseConstraint),this.pointwiseInitializer=bt(t.depthwiseInitializer||this.DEFAULT_POINTWISE_INITIALIZER),this.pointwiseRegularizer=vt(t.pointwiseRegularizer),this.pointwiseConstraint=Ut(t.pointwiseConstraint)}build(e){if(e=st(e),e.length<this.rank+2)throw new U(`Inputs to SeparableConv${this.rank}D should have rank ${this.rank+2}, but received input shape: ${JSON.stringify(e)}`);let t=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[t]==null||e[t]<0)throw new U(`The channel dimension of the inputs should be defined, but found ${JSON.stringify(e[t])}`);let n=e[t],a=this.kernelSize.concat([n,this.depthMultiplier]),r=[];for(let i=0;i<this.rank;++i)r.push(1);r.push(n*this.depthMultiplier,this.filters);let s=!0;this.depthwiseKernel=this.addWeight("depthwise_kernel",a,"float32",this.depthwiseInitializer,this.depthwiseRegularizer,s,this.depthwiseConstraint),this.pointwiseKernel=this.addWeight("pointwise_kernel",r,"float32",this.pointwiseInitializer,this.pointwiseRegularizer,s,this.pointwiseConstraint),this.useBias?this.bias=this.addWeight("bias",[this.filters],"float32",this.biasInitializer,this.biasRegularizer,s,this.biasConstraint):this.bias=null,this.inputSpec=[new zt({ndim:this.rank+2,axes:{[t]:n}})],this.built=!0}call(e,t){return V(()=>{e=Le(e);let n;if(this.rank===1)throw new ze("1D separable convolution is not implemented yet.");return this.rank===2&&(this.dataFormat==="channelsFirst"&&(e=Qe(e,[0,2,3,1])),n=rA(e,this.depthwiseKernel.read(),this.pointwiseKernel.read(),this.strides,this.padding,this.dilationRate,"NHWC")),this.useBias&&(n=$a(n,this.bias.read(),this.dataFormat)),this.activation!=null&&(n=this.activation.apply(n)),this.dataFormat==="channelsFirst"&&(n=Qe(n,[0,3,1,2])),n})}getConfig(){let e=super.getConfig();return delete e.rank,delete e.kernelInitializer,delete e.kernelRegularizer,delete e.kernelConstraint,e.depthwiseInitializer=Tt(this.depthwiseInitializer),e.pointwiseInitializer=Tt(this.pointwiseInitializer),e.depthwiseRegularizer=dt(this.depthwiseRegularizer),e.pointwiseRegularizer=dt(this.pointwiseRegularizer),e.depthwiseConstraint=jt(this.depthwiseConstraint),e.pointwiseConstraint=jt(this.pointwiseConstraint),e}};F8.className="SeparableConv";var ey=class extends F8{constructor(e){super(2,e)}};ey.className="SeparableConv2D";re.registerClass(ey);var T0=class extends ep{constructor(e){super(1,e);T0.verifyArgs(e),this.inputSpec=[{ndim:3}]}getConfig(){let e=super.getConfig();return delete e.rank,delete e.dataFormat,e}static verifyArgs(e){if(typeof e.kernelSize!="number"&&!lg(e.kernelSize,"number",1,1))throw new U(`Conv1D expects config.kernelSize to be number or number[] with length 1, but received ${JSON.stringify(e.kernelSize)}.`)}};T0.className="Conv1D";re.registerClass(T0);var ty=class extends Xe{constructor(e){super(e);typeof e.cropping=="number"?this.cropping=[[e.cropping,e.cropping],[e.cropping,e.cropping]]:typeof e.cropping[0]=="number"?this.cropping=[[e.cropping[0],e.cropping[0]],[e.cropping[1],e.cropping[1]]]:this.cropping=e.cropping,this.dataFormat=e.dataFormat===void 0?"channelsLast":e.dataFormat,this.inputSpec=[{ndim:4}]}computeOutputShape(e){return this.dataFormat==="channelsFirst"?[e[0],e[1],e[2]-this.cropping[0][0]-this.cropping[0][1],e[3]-this.cropping[1][0]-this.cropping[1][1]]:[e[0],e[1]-this.cropping[0][0]-this.cropping[0][1],e[2]-this.cropping[1][0]-this.cropping[1][1],e[3]]}call(e,t){return V(()=>{if(e=Le(e),this.dataFormat==="channelsLast"){let n=s0(e,this.cropping[0][0],e.shape[1]-this.cropping[0][0]-this.cropping[0][1],2);return s0(n,this.cropping[1][0],e.shape[2]-this.cropping[1][1]-this.cropping[1][0],3)}else{let n=s0(e,this.cropping[0][0],e.shape[2]-this.cropping[0][0]-this.cropping[0][1],3);return s0(n,this.cropping[1][0],e.shape[3]-this.cropping[1][1]-this.cropping[1][0],4)}})}getConfig(){let e={cropping:this.cropping,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}};ty.className="Cropping2D";re.registerClass(ty);var ny=class extends Xe{constructor(e){super(e);this.DEFAULT_SIZE=[2,2],this.inputSpec=[{ndim:4}],this.size=e.size==null?this.DEFAULT_SIZE:e.size,this.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,Ft(this.dataFormat),this.interpolation=e.interpolation==null?"nearest":e.interpolation,aae(this.interpolation)}computeOutputShape(e){if(this.dataFormat==="channelsFirst"){let t=e[2]==null?null:this.size[0]*e[2],n=e[3]==null?null:this.size[1]*e[3];return[e[0],e[1],t,n]}else{let t=e[1]==null?null:this.size[0]*e[1],n=e[2]==null?null:this.size[1]*e[2];return[e[0],t,n,e[3]]}}call(e,t){return V(()=>{let n=Le(e),a=n.shape;if(this.dataFormat==="channelsFirst"){n=Qe(n,[0,2,3,1]);let r=this.size[0]*a[2],s=this.size[1]*a[3],i=this.interpolation==="nearest"?n.resizeNearestNeighbor([r,s]):n.resizeBilinear([r,s]);return Qe(i,[0,3,1,2])}else{let r=this.size[0]*a[1],s=this.size[1]*a[2];return this.interpolation==="nearest"?n.resizeNearestNeighbor([r,s]):n.resizeBilinear([r,s])}})}getConfig(){let e={size:this.size,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}};ny.className="UpSampling2D";re.registerClass(ny);function jre(e,t,n=[1,1],a="valid",r,s){return V(()=>{r==null&&(r=Ra()),Ft(r);let i=Zg(e,r);if(e.rank!==4)throw new U(`Input for depthwiseConv2d is required to be 4-D, but is instead ${e.rank}-D`);if(t.rank!==4)throw new U(`depthwiseKernel is required to be 4-D, but is instead ${t.rank}-D`);return i=Tl(i,t,n,a==="same"?"same":"valid","NHWC",s),r==="channelsFirst"&&(i=Qe(i,[0,3,1,2])),i})}var ay=class extends Yg{constructor(e){super(2,e);this.depthwiseKernel=null,this.depthMultiplier=e.depthMultiplier==null?1:e.depthMultiplier,this.depthwiseInitializer=bt(e.depthwiseInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.depthwiseConstraint=Ut(e.depthwiseConstraint),this.depthwiseRegularizer=vt(e.depthwiseRegularizer)}build(e){if(e=st(e),e.length<4)throw new U(`Inputs to DepthwiseConv2D should have rank 4. Received input shape: ${JSON.stringify(e)}.`);let t=this.dataFormat==="channelsFirst"?1:3;if(e[t]==null||e[t]<0)throw new U(`The channel dimension of the inputs to DepthwiseConv2D should be defined, but is not (${e[t]}).`);let n=e[t],a=[this.kernelSize[0],this.kernelSize[1],n,this.depthMultiplier];this.depthwiseKernel=this.addWeight("depthwise_kernel",a,null,this.depthwiseInitializer,this.depthwiseRegularizer,!0,this.depthwiseConstraint),this.useBias?this.bias=this.addWeight("bias",[n*this.depthMultiplier],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return V(()=>{e=Le(e);let n=jre(e,this.depthwiseKernel.read(),this.strides,this.padding,this.dataFormat,null);return this.useBias&&(n=$a(n,this.bias.read(),this.dataFormat)),this.activation!=null&&(n=this.activation.apply(n)),n})}computeOutputShape(e){e=st(e);let t=this.dataFormat==="channelsFirst"?e[2]:e[1],n=this.dataFormat==="channelsFirst"?e[3]:e[2],a=this.dataFormat==="channelsFirst"?e[1]*this.depthMultiplier:e[3]*this.depthMultiplier,r=za(t,this.kernelSize[0],this.padding,this.strides[0]),s=za(n,this.kernelSize[1],this.padding,this.strides[1]);return this.dataFormat==="channelsFirst"?[e[0],a,r,s]:[e[0],r,s,a]}getConfig(){let e=super.getConfig();return e.depthMultiplier=this.depthMultiplier,e.depthwiseInitializer=Tt(this.depthwiseInitializer),e.depthwiseRegularizer=dt(this.depthwiseRegularizer),e.depthwiseConstraint=jt(this.depthwiseRegularizer),e}};ay.className="DepthwiseConv2D";re.registerClass(ay);function $8(e,t,n,a){if(Array.isArray(e)){if(t!=null||n!=null)throw new U("When inputs is an array, neither initialState or constants should be provided");a!=null&&(n=e.slice(e.length-a,e.length),e=e.slice(0,e.length-a)),e.length>1&&(t=e.slice(1,e.length)),e=e[0]}function r(s){return s==null||Array.isArray(s)?s:[s]}return t=r(t),n=r(n),{inputs:e,initialState:t,constants:n}}function D8(e,t,n,a=!1,r,s,i=!1,o=!1){return V(()=>{let u=t.shape.length;if(u<3)throw new U(`Input should be at least 3D, but is ${u}D.`);let l=[1,0].concat(Fa(2,u));if(t=Qe(t,l),s!=null)throw new ze("The rnn() functoin of the deeplearn.js backend does not support constants yet.");i&&console.warn("Backend rnn(): the unroll = true option is not applicable to the imperative deeplearn.js backend."),r!=null&&(r=r.asType("bool").asType("float32"),r.rank===u-1&&(r=fn(r,-1)),r=Qe(r,l)),a&&(t=Un(t,0),r!=null&&(r=Un(r,0)));let d=[],p,c=n,h=t.shape[0],m=Gn(t),f;r!=null&&(f=Gn(r));for(let g=0;g<h;++g){let y=m[g],x=V(()=>e(y,c));if(r==null)p=x[0],c=x[1];else{let v=V(()=>{let b=f[g],w=jn(b).sub(b),N=x[0].mul(b).add(c[0].mul(w)),C=c.map((E,_)=>x[1][_].mul(b).add(E.mul(w)));return{output:N,newStates:C}});p=v.output,c=v.newStates}o&&d.push(p)}let A;return o&&(A=mn(d,1)),[p,A,c]})}var ar=class extends Xe{constructor(e){super(e);let t;if(e.cell==null)throw new U("cell property is missing for the constructor of RNN.");if(Array.isArray(e.cell)?t=new R0({cells:e.cell}):t=e.cell,t.stateSize==null)throw new U("The RNN cell should have an attribute `stateSize` (tuple of integers, one integer per RNN state).");this.cell=t,this.returnSequences=e.returnSequences==null?!1:e.returnSequences,this.returnState=e.returnState==null?!1:e.returnState,this.goBackwards=e.goBackwards==null?!1:e.goBackwards,this._stateful=e.stateful==null?!1:e.stateful,this.unroll=e.unroll==null?!1:e.unroll,this.supportsMasking=!0,this.inputSpec=[new zt({ndim:3})],this.stateSpec=null,this.states_=null,this.numConstants=null,this.keptStates=[]}getStates(){if(this.states_==null){let e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1;return Fa(0,e).map(t=>null)}else return this.states_}setStates(e){this.states_=e}computeOutputShape(e){Sg(e)&&(e=e[0]),e=e;let t=this.cell.stateSize;Array.isArray(t)||(t=[t]);let n=t[0],a;if(this.returnSequences?a=[e[0],e[1],n]:a=[e[0],n],this.returnState){let r=[];for(let s of t)r.push([e[0],s]);return[a].concat(r)}else return a}computeMask(e,t){return V(()=>{Array.isArray(t)&&(t=t[0]);let n=this.returnSequences?t:null;if(this.returnState){let a=this.states.map(r=>null);return[n].concat(a)}else return n})}get states(){if(this.states_==null){let e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1,t=[];for(let n=0;n<e;++n)t.push(null);return t}else return this.states_}set states(e){this.states_=e}build(e){let t=null;if(this.numConstants!=null)throw new ze("Constants support is not implemented in RNN yet.");Sg(e)&&(e=e[0]),e=e;let n=this.stateful?e[0]:null,a=e.slice(2);this.inputSpec[0]=new zt({shape:[n,null,...a]});let r=[e[0]].concat(e.slice(2));if(t!=null)throw new ze("Constants support is not implemented in RNN yet.");this.cell.build(r);let s;if(Array.isArray(this.cell.stateSize)?s=this.cell.stateSize:s=[this.cell.stateSize],this.stateSpec!=null){if(!k.arraysEqual(this.stateSpec.map(i=>i.shape[i.shape.length-1]),s))throw new U(`An initialState was passed that is not compatible with cell.stateSize. Received stateSpec=${this.stateSpec}; However cell.stateSize is ${this.cell.stateSize}`)}else this.stateSpec=s.map(i=>new zt({shape:[null,i]}));this.stateful&&this.resetStates()}resetStates(e,t=!1){V(()=>{if(!this.stateful)throw new vr("Cannot call resetStates() on an RNN Layer that is not stateful.");let n=this.inputSpec[0].shape[0];if(n==null)throw new U("If an RNN is stateful, it needs to know its batch size. Specify the batch size of your input tensors: \n- If using a Sequential model, specify the batch size by passing a `batchInputShape` option to your first layer.\n- If using the functional API, specify the batch size by passing a `batchShape` option to your Input layer.");if(this.states_==null)Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(a=>$t([n,a])):this.states_=[$t([n,this.cell.stateSize])];else if(e==null)he(this.states_),this.keptStates!=null&&(he(this.keptStates),this.keptStates=[]),Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(a=>$t([n,a])):this.states_[0]=$t([n,this.cell.stateSize]);else{if(Array.isArray(e)||(e=[e]),e.length!==this.states_.length)throw new U(`Layer ${this.name} expects ${this.states_.length} state(s), but it received ${e.length} state value(s). Input received: ${e}`);t===!0?this.keptStates.push(this.states_.slice()):he(this.states_);for(let a=0;a<this.states_.length;++a){let r=e[a],s=Array.isArray(this.cell.stateSize)?this.cell.stateSize[a]:this.cell.stateSize,i=[n,s];if(!k.arraysEqual(r.shape,i))throw new U(`State ${a} is incompatible with layer ${this.name}: expected shape=${i}, received shape=${r.shape}`);this.states_[a]=r}}this.states_=this.states_.map(a=>Xt(a.clone()))})}apply(e,t){let n=t==null?null:t.initialState,a=t==null?null:t.constants;t==null&&(t={});let r=$8(e,n,a,this.numConstants);e=r.inputs,n=r.initialState,a=r.constants;let s=[],i=[];if(n!=null){t.initialState=n,s=s.concat(n),this.stateSpec=[];for(let o of n)this.stateSpec.push(new zt({shape:o.shape}));i=i.concat(this.stateSpec)}if(a!=null&&(t.constants=a,s=s.concat(a),this.numConstants=a.length),s[0]instanceof Da){let o=[e].concat(s),u=this.inputSpec.concat(i),l=this.inputSpec;this.inputSpec=u;let d=super.apply(o,t);return this.inputSpec=l,d}else return super.apply(e,t)}call(e,t){return V(()=>{let n=t==null?null:t.mask,a=t==null?null:t.training,r=t==null?null:t.initialState;e=Le(e),r==null&&(this.stateful?r=this.states_:r=this.getInitialState(e));let s=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1;if(r.length!==s)throw new U(`RNN Layer has ${s} state(s) but was passed ${r.length} initial state(s).`);this.unroll&&console.warn("Ignoring unroll = true for RNN layer, due to imperative backend.");let i={training:a},o=D8((c,h)=>{let m=this.cell.call([c].concat(h),i);return[m[0],m.slice(1)]},e,r,this.goBackwards,n,null,this.unroll,this.returnSequences),u=o[0],l=o[1],d=o[2];this.stateful&&this.resetStates(d,a);let p=this.returnSequences?l:u;return this.returnState?[p].concat(d):p})}getInitialState(e){return V(()=>{let t=$t(e.shape);return t=Se(t,[1,2]),t=Gd(t),Array.isArray(this.cell.stateSize)?this.cell.stateSize.map(n=>n>1?Ag(t,[1,n]):t):this.cell.stateSize>1?[Ag(t,[1,this.cell.stateSize])]:[t]})}get trainableWeights(){return this.trainable?this.cell.trainableWeights:[]}get nonTrainableWeights(){return this.trainable?this.cell.nonTrainableWeights:this.cell.weights}setFastWeightInitDuringBuild(e){super.setFastWeightInitDuringBuild(e),this.cell!=null&&this.cell.setFastWeightInitDuringBuild(e)}getConfig(){let e=super.getConfig(),t={returnSequences:this.returnSequences,returnState:this.returnState,goBackwards:this.goBackwards,stateful:this.stateful,unroll:this.unroll};this.numConstants!=null&&(t.numConstants=this.numConstants);let n=this.cell.getConfig();return this.getClassName()===ar.className&&(t.cell={className:this.cell.getClassName(),config:n}),Object.assign({},n,e,t)}static fromConfig(e,t,n={}){let a=t.cell,r=Oa(a,n);return new e(Object.assign(t,{cell:r}))}};ar.className="RNN";re.registerClass(ar);var ap=class extends Xe{},C0=class extends ap{constructor(e){super(e);this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",this.units=e.units,Yt(this.units,"units"),this.activation=ss(e.activation==null?this.DEFAULT_ACTIVATION:e.activation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=bt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=bt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=bt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelRegularizer=vt(e.kernelRegularizer),this.recurrentRegularizer=vt(e.recurrentRegularizer),this.biasRegularizer=vt(e.biasRegularizer),this.kernelConstraint=Ut(e.kernelConstraint),this.recurrentConstraint=Ut(e.recurrentConstraint),this.biasConstraint=Ut(e.biasConstraint),this.dropout=Ql([1,ns([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=Ql([1,ns([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.stateSize=this.units,this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){e=st(e),this.kernel=this.addWeight("kernel",[e[e.length-1],this.units],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias?this.bias=this.addWeight("bias",[this.units],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return V(()=>{if(e=e,e.length!==2)throw new U(`SimpleRNNCell expects 2 input Tensors, got ${e.length}.`);let n=e[1];e=e[0];let a=t.training==null?!1:t.training;0<this.dropout&&this.dropout<1&&this.dropoutMask==null&&(this.dropoutMask=is({ones:()=>jn(e),rate:this.dropout,training:a})),0<this.recurrentDropout&&this.recurrentDropout<1&&this.recurrentDropoutMask==null&&(this.recurrentDropoutMask=is({ones:()=>jn(n),rate:this.recurrentDropout,training:a}));let r,s=this.dropoutMask,i=this.recurrentDropoutMask;s!=null?r=er(B(e,s),this.kernel.read()):r=er(e,this.kernel.read()),this.bias!=null&&(r=$a(r,this.bias.read())),i!=null&&(n=B(n,i));let o=ie(r,er(n,this.recurrentKernel.read()));return this.activation!=null&&(o=this.activation.apply(o)),[o,o]})}getConfig(){let e=super.getConfig(),t={units:this.units,activation:rs(this.activation),useBias:this.useBias,kernelInitializer:Tt(this.kernelInitializer),recurrentInitializer:Tt(this.recurrentInitializer),biasInitializer:Tt(this.biasInitializer),kernelRegularizer:dt(this.kernelRegularizer),recurrentRegularizer:dt(this.recurrentRegularizer),biasRegularizer:dt(this.biasRegularizer),activityRegularizer:dt(this.activityRegularizer),kernelConstraint:jt(this.kernelConstraint),recurrentConstraint:jt(this.recurrentConstraint),biasConstraint:jt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout};return Object.assign({},e,t)}};C0.className="SimpleRNNCell";re.registerClass(C0);var ry=class extends ar{constructor(e){e.cell=new C0(e),super(e)}call(e,t){return V(()=>{this.cell.dropoutMask!=null&&(he(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(he(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,a=t==null?null:t.training,r=t==null?null:t.initialState;return super.call(e,{mask:n,training:a,initialState:r})})}static fromConfig(e,t){return new e(t)}};ry.className="SimpleRNN";re.registerClass(ry);var E0=class extends ap{constructor(e){super(e);if(this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",e.resetAfter)throw new U("GRUCell does not support reset_after parameter set to true.");this.units=e.units,Yt(this.units,"units"),this.activation=ss(e.activation===void 0?this.DEFAULT_ACTIVATION:e.activation),this.recurrentActivation=ss(e.recurrentActivation===void 0?this.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=bt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=bt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=bt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelRegularizer=vt(e.kernelRegularizer),this.recurrentRegularizer=vt(e.recurrentRegularizer),this.biasRegularizer=vt(e.biasRegularizer),this.kernelConstraint=Ut(e.kernelConstraint),this.recurrentConstraint=Ut(e.recurrentConstraint),this.biasConstraint=Ut(e.biasConstraint),this.dropout=Ql([1,ns([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=Ql([1,ns([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.implementation=e.implementation,this.stateSize=this.units,this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){e=st(e);let t=e[e.length-1];this.kernel=this.addWeight("kernel",[t,this.units*3],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units*3],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias?this.bias=this.addWeight("bias",[this.units*3],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0}call(e,t){return V(()=>{if(e=e,e.length!==2)throw new U(`GRUCell expects 2 input Tensors (inputs, h, c), got ${e.length}.`);let n=t.training==null?!1:t.training,a=e[1];e=e[0],0<this.dropout&&this.dropout<1&&this.dropoutMask==null&&(this.dropoutMask=is({ones:()=>jn(e),rate:this.dropout,training:n,count:3})),0<this.recurrentDropout&&this.recurrentDropout<1&&this.recurrentDropoutMask==null&&(this.recurrentDropoutMask=is({ones:()=>jn(a),rate:this.recurrentDropout,training:n,count:3}));let r=this.dropoutMask,s=this.recurrentDropoutMask,i,o,u;0<this.dropout&&this.dropout<1&&(e=B(e,r[0]));let l=er(e,this.kernel.read());this.useBias&&(l=$a(l,this.bias.read())),0<this.recurrentDropout&&this.recurrentDropout<1&&(a=B(a,s[0]));let d=this.recurrentKernel.read(),[p,c]=Kt(d,[2*this.units,this.units],d.rank-1),h=er(a,p),[m,f,A]=Kt(l,3,l.rank-1),[g,y]=Kt(h,2,h.rank-1);i=this.recurrentActivation.apply(ie(m,g)),o=this.recurrentActivation.apply(ie(f,y));let x=er(B(o,a),c);u=this.activation.apply(ie(A,x));let v=ie(B(i,a),B(ie(1,St(i)),u));return[v,v]})}getConfig(){let e=super.getConfig(),t={units:this.units,activation:rs(this.activation),recurrentActivation:rs(this.recurrentActivation),useBias:this.useBias,kernelInitializer:Tt(this.kernelInitializer),recurrentInitializer:Tt(this.recurrentInitializer),biasInitializer:Tt(this.biasInitializer),kernelRegularizer:dt(this.kernelRegularizer),recurrentRegularizer:dt(this.recurrentRegularizer),biasRegularizer:dt(this.biasRegularizer),activityRegularizer:dt(this.activityRegularizer),kernelConstraint:jt(this.kernelConstraint),recurrentConstraint:jt(this.recurrentConstraint),biasConstraint:jt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout,implementation:this.implementation,resetAfter:!1};return Object.assign({},e,t)}};E0.className="GRUCell";re.registerClass(E0);var sy=class extends ar{constructor(e){e.implementation===0&&console.warn("`implementation=0` has been deprecated, and now defaults to `implementation=1`. Please update your layer call."),e.cell=new E0(e),super(e)}call(e,t){return V(()=>{this.cell.dropoutMask!=null&&(he(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(he(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,a=t==null?null:t.training,r=t==null?null:t.initialState;return super.call(e,{mask:n,training:a,initialState:r})})}static fromConfig(e,t){return t.implmentation===0&&(t.implementation=1),new e(t)}};sy.className="GRU";re.registerClass(sy);var rp=class extends ap{constructor(e){super(e);this.DEFAULT_ACTIVATION="tanh",this.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_RECURRENT_INITIALIZER="orthogonal",this.DEFAULT_BIAS_INITIALIZER="zeros",this.units=e.units,Yt(this.units,"units"),this.activation=ss(e.activation===void 0?this.DEFAULT_ACTIVATION:e.activation),this.recurrentActivation=ss(e.recurrentActivation===void 0?this.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),this.useBias=e.useBias==null?!0:e.useBias,this.kernelInitializer=bt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.recurrentInitializer=bt(e.recurrentInitializer||this.DEFAULT_RECURRENT_INITIALIZER),this.biasInitializer=bt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.unitForgetBias=e.unitForgetBias,this.kernelRegularizer=vt(e.kernelRegularizer),this.recurrentRegularizer=vt(e.recurrentRegularizer),this.biasRegularizer=vt(e.biasRegularizer),this.kernelConstraint=Ut(e.kernelConstraint),this.recurrentConstraint=Ut(e.recurrentConstraint),this.biasConstraint=Ut(e.biasConstraint),this.dropout=Ql([1,ns([0,e.dropout==null?0:e.dropout])]),this.recurrentDropout=Ql([1,ns([0,e.recurrentDropout==null?0:e.recurrentDropout])]),this.implementation=e.implementation,this.stateSize=[this.units,this.units],this.dropoutMask=null,this.recurrentDropoutMask=null}build(e){var t;e=st(e);let n=e[e.length-1];this.kernel=this.addWeight("kernel",[n,this.units*4],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.recurrentKernel=this.addWeight("recurrent_kernel",[this.units,this.units*4],null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint);let a;if(this.useBias){if(this.unitForgetBias){let r=this.biasInitializer,s=this.units;a=new(t=class extends va{apply(i,o){let u=r.apply([s]),l=new o0().apply([s]),d=r.apply([s*2]);return E4(E4(u,l),d)}},t.className="CustomInit",t)}else a=this.biasInitializer;this.bias=this.addWeight("bias",[this.units*4],null,a,this.biasRegularizer,!0,this.biasConstraint)}else this.bias=null;this.built=!0}call(e,t){return V(()=>{let n=t.training==null?!1:t.training;if(e=e,e.length!==3)throw new U(`LSTMCell expects 3 input Tensors (inputs, h, c), got ${e.length}.`);let a=e[1],r=e[2];e=e[0],0<this.dropout&&this.dropout<1&&this.dropoutMask==null&&(this.dropoutMask=is({ones:()=>jn(e),rate:this.dropout,training:n,count:4})),0<this.recurrentDropout&&this.recurrentDropout<1&&this.recurrentDropoutMask==null&&(this.recurrentDropoutMask=is({ones:()=>jn(a),rate:this.recurrentDropout,training:n,count:4}));let s=this.dropoutMask,i=this.recurrentDropoutMask,o,u,l,d;0<this.dropout&&this.dropout<1&&(e=B(e,s[0]));let p=er(e,this.kernel.read());0<this.recurrentDropout&&this.recurrentDropout<1&&(a=B(a,i[0])),p=ie(p,er(a,this.recurrentKernel.read())),this.useBias&&(p=$a(p,this.bias.read()));let[c,h,m,f]=Kt(p,4,p.rank-1);o=this.recurrentActivation.apply(c),u=this.recurrentActivation.apply(h),l=ie(B(u,r),B(o,this.activation.apply(m))),d=this.recurrentActivation.apply(f);let A=B(d,this.activation.apply(l));return[A,A,l]})}getConfig(){let e=super.getConfig(),t={units:this.units,activation:rs(this.activation),recurrentActivation:rs(this.recurrentActivation),useBias:this.useBias,kernelInitializer:Tt(this.kernelInitializer),recurrentInitializer:Tt(this.recurrentInitializer),biasInitializer:Tt(this.biasInitializer),unitForgetBias:this.unitForgetBias,kernelRegularizer:dt(this.kernelRegularizer),recurrentRegularizer:dt(this.recurrentRegularizer),biasRegularizer:dt(this.biasRegularizer),activityRegularizer:dt(this.activityRegularizer),kernelConstraint:jt(this.kernelConstraint),recurrentConstraint:jt(this.recurrentConstraint),biasConstraint:jt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout,implementation:this.implementation};return Object.assign({},e,t)}};rp.className="LSTMCell";re.registerClass(rp);var iy=class extends ar{constructor(e){e.implementation===0&&console.warn("`implementation=0` has been deprecated, and now defaults to `implementation=1`. Please update your layer call."),e.cell=new rp(e),super(e)}call(e,t){return V(()=>{this.cell.dropoutMask!=null&&(he(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(he(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null);let n=t==null?null:t.mask,a=t==null?null:t.training,r=t==null?null:t.initialState;return super.call(e,{mask:n,training:a,initialState:r})})}static fromConfig(e,t){return t.implmentation===0&&(t.implementation=1),new e(t)}};iy.className="LSTM";re.registerClass(iy);var R0=class extends ap{constructor(e){super(e);this.cells=e.cells}get stateSize(){let e=[];for(let t of this.cells.slice().reverse())Array.isArray(t.stateSize)?e.push(...t.stateSize):e.push(t.stateSize);return e}call(e,t){return V(()=>{e=e;let n=e.slice(1),a=[];for(let i of this.cells.slice().reverse())Array.isArray(i.stateSize)?a.push(n.splice(0,i.stateSize.length)):a.push(n.splice(0,1));a.reverse();let r=[],s;for(let i=0;i<this.cells.length;++i){let o=this.cells[i];n=a[i],i===0?s=[e[0]].concat(n):s=[s[0]].concat(n),s=o.call(s,t),r.push(s.slice(1))}n=[];for(let i of r.slice().reverse())n.push(...i);return[s[0]].concat(n)})}build(e){Sg(e)&&(e=e[0]),e=e;let t;this.cells.forEach((n,a)=>{Ui(`RNNCell_${a}`,()=>{n.build(e),Array.isArray(n.stateSize)?t=n.stateSize[0]:t=n.stateSize,e=[e[0],t]})}),this.built=!0}getConfig(){let e=super.getConfig(),t=a=>({className:a.getClassName(),config:a.getConfig()}),n={cells:this.cells.map(t)};return Object.assign({},e,n)}static fromConfig(e,t,n={}){let a=[];for(let r of t.cells)a.push(Oa(r,n));return new e({cells:a})}get trainableWeights(){if(!this.trainable)return[];let e=[];for(let t of this.cells)e.push(...t.trainableWeights);return e}get nonTrainableWeights(){let e=[];for(let t of this.cells)e.push(...t.nonTrainableWeights);if(!this.trainable){let t=[];for(let n of this.cells)t.push(...n.trainableWeights);return t.concat(e)}return e}getWeights(){let e=[];for(let t of this.cells)e.push(...t.weights);return Ng(e)}setWeights(e){let t=[];for(let n of this.cells){let a=n.weights.length,r=e.splice(a);for(let s=0;s<n.weights.length;++s)t.push([n.weights[s],r[s]])}Tg(t)}};R0.className="StackedRNNCells";re.registerClass(R0);function is(e){let{ones:t,rate:n,training:a=!1,count:r=1}=e,s=()=>M4(t(),n),i=()=>Xd(s,t,a);return!r||r<=1?Xt(i().clone()):Array(r).fill(void 0).map(i).map(o=>Xt(o.clone()))}var Ure=function(e,t){var n={};for(var a in e)Object.prototype.hasOwnProperty.call(e,a)&&t.indexOf(a)<0&&(n[a]=e[a]);if(e!=null&&typeof Object.getOwnPropertySymbols=="function")for(var r=0,a=Object.getOwnPropertySymbols(e);r<a.length;r++)t.indexOf(a[r])<0&&Object.prototype.propertyIsEnumerable.call(e,a[r])&&(n[a[r]]=e[a[r]]);return n},O8=class extends ar{constructor(e){if(e.unroll)throw new ze("Unrolling is not possible with convolutional RNNs.");if(Array.isArray(e.cell))throw new ze("It is not possible at the moment to stack convolutional cells.");super(e);this.inputSpec=[new zt({ndim:5})]}call(e,t){return V(()=>{if(this.cell.dropoutMask!=null&&(he(this.cell.dropoutMask),this.cell.dropoutMask=null),this.cell.recurrentDropoutMask!=null&&(he(this.cell.recurrentDropoutMask),this.cell.recurrentDropoutMask=null),t&&t.constants)throw new U("ConvRNN2D cell does not support constants");let n=t==null?null:t.mask,a=t==null?null:t.training,r=t==null?null:t.initialState;return super.call(e,{mask:n,training:a,initialState:r})})}computeOutputShape(e){let t=this.computeSingleOutputShape(e);return this.returnSequences||(t=[t[0],...t.slice(2)]),this.returnState&&(t=[t,...Array(2).fill([e[0],...t.slice(-3)])]),t}getInitialState(e){return V(()=>{let{stateSize:t}=this.cell,n=e.shape,a=this.computeSingleOutputShape(n),r=[a[0],...a.slice(2)],s=$t(r);return Array.isArray(t)?Array(t.length).fill(s):[s]})}resetStates(e,t=!1){V(()=>{if(!this.stateful)throw new vr("Cannot call resetStates() on an RNN Layer that is not stateful.");let n=this.inputSpec[0].shape,a=this.computeSingleOutputShape(n),r=[a[0],...a.slice(2)];if(n[0]==null)throw new U("If an RNN is stateful, it needs to know its batch size. Specify the batch size of your input tensors: \n- If using a Sequential model, specify the batch size by passing a `batchInputShape` option to your first layer.\n- If using the functional API, specify the batch size by passing a `batchShape` option to your Input layer.");if(this.getStates()==null)Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(()=>$t(r)):this.states_=[$t(r)];else if(e==null)he(this.states_),this.keptStates!=null&&(he(this.keptStates),this.keptStates=[]),Array.isArray(this.cell.stateSize)?this.states_=this.cell.stateSize.map(()=>$t(r)):this.states_[0]=$t(r);else{if(Array.isArray(e)||(e=[e]),e.length!==this.states_.length)throw new U(`Layer ${this.name} expects ${this.states_.length} state(s), but it received ${e.length} state value(s). Input received: ${e}`);t?this.keptStates.push(this.states_.slice()):he(this.states_);for(let s=0;s<this.states_.length;++s){let i=e[s],o=r;if(!k.arraysEqual(i.shape,o))throw new U(`State ${s} is incompatible with layer ${this.name}: expected shape=${o}, received shape=${i.shape}`);this.states_[s]=i}}this.states_=this.states_.map(s=>Xt(s.clone()))})}computeSingleOutputShape(e){let{dataFormat:t,filters:n,kernelSize:a,padding:r,strides:s,dilationRate:i}=this.cell,o=t==="channelsFirst",u=e[o?3:2],l=e[o?4:3],d=za(u,a[0],r,s[0],i[0]),p=za(l,a[1],r,s[1],i[1]);return[...e.slice(0,2),...o?[n,d,p]:[d,p,n]]}};O8.className="ConvRNN2D";var M0=class extends rp{constructor(e){let{filters:t,kernelSize:n,strides:a,padding:r,dataFormat:s,dilationRate:i}=e;super(Object.assign({},e,{units:t}));this.filters=t,Yt(this.filters,"filters"),this.kernelSize=ru(n,2,"kernelSize"),this.kernelSize.forEach(o=>Yt(o,"kernelSize")),this.strides=ru(a||1,2,"strides"),this.strides.forEach(o=>Yt(o,"strides")),this.padding=r||"valid",ca(this.padding),this.dataFormat=s||"channelsLast",Ft(this.dataFormat),this.dilationRate=ru(i||1,2,"dilationRate"),this.dilationRate.forEach(o=>Yt(o,"dilationRate"))}build(e){var t;e=st(e);let n=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[n]==null)throw new U(`The channel dimension of the input should be defined. Found ${e[n]}`);let a=e[n],r=4,s=this.kernelSize.concat([a,this.filters*r]);this.kernel=this.addWeight("kernel",s,null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint);let i=this.kernelSize.concat([this.filters,this.filters*r]);if(this.recurrentKernel=this.addWeight("recurrent_kernel",i,null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias){let o;if(this.unitForgetBias){let u=this.biasInitializer,l=this.filters;o=new(t=class extends va{apply(d,p){let c=u.apply([l]),h=Vn([l]),m=u.apply([l*2]);return mg([c,h,m])}},t.className="CustomInit",t)}else o=this.biasInitializer;this.bias=this.addWeight("bias",[this.filters*r],null,o,this.biasRegularizer,!0,this.biasConstraint)}this.built=!0}call(e,t){return V(()=>{if(e.length!==3)throw new U(`ConvLSTM2DCell expects 3 input Tensors (inputs, h, c), got ${e.length}.`);let n=t.training||!1,a=e[0],r=e[1],s=e[2],i=4;0<this.dropout&&this.dropout<1&&this.dropoutMask==null&&(this.dropoutMask=is({ones:()=>jn(a),rate:this.dropout,training:n,count:i}));let o=this.dropoutMask,u=(K,ne,Q)=>!ne||!ne[Q]?K:B(ne[Q],K),l=u(a,o,0),d=u(a,o,1),p=u(a,o,2),c=u(a,o,3);0<this.recurrentDropout&&this.recurrentDropout<1&&this.recurrentDropoutMask==null&&(this.recurrentDropoutMask=is({ones:()=>jn(r),rate:this.recurrentDropout,training:n,count:i}));let h=this.recurrentDropoutMask,m=u(r,h,0),f=u(r,h,1),A=u(r,h,2),g=u(r,h,3),y=3,[x,v,b,w]=Kt(this.kernel.read(),i,y),[N,C,E,_]=this.useBias?Kt(this.bias.read(),i):[null,null,null,null];l=this.inputConv(l,x,N,this.padding),d=this.inputConv(d,v,C,this.padding),p=this.inputConv(p,b,E,this.padding),c=this.inputConv(c,w,_,this.padding);let[$,S,z,O]=Kt(this.recurrentKernel.read(),i,y);m=this.recurrentConv(m,$),f=this.recurrentConv(f,S),A=this.recurrentConv(A,z),g=this.recurrentConv(g,O);let W=this.recurrentActivation.apply(ie(l,m)),G=this.recurrentActivation.apply(ie(d,f)),H=ie(B(G,s),B(W,this.activation.apply(ie(p,A)))),J=B(this.recurrentActivation.apply(ie(c,g)),this.activation.apply(H));return[J,J,H]})}getConfig(){let e=super.getConfig(),{units:t}=e,n=Ure(e,["units"]),a={filters:this.filters,kernelSize:this.kernelSize,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,strides:this.strides};return Object.assign({},n,a)}inputConv(e,t,n,a){let r=mr(e,t,this.strides,a||"valid",this.dataFormat==="channelsFirst"?"NCHW":"NHWC",this.dilationRate);return n?$a(r,n,this.dataFormat):r}recurrentConv(e,t){return mr(e,t,1,"same",this.dataFormat==="channelsFirst"?"NCHW":"NHWC")}};M0.className="ConvLSTM2DCell";re.registerClass(M0);var oy=class extends O8{constructor(e){let t=new M0(e);super(Object.assign({},e,{cell:t}))}static fromConfig(e,t){return new e(t)}};oy.className="ConvLSTM2D";re.registerClass(oy);var F0=class extends Xe{constructor(e){super(e);this.rate=Math.max(Math.min(e.rate,1),0),this.noiseShape=e.noiseShape,this.seed=e.seed,this.supportsMasking=!0}getNoiseShape(e){if(this.noiseShape==null)return this.noiseShape;let t=e.shape,n=[];for(let a=0;a<this.noiseShape.length;++a)n.push(this.noiseShape[a]==null?t[a]:this.noiseShape[a]);return n}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);if(0<this.rate&&this.rate<1){let a=t.training==null?!1:t.training,r=this.getNoiseShape(n);return Xd(()=>M4(n,this.rate,r,this.seed),()=>n,a)}return e})}getConfig(){let e={rate:this.rate,noiseShape:this.noiseShape,seed:this.seed},t=super.getConfig();return Object.assign(e,t),e}dispose(){return super.dispose()}};F0.className="Dropout";re.registerClass(F0);var ly=class extends F0{constructor(e){super(e);this.inputSpec=[{ndim:3}]}getNoiseShape(e){let t=e.shape;return[t[0],1,t[2]]}};ly.className="SpatialDropout1D";re.registerClass(ly);var uy=class extends Xe{constructor(e){super(e);if(this.activation=null,this.useBias=!0,this.kernel=null,this.bias=null,this.DEFAULT_KERNEL_INITIALIZER="glorotNormal",this.DEFAULT_BIAS_INITIALIZER="zeros",e.batchInputShape==null&&e.inputShape==null&&e.inputDim!=null){let t=null;e.batchSize!=null&&(t=e.batchSize),this.batchInputShape=[t,e.inputDim]}this.units=e.units,Yt(this.units,"units"),this.activation=ss(e.activation),e.useBias!=null&&(this.useBias=e.useBias),this.kernelInitializer=bt(e.kernelInitializer||this.DEFAULT_KERNEL_INITIALIZER),this.biasInitializer=bt(e.biasInitializer||this.DEFAULT_BIAS_INITIALIZER),this.kernelConstraint=Ut(e.kernelConstraint),this.biasConstraint=Ut(e.biasConstraint),this.kernelRegularizer=vt(e.kernelRegularizer),this.biasRegularizer=vt(e.biasRegularizer),this.activityRegularizer=vt(e.activityRegularizer),this.supportsMasking=!0,this.inputSpec=[{minNDim:2}]}build(e){e=st(e);let t=e[e.length-1];this.kernel==null&&(this.kernel=this.addWeight("kernel",[t,this.units],null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint),this.useBias&&(this.bias=this.addWeight("bias",[this.units],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint))),this.inputSpec=[{minNDim:2,axes:{[-1]:t}}],this.built=!0}computeOutputShape(e){e=st(e);let t=e.slice();return t[t.length-1]=this.units,t}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e),a=b4(this.activation.getClassName()),r;return a!=null?r=er(n,this.kernel.read(),a,this.bias?this.bias.read():null):(r=er(n,this.kernel.read()),this.bias!=null&&(r=$a(r,this.bias.read())),this.activation!=null&&(r=this.activation.apply(r))),r})}getConfig(){let e={units:this.units,activation:rs(this.activation),useBias:this.useBias,kernelInitializer:Tt(this.kernelInitializer),biasInitializer:Tt(this.biasInitializer),kernelRegularizer:dt(this.kernelRegularizer),biasRegularizer:dt(this.biasRegularizer),activityRegularizer:dt(this.activityRegularizer),kernelConstraint:jt(this.kernelConstraint),biasConstraint:jt(this.biasConstraint)},t=super.getConfig();return Object.assign(e,t),e}};uy.className="Dense";re.registerClass(uy);var dy=class extends Xe{constructor(e){e=e||{},super(e),this.inputSpec=[{minNDim:3}],this.dataFormat=e.dataFormat}computeOutputShape(e){e=st(e);for(let t of e.slice(1))if(t==null)throw new U(`The shape of the input to "Flatten" is not fully defined (got ${e.slice(1)}). Make sure to pass a complete "input_shape" or "batch_input_shape" argument to the first layer in your model.`);return[e[0],ts(e,1)]}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);if(this.dataFormat==="channelsFirst"&&n.rank>1){let a=[0];for(let r=2;r<n.rank;++r)a.push(r);a.push(1),n=n.transpose(a)}return uae(n)})}getConfig(){let e={};this.dataFormat!=null&&(e.dataFormat=this.dataFormat);let t=super.getConfig();return Object.assign(e,t),e}};dy.className="Flatten";re.registerClass(dy);var py=class extends Xe{constructor(e){super(e);this.supportsMasking=!0,this.activation=ss(e.activation)}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);return this.activation.apply(n)})}getConfig(){let e={activation:rs(this.activation)},t=super.getConfig();return Object.assign(e,t),e}};py.className="Activation";re.registerClass(py);var cy=class extends Xe{constructor(e){super(e);this.n=e.n,this.inputSpec=[{ndim:2}]}computeOutputShape(e){return[e[0],this.n,e[1]]}call(e,t){return V(()=>(e=Le(e),oae(e,this.n)))}getConfig(){let e={n:this.n},t=super.getConfig();return Object.assign(e,t),e}};cy.className="RepeatVector";re.registerClass(cy);var hy=class extends Xe{constructor(e){super(e);this.targetShape=e.targetShape;for(let t=0;t<this.targetShape.length;++t)this.isUnknown(this.targetShape[t])&&(this.targetShape[t]=null)}isUnknown(e){return e<0||e==null}fixUnknownDimension(e,t){let n="Total size of new array must be unchanged.",a=t.slice(),r=1,s=null;for(let o=0;o<a.length;++o){let u=a[o];if(this.isUnknown(u))if(s===null)s=o;else throw new U("Can only specifiy one unknown dimension.");else r*=u}let i=ts(e);if(s!==null){if(r===0||i%r!=0)throw new U(n);a[s]=i/r}else if(i!==r)throw new U(n);return a}computeOutputShape(e){let t=!1;for(let n=0;n<e.length;++n)if(this.isUnknown(e[n])){t=!0;break}return t?e.slice(0,1).concat(this.targetShape):e.slice(0,1).concat(this.fixUnknownDimension(e.slice(1),this.targetShape))}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e),a=n.shape,r=a.slice(0,1).concat(this.fixUnknownDimension(a.slice(1),this.targetShape));return n.reshape(r)})}getConfig(){let e={targetShape:this.targetShape},t=super.getConfig();return Object.assign(e,t),e}};hy.className="Reshape";re.registerClass(hy);var fy=class extends Xe{constructor(e){super(e);if(e.dims==null)throw new Error("Required configuration field `dims` is missing during Permute constructor call.");if(!Array.isArray(e.dims))throw new Error(`Permute constructor requires \`dims\` to be an Array, but received ${e.dims} instead.`);let t=Fa(1,e.dims.length+1);if(!k.arraysEqual(e.dims.slice().sort(),t))throw new Error("Invalid permutation `dims`: "+JSON.stringify(e.dims)+" `dims` must contain consecutive integers starting from 1.");this.dims=e.dims,this.dimsIncludingBatch=[0].concat(this.dims),this.inputSpec=[new zt({ndim:this.dims.length+1})]}computeOutputShape(e){e=st(e);let t=e.slice();return this.dims.forEach((n,a)=>{t[a+1]=e[n]}),t}call(e,t){return Qe(Le(e),this.dimsIncludingBatch)}getConfig(){let e={dims:this.dims},t=super.getConfig();return Object.assign(e,t),e}};fy.className="Permute";re.registerClass(fy);var my=class extends Xe{constructor(e){super(e==null?{}:e);this.supportsMasking=!0,e!=null?this.maskValue=e.maskValue==null?0:e.maskValue:this.maskValue=0}computeOutputShape(e){return e}getConfig(){let e=super.getConfig(),t={maskValue:this.maskValue};return Object.assign(t,e),t}computeMask(e,t){let n=Le(e),a=-1;return id(Ri(n,this.maskValue),a)}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e),a=-1,r=!0,s=id(Ri(n,this.maskValue),a,r);return n.mul(s.asType(n.dtype))})}};my.className="Masking";re.registerClass(my);var Ay=class extends Xe{constructor(e){super(e);if(this.embeddings=null,this.DEFAULT_EMBEDDINGS_INITIALIZER="randomUniform",e.batchInputShape==null&&e.inputShape==null){let t=null;e.batchSize!=null&&(t=e.batchSize),e.inputLength==null?this.batchInputShape=[t,null]:this.batchInputShape=[t].concat(gt(e.inputLength))}this.inputDim=e.inputDim,Yt(this.inputDim,"inputDim"),this.outputDim=e.outputDim,Yt(this.outputDim,"outputDim"),this.embeddingsInitializer=bt(e.embeddingsInitializer||this.DEFAULT_EMBEDDINGS_INITIALIZER),this.embeddingsRegularizer=vt(e.embeddingsRegularizer),this.activityRegularizer=vt(e.activityRegularizer),this.embeddingsConstraint=Ut(e.embeddingsConstraint),this.maskZero=e.maskZero,this.supportsMasking=e.maskZero,this.inputLength=e.inputLength}build(e){this.embeddings=this.addWeight("embeddings",[this.inputDim,this.outputDim],this.dtype,this.embeddingsInitializer,this.embeddingsRegularizer,!0,this.embeddingsConstraint),this.built=!0}warnOnIncompatibleInputShape(e){}computeMask(e,t){return V(()=>this.maskZero?(e=Le(e),Ri(e,Ge(e))):null)}computeOutputShape(e){if(e=st(e),this.inputLength==null)return[...e,this.outputDim];let t=gt(this.inputLength);if(t.length!==e.length-1)throw new U(`"inputLength" is ${this.inputLength}, but received input shape has shape ${e}`);{let n=0;for(let a=0;a<t.length;++a){let r=t[a],s=e[a+1];if(r!=null&&s!=null&&r!==s)throw new U(`"inputLength" is ${this.inputLength}, but received input shape has shape ${e}`);r==null&&(t[n]=s),n++}}return[e[0],...t,this.outputDim]}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);return n.dtype!=="int32"&&(n=Hd(n,"int32")),R4(this.embeddings.read(),n.as1D()).reshape(st(this.computeOutputShape(n.shape)))})}getConfig(){let e={inputDim:this.inputDim,outputDim:this.outputDim,embeddingsInitializer:Tt(this.embeddingsInitializer),embeddingsRegularizer:dt(this.embeddingsRegularizer),activityRegularizer:dt(this.activityRegularizer),embeddingsConstraint:jt(this.embeddingsConstraint),maskZero:this.maskZero,inputLength:this.inputLength},t=super.getConfig();return Object.assign(e,t),e}};Ay.className="Embedding";re.registerClass(Ay);var Ki=class extends Xe{constructor(e){super(e||{});this.supportsMasking=!0}mergeFunction(e){throw new ze}computeElementwiseOpOutputShape(e,t){if(e==null||t==null)return null;if(e.length<t.length)return this.computeElementwiseOpOutputShape(t,e);if(t.length===0)return e;let n=e.slice(0,e.length-t.length);for(let a=0;a<t.length;++a){let r=e[e.length-t.length+a],s=t[a];if(r==null||s==null||r<0||s<0)n.push(null);else if(r===1)n.push(s);else if(s===1)n.push(r);else{if(r!==s)throw new U("Operands could not be broadcast together with shapes "+JSON.stringify(e)+" "+JSON.stringify(t));n.push(r)}}return n}build(e){if(Array.isArray(e)&&!Array.isArray(e[0])&&(e=[st(e)]),e=e,e.length<2)throw new U(`A merge layer should be called on an Array of at least 2 inputs. Got ${e.length} input(s).`);let t=[];for(let r of e)r!=null&&r[0]!==null&&t.push(r[0]);if(t=es(t),t.length>1)throw new U(`Can not merge tensors with different batch sizes. Got tensors with shapes: ${JSON.stringify(e)}.`);let n=e[0]==null?null:e[0].slice(1);for(let r=1;r<e.length;++r){let s=e[r]==null?null:e[r].slice(1);n=this.computeElementwiseOpOutputShape(n,s)}let a=e.map(r=>r.length);e.indexOf(null)===-1&&es(a).length===1?this.reshapeRequired=!1:this.reshapeRequired=!0}call(e,t){return V(()=>{if(e=e,this.reshapeRequired){let n=[],a=e.map(r=>r.rank);if(a.indexOf(null)===-1){let r=ns(a);for(let s of e){let i=s.rank;for(let o=0;o<r-i;++o)s=Gd(s,1);n.push(s)}return this.mergeFunction(n)}else{let r=!1;for(let o of e){let u=o.rank;if(u==null){let l=o.shape,d=l[0],p=l.slice(1).concat([d]),c=o.reshape([d].concat(ts(l.slice(1))));c=Qe(c,[1,0]),c=c.reshape(p),n.push(c),r=!0}else if(u>1){let l=Fa(1,u).concat([0]);n.push(Qe(o,l)),r=!0}else n.push(o)}let s=this.mergeFunction(n),i=s.rank;if(r){if(i==null){let o=s.shape,u=o.length,l=o[u-1],d=[l].concat(o.slice(0,o.length-1));s=Qe(s.reshape([-1,l]),[1,0]).reshape(d)}else if(i>1){let o=[i-1].concat(Fa(0,i-1));s=Qe(s,o)}}return s}}else return this.mergeFunction(e)})}computeOutputShape(e){e=e;let t;e[0]==null?t=null:t=e[0].slice(1);for(let a=1;a<e.length;++a){let r=e[a]==null?null:e[a].slice(1);t=this.computeElementwiseOpOutputShape(t,r)}let n=[];for(let a of e)a!=null&&a[0]!==null&&n.push(a[0]);return n=es(n),n.length===1?t=n.concat(t):t=[null].concat(t),t}computeMask(e,t){return V(()=>{if(t==null)return null;if(!Array.isArray(t))throw new U("`mask` should be an Array");if(!Array.isArray(e))throw new U("`inputs` should be an Array");if(t.length!==e.length)throw new U(`The Array 'inputs' and 'mask' are expected to have the same length, but have different lengths (${e.length} vs ${t.length})`);if(t.every(a=>a==null))return null;t=t.map(a=>a==null?a:fn(a,0));let n=t[0];for(let a=1;a<t.length-1;++a)n=xa(n,t[a]);return n})}},gy=class extends Ki{constructor(e){super(e)}mergeFunction(e){return V(()=>{let t=e[0].clone();for(let n=1;n<e.length;++n)t=ie(t,e[n]);return t})}};gy.className="Add";re.registerClass(gy);var yy=class extends Ki{constructor(e){super(e)}mergeFunction(e){return V(()=>{let t=e[0].clone();for(let n=1;n<e.length;++n)t=B(t,e[n]);return t})}};yy.className="Multiply";re.registerClass(yy);var xy=class extends Ki{constructor(e){super(e)}mergeFunction(e){return V(()=>{let t=e[0].clone();for(let n=1;n<e.length;++n)t=ie(t,e[n]);return B(1/e.length,t)})}};xy.className="Average";re.registerClass(xy);var by=class extends Ki{constructor(e){super(e)}mergeFunction(e){return V(()=>{let t=e[0];for(let n=1;n<e.length;++n)t=Xa(t,e[n]);return t})}};by.className="Maximum";re.registerClass(by);var vy=class extends Ki{constructor(e){super(e)}mergeFunction(e){return V(()=>{let t=e[0];for(let n=1;n<e.length;++n)t=Ml(t,e[n]);return t})}};vy.className="Minimum";re.registerClass(vy);var wy=class extends Ki{constructor(e){super(e);this.DEFAULT_AXIS=-1,e==null&&(e={}),this.axis=e.axis==null?this.DEFAULT_AXIS:e.axis,this.supportsMasking=!0,this.reshapeRequired=!1}build(e){if(!(Array.isArray(e)&&Array.isArray(e[0]))||e.length===1)throw new U("A `Concatenate` layer should be called on a list of at least 2 inputs");e=e;let t=!0;for(let a of e)if(a!=null){t=!1;break}if(t)return;let n=[];for(let a=0;a<e.length;++a){let r=e[a].slice();r.splice(this.axis,1);let s=!1;for(let i of n)if(k.arraysEqual(i,r)){s=!0;break}s||n.push(r)}if(n.length>1)throw new U("A `Concatenate` layer requires inputs with matching shapes except for the concat axis. Got input shapes: "+JSON.stringify(e))}mergeFunction(e){return V(()=>mg(e,this.axis))}computeOutputShape(e){if(!(Array.isArray(e)&&Array.isArray(e[0])))throw new U("A `Concatenate` layer should be called on a list of inputs.");let t=e,n=t[0].slice(),a=this.axis<0?n.length+this.axis:this.axis;for(let r of t.slice(1)){if(n[a]==null||r[a]==null){n[a]=null;break}n[a]+=r[a]}return n}computeMask(e,t){if(t==null)return null;if(!Array.isArray(t))throw new U("`mask` should be an array for Concatenate");if(!Array.isArray(e))throw new U("`inputs` should be an array for Concatenate");if(t.length!==e.length)throw new U(`Mismatch in the length of mask (${t.length}) and the legnth of inputs (${e.length})`);return V(()=>{let n=!0;if(t.forEach(s=>{if(s!=null){n=!1;return}}),n)return null;let a=[];for(let s=0;s<e.length;++s)t[s]==null?a.push(jn(e[s]).asType("bool")):t[s].rank<e[s].rank?a.push(fn(t[s],-1)):a.push(t[s]);let r=lt(a,this.axis);return Uc(r,-1,!1)})}getConfig(){let e={axis:this.axis},t=super.getConfig();return Object.assign(e,t),e}};wy.className="Concatenate";re.registerClass(wy);function sp(e,t){for(;e<0;)e+=t;return e}function Hre(e,t,n){if(e.shape.length>3||t.shape.length>3)throw new ze("batchDot is not implemented for tensors of 4D or higher rank yet");if(k.assert(e.shape.length>=2,()=>`batchDot requires the rank of x to be >= 2, but got ${e.shape.length}`),k.assert(e.shape.length>=2,()=>`batchDot requires the rank of y to be >= 2, but got ${t.shape.length}`),typeof n=="number"&&(n=[n,n]),e.dtype==="complex64"||t.dtype==="complex64")throw new ze("batchDot is not implemented for complex64-type Tensors yet.");let a=e.shape.length,r=t.shape.length;n==null&&(n=[a-1,r-2]);let s=n;return V(()=>{let i;if(a>r){i=a-r;let u=[];for(let l=0;l<i;++l)u.push(1);t=t.reshape(t.shape.concat(u))}else if(r>a){i=r-a;let u=[];for(let l=0;l<i;++l)u.push(1);e=e.reshape(e.shape.concat(u))}else i=0;let o;if(e.shape.length===2&&t.shape.length===2)s[0]===s[1]?o=e.mul(t).sum(s[0]):o=e.transpose([1,0]).mul(t).sum(s[1]);else{let u=s[0]!==e.shape.length-1,l=s[1]===t.shape.length-1;o=e.matMul(t,u,l)}if(i>0){let u;a>r?u=a+r-3:u=a-1;let l=[];for(let d=u;d<u+i;++d)l.push(d);o=o.squeeze(l)}return o.shape.length===1&&(o=o.expandDims(1)),o})}var ky=class extends Ki{constructor(e){super(e);this.axes=e.axes,this.normalize=e.normalize==null?!1:e.normalize,this.supportsMasking=!0,this.reshapeRequired=!1}build(e){k.assert(Array.isArray(e)&&e.length===2&&Array.isArray(e[0])&&Array.isArray(e[1]),()=>"A `Dot` layer should be called on a list of exactly 2 inputs.");let t=e[0],n=e[1];if(t.length>3||n.length>3)throw new ze("Dot layer does not support tensors of 4D or higher rank yet.");let a=this.interpretAxes(t,n);if(t[a[0]]!==n[a[1]])throw new U(`Dimension incompatibility: ${t[a[0]]} !== ${n[a[1]]}`)}mergeFunction(e){if(e.length!==2)throw new U(`A \`Dot\` layer must be called on exactly 2 inputs, but received ${e.length} input(s).`);let t=e[0],n=e[1],a;return Array.isArray(this.axes)?a=this.axes.map((r,s)=>sp(r,e[s].shape.length)):a=[sp(this.axes,t.shape.length),sp(this.axes,n.shape.length)],this.normalize&&(t=x0(t,a[0]),n=x0(n,a[1])),Hre(t,n,a)}interpretAxes(e,t){let n;return Array.isArray(this.axes)?n=this.axes:n=[sp(this.axes,e.length),sp(this.axes,t.length)],n}computeOutputShape(e){k.assert(Array.isArray(e)&&e.length===2&&Array.isArray(e[0])&&Array.isArray(e[1]),()=>"A `Dot` layer should be called on a list of exactly 2 inputs.");let t=e[0].slice(),n=e[1].slice();if(t.length>3||n.length>3)throw new ze("Dot layer does not support tensors of 4D or higher rank yet.");let a=this.interpretAxes(t,n);t.splice(a[0],1),n.splice(a[1],1),n.splice(0,1);let r=t.concat(n);return r.length===1&&r.push(1),r}computeMask(e,t){return null}getConfig(){let e={axes:this.axes,normalize:this.normalize},t=super.getConfig();return Object.assign(e,t),e}};ky.className="Dot";re.registerClass(ky);var Iy=class extends Xe{constructor(e){super(e);this.supportsMasking=!0,this.stddev=e.stddev}computeOutputShape(e){return e}getConfig(){let e=super.getConfig(),t={stddev:this.stddev};return Object.assign(t,e),t}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);return Xd(()=>i0(n.shape,0,this.stddev).add(n),()=>n,t.training||!1)})}};Iy.className="GaussianNoise";re.registerClass(Iy);var Sy=class extends Xe{constructor(e){super(e);this.supportsMasking=!0,this.rate=e.rate}computeOutputShape(e){return e}getConfig(){let e=super.getConfig(),t={rate:this.rate};return Object.assign(t,e),t}call(e,t){return V(()=>{this.invokeCallHook(e,t);let n=Le(e);return this.rate>0&&this.rate<1?Xd(()=>{let a=Math.sqrt(this.rate/(1-this.rate));return n.mul(i0(n.shape,1,a))},()=>n,t.training||!1):n})}};Sy.className="GaussianDropout";re.registerClass(Sy);var Ny=class extends Xe{constructor(e){super(e);this.supportsMasking=!0,this.rate=e.rate,this.noiseShape=e.noiseShape}_getNoiseShape(e){return this.noiseShape||Le(e).shape}computeOutputShape(e){return e}getConfig(){let e=super.getConfig(),t={rate:this.rate};return Object.assign(t,e),t}call(e,t){return V(()=>{if(this.rate<1&&this.rate>0){let n=this._getNoiseShape(e);return Xd(()=>{let a=Le(e),r=1.6732632423543772,s=1.0507009873554805,i=-r*s,o=qr(Fl(n),this.rate);o=Hd(o,"float32");let u=((1-this.rate)*(1+this.rate*i**2))**-.5,l=-u*i*this.rate;return a.mul(o).add(o.add(-1).mul(i)).mul(u).add(l)},()=>Le(e),t.training||!1)}return e})}};Ny.className="AlphaDropout";re.registerClass(Ny);function ip(e,t,n,a,r,s=.001){let i;if(e.rank===2)i=m3(e,t,n,a,r,s);else if(e.rank===3)i=A3(e,t,n,a,r,s);else if(e.rank===4)i=g3(e,t,n,a,r,s);else throw new ze(`batchNormalization is not implemented for array of rank ${e.rank} yet`);return i}function Gre(e,t,n,a,r=.001){return V(()=>{let s=nh(e,a),i=s.mean,o=s.variance;return[ip(e,i,o,n,t,r),i,o]})}function qre(e,t,n,a,r=.001){return V(()=>{let s=nh(e,a),i=s.mean,o=s.variance,u=[];for(let h of Fa(0,e.rank))a.indexOf(h)!==-1?u.push(1):u.push(e.shape[h]);let l=i.reshape(u),d=o.reshape(u),p=t==null?null:t.reshape(u),c=n==null?null:n.reshape(u);return[ip(e,l,d,c,p,r),i,o]})}function Xre(e,t,n,a,r=.001){return k.arraysEqual(a.slice().sort(),Fa(0,e.rank-1))?Gre(e,t,n,a,r):qre(e,t,n,a,r)}var Ty=class extends Xe{constructor(e){e==null&&(e={}),super(e),this.supportsMasking=!0,this.axis=e.axis==null?-1:e.axis,this.momentum=e.momentum==null?.99:e.momentum,this.epsilon=e.epsilon==null?.001:e.epsilon,this.center=e.center==null?!0:e.center,this.scale=e.scale==null?!0:e.scale,this.betaInitializer=bt(e.betaInitializer||"zeros"),this.gammaInitializer=bt(e.gammaInitializer||"ones"),this.movingMeanInitializer=bt(e.movingMeanInitializer||"zeros"),this.movingVarianceInitializer=bt(e.movingVarianceInitializer||"ones"),this.betaConstraint=Ut(e.betaConstraint),this.gammaConstraint=Ut(e.gammaConstraint),this.betaRegularizer=vt(e.betaRegularizer),this.gammaRegularizer=vt(e.gammaRegularizer)}build(e){e=st(e);let t=this.axis>=0?this.axis:this.axis+e.length,n=e[t];if(n==null)throw new U(`Axis ${t} of input tensor should have a defined dimension but the layer received an input with shape ${JSON.stringify(e)}.`);this.inputSpec=[new zt({ndim:e.length,axes:{[t]:n}})];let a=[n];this.scale&&(this.gamma=this.addWeight("gamma",a,null,this.gammaInitializer,this.gammaRegularizer,!0,this.gammaConstraint)),this.center&&(this.beta=this.addWeight("beta",a,null,this.betaInitializer,this.betaRegularizer,!0,this.betaConstraint)),this.movingMean=this.addWeight("moving_mean",a,null,this.movingMeanInitializer,null,!1),this.movingVariance=this.addWeight("moving_variance",a,null,this.movingVarianceInitializer,null,!1),this.built=!0}call(e,t){return V(()=>{let n=t.training==null?!1:t.training,a=Le(e),r=a.shape,s=r.length,i=Fa(0,s),o=this.axis>=0?this.axis:this.axis+s;i.splice(o,1);let u=Bi(1,s);u[o]=r[o];let l=i.slice();l.sort();let d=!k.arraysEqual(l,Fa(0,s).slice(0,s-1)),p=()=>{if(d){let A=this.movingMean.read().reshape(u),g=this.movingVariance.read().reshape(u),y=this.center?this.beta.read().reshape(u):null,x=this.scale?this.gamma.read().reshape(u):null;return ip(a,A,g,y,x,this.epsilon)}else return ip(a,this.movingMean.read(),this.movingVariance.read(),this.beta==null?null:this.beta.read(),this.gamma==null?null:this.gamma.read(),this.epsilon)};if(!n)return p();let[c,h,m]=Xre(a,this.gamma.read(),this.beta.read(),i,this.epsilon),f=(A,g,y)=>{V(()=>{let x=1-y,v=A.read(),b=v.sub(g).mul(x);A.write(v.sub(b))})};return(()=>{f(this.movingMean,h,this.momentum),f(this.movingVariance,m,this.momentum)})(),c})}getConfig(){let e={axis:this.axis,momentum:this.momentum,epsilon:this.epsilon,center:this.center,scale:this.scale,betaInitializer:Tt(this.betaInitializer),gammaInitializer:Tt(this.gammaInitializer),movingMeanInitializer:Tt(this.movingMeanInitializer),movingVarianceInitializer:Tt(this.movingVarianceInitializer),betaRegularizer:dt(this.betaRegularizer),gammaRegularizer:dt(this.gammaRegularizer),betaConstraint:jt(this.betaConstraint),gammaConstraint:jt(this.gammaConstraint)},t=super.getConfig();return Object.assign(e,t),e}};Ty.className="BatchNormalization";re.registerClass(Ty);var Cy=class extends Xe{constructor(e){if(e==null&&(e={}),super(e),this.axis=e.axis==null?-1:e.axis,typeof this.axis=="number"){if(!Number.isInteger(this.axis))throw new Error(`Expected axis to be an integer, but received ${this.axis}`)}else if(Array.isArray(this.axis)){for(let t of this.axis)if(!Number.isInteger(t))throw new Error(`Expected axis to be an array of integers, but received ${JSON.stringify(this.axis)}`)}else throw new Error(`Expected axis to be an integer or an array of integers, but received ${JSON.stringify(this.axis)}`);this.epsilon=e.epsilon==null?.001:e.epsilon,this.center=e.center==null?!0:e.center,this.scale=e.scale==null?!0:e.scale,this.betaInitializer=bt(e.betaInitializer||"zeros"),this.gammaInitializer=bt(e.gammaInitializer||"ones"),this.betaRegularizer=vt(e.betaRegularizer),this.gammaRegularizer=vt(e.gammaRegularizer),this.supportsMasking=!0}build(e){e=st(e);let t=e.length;typeof this.axis=="number"&&(this.axis=[this.axis]);for(let r=0;r<this.axis.length;++r)this.axis[r]<0&&(this.axis[r]+=t);for(let r of this.axis)if(r<0||r>=t)throw new Error(`Invalid axis: ${r}`);if(this.axis.length!==es(this.axis).length)throw new Error(`Found duplicate axes in: ${this.axis}`);let n=this.axis.map(r=>e[r]),a=!0;this.scale?this.gamma=this.addWeight("gamma",n,"float32",this.gammaInitializer,this.gammaRegularizer,a):this.gamma=null,this.center?this.beta=this.addWeight("beta",n,"float32",this.betaInitializer,this.betaRegularizer,a):this.beta=null,this.built=!0}call(e,t){let n=Le(e),a=n.shape,r=a.length;return V(()=>{let s=!0,{mean:i,variance:o}=nh(n,this.axis,s),u=Bi(1,r);for(let m of this.axis)u[m]=a[m];let l=m=>m!=null&&m.shape.length!==r&&this.axis!==[r-1]?m.reshape(u):m,d=l(this.gamma.read()),p=l(this.beta.read()),c=[],h=[];for(let m=0;m<r;++m)this.axis.indexOf(m)!==-1?(c.push(a[m]),h.push(1)):(c.push(1),h.push(a[m]));return i=i.tile(c),o=o.tile(c),d=d.tile(h),p=p.tile(h),ip(n,i,o,p,d,this.epsilon)})}getConfig(){let e={axis:this.axis,epsilon:this.epsilon,center:this.center,scale:this.scale,betaInitializer:Tt(this.betaInitializer),gammaInitializer:Tt(this.gammaInitializer),betaRegularizer:dt(this.betaRegularizer),gammaRegularizer:dt(this.gammaRegularizer)},t=super.getConfig();return Object.assign(e,t),e}};Cy.className="LayerNormalization";re.registerClass(Cy);function Kre(e,t,n){return V(()=>{if(e.rank!==4)throw new U(`temporalPadding expects input tensor to be 4-D, but received a ${e.rank}-D tensor.`);if(t==null&&(t=[[1,1],[1,1]]),t.length!==2||t[0].length!==2||t[1].length!==2)throw new U("spatial2dPadding expects `padding` to be an Array of two Arrays, each of which is an Array of two integers.");if(n==null&&(n=Ra()),n!=="channelsLast"&&n!=="channelsFirst")throw new U(`Unknown data format: ${n}. 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length-${e.padding[1].length} array.`);n=e.padding[1]}this.padding=[t,n]}this.inputSpec=[new zt({ndim:4})]}computeOutputShape(e){e=st(e);let t,n;return this.dataFormat==="channelsFirst"?(e[2]!=null&&e[2]>=0?t=e[2]+this.padding[0][0]+this.padding[0][1]:t=null,e[3]!=null&&e[3]>=0?n=e[3]+this.padding[1][0]+this.padding[1][1]:n=null,[e[0],e[1],t,n]):(e[1]!=null&&e[1]>=0?t=e[1]+this.padding[0][0]+this.padding[0][1]:t=null,e[2]!=null&&e[2]>=0?n=e[2]+this.padding[1][0]+this.padding[1][1]:n=null,[e[0],t,n,e[3]])}call(e,t){return V(()=>Kre(Le(e),this.padding,this.dataFormat))}getConfig(){let e={padding:this.padding,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}};Ey.className="ZeroPadding2D";re.registerClass(Ey);function $0(e,t,n,a,r,s){return V(()=>{Ft(r),I4(s),ca(a),n==null&&(n=[1,1]),a==null&&(a="valid"),r==null&&(r=Ra()),s==null&&(s="max"),e=Zg(e,r);let i,o=a==="same"?"same":"valid";return s==="max"?i=hd(e,t,n,o):i=ld(e,t,n,o),r==="channelsFirst"&&(i=Qe(i,[0,3,1,2])),i})}function z8(e,t,n,a,r,s){return V(()=>{Ft(r),I4(s),ca(a),n==null&&(n=[1,1,1]),a==null&&(a="valid"),r==null&&(r=Ra()),s==null&&(s="max"),e=R8(e,r);let i,o=a==="same"?"same":"valid";return s==="max"?i=J1(e,t,n,o):i=z1(e,t,n,o),r==="channelsFirst"&&(i=Qe(i,[0,4,1,2,3])),i})}var _8=class extends Xe{constructor(e){if(e.poolSize==null&&(e.poolSize=2),super(e),typeof e.poolSize=="number")this.poolSize=[e.poolSize];else if(Array.isArray(e.poolSize)&&e.poolSize.length===1&&typeof e.poolSize[0]=="number")this.poolSize=e.poolSize;else throw new U(`poolSize for 1D convolutional layer must be a number or an Array of a single number, but received ${JSON.stringify(e.poolSize)}`);if(Yt(this.poolSize,"poolSize"),e.strides==null)this.strides=this.poolSize;else if(typeof e.strides=="number")this.strides=[e.strides];else if(Array.isArray(e.strides)&&e.strides.length===1&&typeof e.strides[0]=="number")this.strides=e.strides;else throw new U(`strides for 1D convolutional layer must be a number or an Array of a single number, but received ${JSON.stringify(e.strides)}`);Yt(this.strides,"strides"),this.padding=e.padding==null?"valid":e.padding,ca(this.padding),this.inputSpec=[new zt({ndim:3})]}computeOutputShape(e){e=st(e);let t=za(e[1],this.poolSize[0],this.padding,this.strides[0]);return[e[0],t,e[2]]}call(e,t){return V(()=>{this.invokeCallHook(e,t),e=Gd(Le(e),2);let n=this.poolingFunction(Le(e),[this.poolSize[0],1],[this.strides[0],1],this.padding,"channelsLast");return Hn(n,[2])})}getConfig(){let e={poolSize:this.poolSize,padding:this.padding,strides:this.strides},t=super.getConfig();return Object.assign(e,t),e}},Ry=class extends _8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),$0(e,t,n,a,r,"max")}};Ry.className="MaxPooling1D";re.registerClass(Ry);var My=class extends _8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),$0(e,t,n,a,r,"avg")}};My.className="AveragePooling1D";re.registerClass(My);var P8=class extends Xe{constructor(e){if(e.poolSize==null&&(e.poolSize=[2,2]),super(e),this.poolSize=Array.isArray(e.poolSize)?e.poolSize:[e.poolSize,e.poolSize],e.strides==null)this.strides=this.poolSize;else if(Array.isArray(e.strides)){if(e.strides.length!==2)throw new U(`If the strides property of a 2D pooling layer is an Array, it is expected to have a length of 2, but received length ${e.strides.length}.`);this.strides=e.strides}else this.strides=[e.strides,e.strides];Yt(this.poolSize,"poolSize"),Yt(this.strides,"strides"),this.padding=e.padding==null?"valid":e.padding,this.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,Ft(this.dataFormat),ca(this.padding),this.inputSpec=[new zt({ndim:4})]}computeOutputShape(e){e=st(e);let t=this.dataFormat==="channelsFirst"?e[2]:e[1],n=this.dataFormat==="channelsFirst"?e[3]:e[2];return t=za(t,this.poolSize[0],this.padding,this.strides[0]),n=za(n,this.poolSize[1],this.padding,this.strides[1]),this.dataFormat==="channelsFirst"?[e[0],e[1],t,n]:[e[0],t,n,e[3]]}call(e,t){return V(()=>(this.invokeCallHook(e,t),this.poolingFunction(Le(e),this.poolSize,this.strides,this.padding,this.dataFormat)))}getConfig(){let e={poolSize:this.poolSize,padding:this.padding,strides:this.strides,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}},Fy=class extends P8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),$0(e,t,n,a,r,"max")}};Fy.className="MaxPooling2D";re.registerClass(Fy);var $y=class extends P8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),$0(e,t,n,a,r,"avg")}};$y.className="AveragePooling2D";re.registerClass($y);var L8=class extends Xe{constructor(e){if(e.poolSize==null&&(e.poolSize=[2,2,2]),super(e),this.poolSize=Array.isArray(e.poolSize)?e.poolSize:[e.poolSize,e.poolSize,e.poolSize],e.strides==null)this.strides=this.poolSize;else if(Array.isArray(e.strides)){if(e.strides.length!==3)throw new U(`If the strides property of a 3D pooling layer is an Array, it is expected to have a length of 3, but received length ${e.strides.length}.`);this.strides=e.strides}else this.strides=[e.strides,e.strides,e.strides];Yt(this.poolSize,"poolSize"),Yt(this.strides,"strides"),this.padding=e.padding==null?"valid":e.padding,this.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,Ft(this.dataFormat),ca(this.padding),this.inputSpec=[new zt({ndim:5})]}computeOutputShape(e){e=st(e);let t=this.dataFormat==="channelsFirst"?e[2]:e[1],n=this.dataFormat==="channelsFirst"?e[3]:e[2],a=this.dataFormat==="channelsFirst"?e[4]:e[3];return t=za(t,this.poolSize[0],this.padding,this.strides[0]),n=za(n,this.poolSize[1],this.padding,this.strides[1]),a=za(a,this.poolSize[2],this.padding,this.strides[2]),this.dataFormat==="channelsFirst"?[e[0],e[1],t,n,a]:[e[0],t,n,a,e[4]]}call(e,t){return V(()=>(this.invokeCallHook(e,t),this.poolingFunction(Le(e),this.poolSize,this.strides,this.padding,this.dataFormat)))}getConfig(){let e={poolSize:this.poolSize,padding:this.padding,strides:this.strides,dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}},Dy=class extends L8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),z8(e,t,n,a,r,"max")}};Dy.className="MaxPooling3D";re.registerClass(Dy);var Oy=class extends L8{constructor(e){super(e)}poolingFunction(e,t,n,a,r){return Ft(r),ca(a),z8(e,t,n,a,r,"avg")}};Oy.className="AveragePooling3D";re.registerClass(Oy);var W8=class extends Xe{constructor(e){super(e);this.inputSpec=[new zt({ndim:3})]}computeOutputShape(e){return[e[0],e[2]]}call(e,t){throw new ze}},zy=class extends W8{constructor(e){super(e||{})}call(e,t){return V(()=>{let n=Le(e);return Nt(n,1)})}};zy.className="GlobalAveragePooling1D";re.registerClass(zy);var _y=class extends W8{constructor(e){super(e||{})}call(e,t){return V(()=>{let n=Le(e);return Bn(n,1)})}};_y.className="GlobalMaxPooling1D";re.registerClass(_y);var B8=class extends Xe{constructor(e){super(e);this.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,Ft(this.dataFormat),this.inputSpec=[new zt({ndim:4})]}computeOutputShape(e){return e=e,this.dataFormat==="channelsLast"?[e[0],e[3]]:[e[0],e[1]]}call(e,t){throw new ze}getConfig(){let e={dataFormat:this.dataFormat},t=super.getConfig();return Object.assign(e,t),e}},Py=class extends B8{call(e,t){return V(()=>{let n=Le(e);return this.dataFormat==="channelsLast"?Nt(n,[1,2]):Nt(n,[2,3])})}};Py.className="GlobalAveragePooling2D";re.registerClass(Py);var Ly=class extends B8{call(e,t){return V(()=>{let n=Le(e);return this.dataFormat==="channelsLast"?Bn(n,[1,2]):Bn(n,[2,3])})}};Ly.className="GlobalMaxPooling2D";re.registerClass(Ly);var V8=class extends Xe{constructor(e){super(e);this.layer=e.layer}build(e){this.built=!0}get trainable(){return this.layer!=null?this.layer.trainable:!1}set trainable(e){this.layer!=null&&(this.layer.trainable=e)}get trainableWeights(){return this.layer.trainableWeights}get nonTrainableWeights(){return this.layer.nonTrainableWeights}get updates(){return this.layer._updates}get losses(){return this.layer.losses}getWeights(){return this.layer.getWeights()}setWeights(e){this.layer.setWeights(e)}getConfig(){let e={layer:{className:this.layer.getClassName(),config:this.layer.getConfig()}},t=super.getConfig();return Object.assign(e,t),e}setFastWeightInitDuringBuild(e){super.setFastWeightInitDuringBuild(e),this.layer!=null&&this.layer.setFastWeightInitDuringBuild(e)}static fromConfig(e,t,n={}){let a=t.layer,r=Oa(a,n);delete t.layer;let s={layer:r};return Object.assign(s,t),new e(s)}},Wy=class extends V8{constructor(e){super(e);this.supportsMasking=!0}build(e){if(e=st(e),e.length<3)throw new U(`TimeDistributed layer expects an input shape >= 3D, but received input shape ${JSON.stringify(e)}`);this.inputSpec=[{shape:e}];let t=[e[0]].concat(e.slice(2));this.layer.built||(this.layer.build(t),this.layer.built=!0),super.build(e)}computeOutputShape(e){e=st(e);let t=[e[0]].concat(e.slice(2)),n=this.layer.computeOutputShape(t),a=e[1];return[n[0],a].concat(n.slice(1))}call(e,t){return V(()=>(e=Le(e),D8((n,a)=>[Le(this.layer.call(n,t)),[]],e,[],!1,null,null,!1,!0)[1]))}};Wy.className="TimeDistributed";re.registerClass(Wy);function Zre(e){ji(nae,"BidirectionalMergeMode",e)}var Yre="concat",By=class extends V8{constructor(e){super(e);let t=e.layer.getConfig(),n={};n.className=e.layer.getClassName(),n.config=t,this.forwardLayer=Oa(n),t.goBackwards=t.goBackwards!==!0;let a={};if(a.className=e.layer.getClassName(),a.config=t,this.backwardLayer=Oa(a),this.forwardLayer.name="forward_"+this.forwardLayer.name,this.backwardLayer.name="backward_"+this.backwardLayer.name,this.mergeMode=e.mergeMode===void 0?Yre:e.mergeMode,Zre(this.mergeMode),e.weights)throw new ze("weights support is not implemented for Bidirectional layer yet.");this._stateful=e.layer.stateful,this.returnSequences=e.layer.returnSequences,this.returnState=e.layer.returnState,this.supportsMasking=!0,this._trainable=!0,this.inputSpec=e.layer.inputSpec,this.numConstants=null}get trainable(){return this._trainable}set trainable(e){this._trainable=e,this.forwardLayer!=null&&(this.forwardLayer.trainable=e),this.backwardLayer!=null&&(this.backwardLayer.trainable=e)}getWeights(){return this.forwardLayer.getWeights().concat(this.backwardLayer.getWeights())}setWeights(e){let t=e.length,n=Math.floor(t/2);this.forwardLayer.setWeights(e.slice(0,n)),this.backwardLayer.setWeights(e.slice(n))}computeOutputShape(e){let t=this.forwardLayer.computeOutputShape(e);Array.isArray(t)&&Array.isArray(t[0])||(t=[t]),t=t;let n,a,r;return this.returnState&&(r=t.slice(1)),n=t[0],n=n,this.mergeMode==="concat"?(n[n.length-1]*=2,a=[n]):this.mergeMode==null?a=[n,n.slice()]:a=[n],this.returnState?this.mergeMode==null?a.concat(r).concat(r.slice()):[n].concat(r).concat(r.slice()):Fn(a)}apply(e,t){let n=t==null?null:t.initialState,a=t==null?null:t.constants;t==null&&(t={});let r=$8(e,n,a,this.numConstants);if(e=r.inputs,n=r.initialState,a=r.constants,Array.isArray(e)&&(n=e.slice(1),e=e[0]),(n==null||n.length===0)&&a==null)return super.apply(e,t);let s=[],i=[];if(n!=null){let u=n.length;if(u%2>0)throw new U("When passing `initialState` to a Bidrectional RNN, the state should be an Array containing the states of the underlying RNNs.");t.initialState=n,s.push(...n);let l=n.map(d=>new zt({shape:d.shape}));this.forwardLayer.stateSpec=l.slice(0,u/2),this.backwardLayer.stateSpec=l.slice(u/2),i.push(...l)}if(a!=null)throw new ze("Support for constants in Bidirectional layers is not implemented yet.");let o=s[0]instanceof Da;for(let u of s)if(u instanceof Da!==o)throw new U("The initial state of a Bidirectional layer cannot be specified as a mix of symbolic and non-symbolic tensors");if(o){let u=[e].concat(s),l=this.inputSpec.concat(i),d=this.inputSpec;this.inputSpec=l;let p=super.apply(u,t);return this.inputSpec=d,p}else return super.apply(e,t)}call(e,t){return V(()=>{let n=t.initialState,a,r;if(n==null)a=this.forwardLayer.call(e,t),r=this.backwardLayer.call(e,t);else{let o=n.slice(0,n.length/2),u=n.slice(n.length/2);a=this.forwardLayer.call(e,Object.assign(t,{initialState:o})),r=this.backwardLayer.call(e,Object.assign(t,{initialState:u}))}let s;this.returnState&&(Array.isArray(a)&&(s=a.slice(1).concat(r.slice(1))),a=a[0],r=r[0]),this.returnSequences&&(r=Un(r,1));let i;return this.mergeMode==="concat"?i=mg([a,r]):this.mergeMode==="sum"?i=ie(a,r):this.mergeMode==="ave"?i=B(.5,ie(a,r)):this.mergeMode==="mul"?i=B(a,r):this.mergeMode==null&&(i=[a,r]),this.returnState?this.mergeMode==null?i.concat(s):[i].concat(s):i})}resetStates(e){this.forwardLayer.resetStates(),this.backwardLayer.resetStates()}build(e){Ui(this.forwardLayer.name,()=>{this.forwardLayer.build(e)}),Ui(this.backwardLayer.name,()=>{this.backwardLayer.build(e)}),this.built=!0}computeMask(e,t){Array.isArray(t)&&(t=t[0]);let n;if(this.returnSequences?this.mergeMode==null?n=[t,t]:n=t:this.mergeMode==null?n=[null,null]:n=null,this.returnState){let a=this.forwardLayer.states.map(r=>null);return Array.isArray(n)?n.concat(a).concat(a):[n].concat(a).concat(a)}else return n}get trainableWeights(){return this.forwardLayer.trainableWeights.concat(this.backwardLayer.trainableWeights)}get nonTrainableWeights(){return 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eoe=class{constructor(e,t,n,a,r,s,i){this.name=e,this.dtype=t,this.maxSize=n,this.elementShape=a,this.identicalElementShapes=r,this.dynamicSize=s,this.clearAfterRead=i,this.tensors=[],this.closed_=!1,this.idTensor=ke(0),Xt(this.idTensor)}get id(){return this.idTensor.id}get closed(){return this.closed_}clearAndClose(e){this.tensors.forEach(t=>{(e==null||!e.has(t.tensor.id))&&t.tensor.dispose()}),this.tensors=[],this.closed_=!0,this.idTensor.dispose()}size(){return this.tensors.length}read(e){if(this.closed_)throw new Error(`TensorArray ${this.name} has already been closed.`);if(e<0||e>=this.size())throw new Error(`Tried to read from index ${e}, but array size is: ${this.size()}`);let t=this.tensors[e];if(t.cleared)throw new Error(`TensorArray ${this.name}: Could not read index ${e} twice because it was cleared after a previous read (perhaps try setting clear_after_read = false?).`);return this.clearAfterRead&&(t.cleared=!0),t.read=!0,t.tensor}readMany(e){return 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a=I("strides",e,t,n),r=z0(e,t,n),s=I("dataFormat",e,t,n).toUpperCase(),i=I("dilations",e,t,n);return[mr(I("x",e,t,n),I("filter",e,t,n),[a[1],a[2]],r,s,[i[1],i[2]])]}case"_FusedConv2D":{let{stride:a,pad:r,dataFormat:s,dilations:i,biasArg:o,preluArg:u,activationFunc:l,leakyreluAlpha:d}=Sk(e,t,n);return[Kr.conv2d({x:I("x",e,t,n),filter:I("filter",e,t,n),strides:[a[1],a[2]],pad:r,dataFormat:s,dilations:[i[1],i[2]],bias:o,activation:l,preluActivationWeights:u,leakyreluAlpha:d})]}case"FusedDepthwiseConv2dNative":{let{stride:a,pad:r,dataFormat:s,dilations:i,biasArg:o,preluArg:u,activationFunc:l,leakyreluAlpha:d}=Sk(e,t,n);return[Kr.depthwiseConv2d({x:I("x",e,t,n),filter:I("filter",e,t,n),strides:[a[1],a[2]],pad:r,dataFormat:s,dilations:[i[1],i[2]],bias:o,activation:l,preluActivationWeights:u,leakyreluAlpha:d})]}case"Conv2DBackpropInput":case"Conv2dTranspose":{let 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implemented`)}},xoe=(e,t,n)=>{switch(e.op){case"SparseFillEmptyRows":{let{outputIndices:a,outputValues:r,emptyRowIndicator:s,reverseIndexMap:i}=wd.sparseFillEmptyRows(I("indices",e,t,n),I("values",e,t,n),I("denseShape",e,t,n),I("defaultValue",e,t,n));return[a,r,s,i]}case"SparseReshape":{let{outputIndices:a,outputShape:r}=wd.sparseReshape(I("inputIndices",e,t,n),I("inputShape",e,t,n),I("newShape",e,t,n));return[a,r]}case"SparseSegmentMean":return[wd.sparseSegmentMean(I("data",e,t,n),I("indices",e,t,n),I("segmentIds",e,t,n))];case"SparseSegmentSum":return[wd.sparseSegmentSum(I("data",e,t,n),I("indices",e,t,n),I("segmentIds",e,t,n))];default:throw TypeError(`Node type ${e.op} is not implemented`)}},boe=(e,t,n)=>{switch(e.op){case"FFT":return[bd(I("x",e,t,n))];case"IFFT":return[Dl(I("x",e,t,n))];case"RFFT":return[vd(I("x",e,t,n))];case"IRFFT":return[ch(I("x",e,t,n))];default:throw TypeError(`Node type ${e.op} is not implemented`)}},voe=(e,t,n)=>{switch(e.op){case"StringNGrams":{let{nGrams:a,nGramsSplits:r}=vh.stringNGrams(I("data",e,t,n),I("dataSplits",e,t,n),I("separator",e,t,n),I("nGramWidths",e,t,n),I("leftPad",e,t,n),I("rightPad",e,t,n),I("padWidth",e,t,n),I("preserveShortSequences",e,t,n));return[a,r]}case"StringSplit":{let{indices:a,values:r,shape:s}=vh.stringSplit(I("input",e,t,n),I("delimiter",e,t,n),I("skipEmpty",e,t,n));return[a,r,s]}case"StringToHashBucketFast":return[vh.stringToHashBucketFast(I("input",e,t,n),I("numBuckets",e,t,n))];default:throw TypeError(`Node type ${e.op} is not implemented`)}},woe=(e,t,n)=>{switch(e.op){case"Cast":return[Ae(I("x",e,t,n),I("dtype",e,t,n))];case"ExpandDims":{let a=I("axis",e,t,n);return[fn(I("x",e,t,n),a)]}case"Squeeze":{let a=I("axis",e,t,n);return[Hn(I("x",e,t,n),a)]}case"Reshape":return[q(I("x",e,t,n),I("shape",e,t,n))];case"MirrorPad":return[Q1(I("x",e,t,n),I("padding",e,t,n),I("mode",e,t,n))];case"PadV2":case"Pad":return[Ar(I("x",e,t,n),I("padding",e,t,n),I("constantValue",e,t,n))];case"SpaceToBatchND":{let a=I("blockShape",e,t,n),r=I("paddings",e,t,n);return[md(I("x",e,t,n),a,r)]}case"BatchToSpaceND":{let a=I("blockShape",e,t,n),r=I("crops",e,t,n);return[ud(I("x",e,t,n),a,r)]}case"DepthToSpace":{let a=I("blockSize",e,t,n),r=I("dataFormat",e,t,n).toUpperCase();return[B1(I("x",e,t,n),a,r)]}case"BroadcastTo":return[Sl(I("x",e,t,n),I("shape",e,t,n))];default:throw TypeError(`Node type ${e.op} is not implemented`)}};function Nk(e,t,n,a){let r=((s,i,o)=>{switch(s.category){case"arithmetic":return V(()=>Jie(s,i,o));case"basic_math":return V(()=>Qie(s,i,o));case"control":return soe(s,i,o);case"convolution":return V(()=>ioe(s,i,o));case"creation":return V(()=>ooe(s,i,o));case"dynamic":return loe(s,i,o);case"evaluation":return V(()=>uoe(s,i,o));case"image":return V(()=>hoe(s,i,o));case"graph":return V(()=>doe(s,i,o));case"logical":return V(()=>foe(s,i,o));case"matrices":return V(()=>moe(s,i,o));case"normalization":return V(()=>Aoe(s,i,o));case"reduction":return V(()=>goe(s,i,o));case"slice_join":return V(()=>yoe(s,i,o));case"sparse":return V(()=>xoe(s,i,o));case"spectral":return V(()=>boe(s,i,o));case"string":return V(()=>voe(s,i,o));case"transformation":return V(()=>woe(s,i,o));case"hash_table":return coe(s,i,o,a);case"custom":let u=ek(s.op);if(u&&u.customExecutor)return u.customExecutor(new Yie(s,i,o));throw TypeError(`Custom op ${s.op} is not registered.`);default:throw TypeError(`Unknown op '${s.op}'. File an issue at https://github.com/tensorflow/tfjs/issues so we can add it, or register a custom execution with tf.registerOp()`)}})(e,t,n);return k.isPromise(r)?r.then(s=>[].concat(s)):[].concat(r)}var Tk=class{constructor(e={},t={},n={},a={}){this.weightMap=e,this.tensorArrayMap=t,this.tensorListMap=n,this.functionMap=a,this.rootContext={id:0,frameName:"",iterationId:0},this.contexts=[this.rootContext],this.lastId=0,this.generateCurrentContextIds()}newFrame(e,t){return{id:e,frameName:t,iterationId:0}}set currentContext(e){this.contexts!==e&&(this.contexts=e,this.generateCurrentContextIds())}get currentContext(){return this.contexts}get currentContextId(){return this._currentContextIds[0]}get currentContextIds(){return this._currentContextIds}generateCurrentContextIds(){let e=[];for(let t=0;t<this.contexts.length-1;t++){let n=this.contexts.slice(0,this.contexts.length-t);e.push(this.contextIdforContexts(n))}e.push(""),this._currentContextIds=e}contextIdforContexts(e){return e?e.map(t=>t.id===0&&t.iterationId===0?"":`${t.frameName}-${t.iterationId}`).join("/"):""}enterFrame(e){this.contexts&&(this.lastId++,this.contexts=this.contexts.slice(),this.contexts.push(this.newFrame(this.lastId,e)),this._currentContextIds.unshift(this.contextIdforContexts(this.contexts)))}exitFrame(){if(this.contexts&&this.contexts.length>1)this.contexts=this.contexts.slice(),this.contexts.splice(-1),this.currentContextIds.shift();else throw new Error("Cannot exit frame, the context is empty")}nextIteration(){if(this.contexts&&this.contexts.length>0){this.contexts=this.contexts.slice(),this.lastId++;let e=Object.assign({},this.contexts[this.contexts.length-1]);e.iterationId+=1,e.id=this.lastId,this.contexts.splice(-1,1,e),this._currentContextIds.splice(0,1,this.contextIdforContexts(this.contexts))}else throw new Error("Cannot increase frame iteration, the context is empty")}getWeight(e){return this.weightMap[e]}addTensorArray(e){this.tensorArrayMap[e.id]=e}getTensorArray(e){return this.tensorArrayMap[e]}addTensorList(e){this.tensorListMap[e.id]=e}getTensorList(e){return this.tensorListMap[e]}dispose(e){for(let t in this.tensorArrayMap)this.tensorArrayMap[t].clearAndClose(e);for(let t in this.tensorListMap)this.tensorListMap[t].clearAndClose(e)}};function Ck(e,t,n,a){let r=new Set,s=[],i=null,o=null,u=new Set,l=Object.keys(e).map(c=>Kn(c)[0]),d=[];a!=null&&(d=a.map(c=>Kn(c.name)[0]));let p=[...t];for(;p.length>0;){let c=p.pop();if((Ek(c)||Toe(c)||Coe(c))&&i==null&&(i=c,o=i.children.map(h=>h.name).filter(h=>r.has(h))),r.add(c.name),n[c.name]==null&&l.indexOf(c.name)===-1&&d.indexOf(c.name)===-1){if(c.inputs.length===0){s.push(c.name);continue}c.inputs.forEach(h=>{u.has(h.name)||(u.add(h.name),p.push(h))})}}return{inputs:e,outputs:t,usedNodes:r,missingInputs:s,dynamicNode:i,syncInputs:o}}function koe(e,t,n){let{usedNodes:a,inputs:r}=n,s=[],i=Object.keys(r).map(d=>Kn(d)[0]).map(d=>e.nodes[d]),o=e.initNodes;i.forEach(d=>{a.has(d.name)&&s.push(d)}),e.weights.forEach(d=>{a.has(d.name)&&s.push(d)}),o!=null&&o.forEach(d=>{a.has(d.name)&&s.push(d)});let u=new Set,l=[];for(;s.length>0;){let d=s.pop();u.add(d.name),t[d.name]||l.push(d),d.children.forEach(p=>{!u.has(p.name)&&a.has(p.name)&&p.inputs.every(c=>u.has(c.name))&&s.push(p)})}return l}var Ioe=["Switch","Merge","Enter","Exit","NextIteration","StatelessIf","StatelessWhile","if","While"],Soe=["NonMaxSuppressionV2","NonMaxSuppressionV3","NonMaxSuppressionV5","Where"],Noe=["HashTable","HashTableV2","LookupTableImport","LookupTableImportV2","LookupTableFind","LookupTableFindV2","LookupTableSize","LookupTableSizeV2"];function Ek(e){return Ioe.indexOf(e.op)>=0}function Toe(e){return Soe.indexOf(e.op)>=0}function Coe(e){return Noe.indexOf(e.op)>=0}var s2=class{constructor(e,t){this.graph=e,this.parent=t,this.compiledMap=new Map,this._weightMap={},this.SEPERATOR=",",this._functions={},this._functionExecutorMap={},this._outputs=e.outputs,this._inputs=e.inputs,this._initNodes=e.initNodes,this._signature=e.signature,this._functions=e.functions,e.functions!=null&&Object.keys(e.functions).forEach(n=>{this._functionExecutorMap[n]=new s2(e.functions[n],this)})}get weightIds(){return this.parent?this.parent.weightIds:this._weightIds}get functionExecutorMap(){return this.parent?this.parent.functionExecutorMap:this._functionExecutorMap}get weightMap(){return this.parent?this.parent.weightMap:this._weightMap}set weightMap(e){let t=Object.keys(e).map(n=>e[n].map(a=>a.id));this._weightIds=[].concat(...t),this._weightMap=e}set resourceManager(e){this._resourceManager=e}get inputs(){return this._inputs.map(e=>({name:e.name,shape:e.attrParams.shape?e.attrParams.shape.value:void 0,dtype:e.attrParams.dtype?e.attrParams.dtype.value:void 0}))}get outputs(){return this._outputs.map(e=>({name:e.name,shape:e.attrParams.shape?e.attrParams.shape.value:void 0,dtype:e.attrParams.dtype?e.attrParams.dtype.value:void 0}))}get inputNodes(){return this._inputs.map(e=>e.signatureKey||e.name)}get outputNodes(){return this._outputs.map(e=>{let t=e.signatureKey||e.name;return e.defaultOutput?`${t}:${e.defaultOutput}`:t})}get functions(){return Object.keys(this._functions).reduce((e,t)=>(e[t]=this._functions[t].signature,e),{})}getCompilationKey(e,t){let n=e.map(r=>r.name).sort(),a=t.map(r=>r.name).sort();return n.join(this.SEPERATOR)+"--"+a.join(this.SEPERATOR)}compile(e,t){let n=Ck(e,t,this.weightMap,this._initNodes),{missingInputs:a,dynamicNode:r,syncInputs:s}=n;if(r!=null)throw new Error(`This execution contains the node '${r.name}', which has the dynamic op '${r.op}'. Please use model.executeAsync() instead. Alternatively, to avoid the dynamic ops, specify the inputs [${s}]`);if(a.length>0){let i=t.map(u=>u.name),o=Object.keys(e);throw new Error(`Cannot compute the outputs [${i}] from the provided inputs [${o}]. Missing the following inputs: [${a}]`)}return koe(this.graph,this.weightMap,n)}execute(e,t){e=this.mapInputs(e);let n=Object.keys(e).sort();this.checkInputs(e),this.checkInputShapeAndType(e),t=this.mapOutputs(t),this.checkOutputs(t);let a=n.map(d=>this.graph.nodes[Kn(d)[0]]),r=t.map(d=>Kn(d)[0]),s=r.map(d=>this.graph.nodes[d]);s.length===0&&(s=this._outputs);let i=this.getCompilationKey(a,s),o=this.compiledMap.get(i);o==null&&(o=this.compile(e,s),this.compiledMap.set(i,o));let u={},l={};return V(()=>{let d=new Tk(this.weightMap,u,l,this.functionExecutorMap),p=Object.assign({},this.weightMap);Object.keys(e).forEach(m=>{let[f,A]=Kn(m),g=[];g[A]=e[m],p[f]=g});let c=this.getFrozenTensorIds(p),h={};for(let m=0;m<o.length;m++){let f=o[m];if(!p[f.name]){let A=Nk(f,p,d,this._resourceManager);if(k.isPromise(A))throw new Error(`The execution of the op '${f.op}' returned a promise. Please use model.executeAsync() instead.`);p[f.name]=A,this.checkTensorForDisposal(f.name,f,p,d,c,r,h)}}return this.parent==null&&d.dispose(c),t.map(m=>wn(m,p,d))})}getFrozenTensorIds(e){let t=[].concat.apply([],Object.keys(e).map(n=>e[n]).map(n=>n.map(a=>a.id)));return new Set(t)}checkTensorForDisposal(e,t,n,a,r,s,i){t.category==="control"||s.indexOf(e)!==-1||(n[e].forEach(o=>{o!=null&&(i[o.id]=(i[o.id]||0)+t.children.length)}),t.inputs.forEach(o=>{if(o.category!=="control"){let u=Rie(o.name,n,a);u!=null&&u.forEach(l=>{if(l&&!l.kept&&!r.has(l.id)){let d=i[l.id];d===1?(l.dispose(),delete i[l.id]):d!=null&&i[l.id]--}})}}))}async executeAsync(e,t){return this._executeAsync(e,t)}async _executeAsync(e,t,n=!1,a={},r={}){n||(e=this.mapInputs(e),this.checkInputs(e),this.checkInputShapeAndType(e),t=this.mapOutputs(t),this.checkOutputs(t));let s=new Tk(this.weightMap,a,r,this.functionExecutorMap),i=await this.executeWithControlFlow(e,s,t,n),o=t.map(p=>wn(p,i,s)),u=o.map(p=>p.id),l=Object.keys(e).map(p=>e[p].id),d=new Set([...u,...l,...this.weightIds]);return Object.keys(i).forEach(p=>{i[p].forEach(c=>{c&&!c.kept&&!c.isDisposed&&!d.has(c.id)&&c.dispose()})}),this.parent==null&&s.dispose(d),o}async executeFunctionAsync(e,t,n){let a=e.reduce((r,s,i)=>(r[this.inputs[i].name]=s,r),{});return this._executeAsync(a,this.outputNodes,!0,t,n)}async executeWithControlFlow(e,t,n,a){let r=Object.keys(e),s=r.map(y=>this.graph.nodes[Kn(y)[0]]),i=n.map(y=>Kn(y)[0]),o=i.map(y=>this.graph.nodes[y]);o.length===0&&(o=this._outputs);let{usedNodes:u,missingInputs:l,dynamicNode:d,syncInputs:p}=Ck(e,o,this.weightMap,this._initNodes),c=[...s,...this.graph.weights,...this._initNodes||[]].map(y=>({node:y,contexts:t.currentContext})),h=Object.assign({},this.weightMap);Object.keys(e).forEach(y=>{let[x,v]=Kn(y),b=[];b[v]=e[y],h[x]=b});let m={},f=this.getFrozenTensorIds(h),A={};for(;c.length>0;){let y=this.processStack(s,c,t,h,A,f,i,m,u);await Promise.all(y)}d==null&&!a&&console.warn("This model execution did not contain any nodes with control flow or dynamic output shapes. You can use model.execute() instead.");let g=o.filter(y=>!Ek(y)&&!wn(y.name,h,t)).map(y=>y.name);if(g.length>0){let y="";throw d!=null&&(y=`Alternatively, to avoid the dynamic ops, use model.execute() and specify the inputs [${p}]`),new Error(`Cannot compute the outputs [${g}] from the provided inputs [${r}]. Consider providing the following inputs: [${l}]. ${y}`)}return h}processStack(e,t,n,a,r,s,i,o,u){let l=[];for(;t.length>0;){let d=t.pop();n.currentContext=d.contexts;let p="";if(d.node.op==="Enter"&&I("isConstant",d.node,a,n)&&([p]=Ir(d.node.name,n)),a[d.node.name]==null){let c=Nk(d.node,a,n,this._resourceManager);p||([p]=Ir(d.node.name,n));let h=n.currentContext;k.isPromise(c)?l.push(c.then(m=>(a[p]=m,n.currentContext=h,this.checkTensorForDisposal(p,d.node,a,n,s,i,o),this.processChildNodes(d.node,t,n,a,r,u),m))):(a[p]=c,this.checkTensorForDisposal(p,d.node,a,n,s,i,o),this.processChildNodes(d.node,t,n,a,r,u))}else this.processChildNodes(d.node,t,n,a,r,u)}return l}processChildNodes(e,t,n,a,r,s){e.children.forEach(i=>{let[o]=Ir(i.name,n);r[o]||!s.has(i.name)||(i.op==="Merge"?i.inputNames.some(u=>!!wn(u,a,n))&&(r[o]=!0,t.push({contexts:n.currentContext,node:i})):i.inputNames.every(u=>!!wn(u,a,n))&&(r[o]=!0,t.push({contexts:n.currentContext,node:i})))})}dispose(){Object.keys(this.weightMap).forEach(e=>this.weightMap[e].forEach(t=>t.dispose()))}checkInputShapeAndType(e){Object.keys(e).forEach(t=>{let n=e[t],[a]=Kn(t),r=this.graph.nodes[a];if(r.attrParams.shape&&r.attrParams.shape.value){let s=r.attrParams.shape.value,i=s.length===n.shape.length&&n.shape.every((o,u)=>s[u]===-1||s[u]===o);k.assert(i,()=>`The shape of dict['${r.name}'] provided in model.execute(dict) must be [${s}], but was [${n.shape}]`)}r.attrParams.dtype&&r.attrParams.dtype.value&&k.assert(n.dtype===r.attrParams.dtype.value,()=>`The dtype of dict['${r.name}'] provided in model.execute(dict) must be ${r.attrParams.dtype.value}, but was ${n.dtype}`)})}mapInputs(e){let t={};for(let n in e)if(this._signature!=null&&this._signature.inputs!=null&&this._signature.inputs[n]!=null){let a=this._signature.inputs[n];t[a.name]=e[n]}else t[n]=e[n];return t}checkInputs(e){let t=Object.keys(e).filter(n=>{let[a]=Kn(n);return this.graph.nodes[a]==null});if(t.length>0)throw new Error(`The dict provided in model.execute(dict) has keys: [${t}] that are not part of graph`)}mapOutputs(e){return e.map(t=>this._signature!=null&&this._signature.outputs!=null&&this._signature.outputs[t]!=null?this._signature.outputs[t].name:t,{})}checkOutputs(e){e.forEach(t=>{let[n]=Kn(t);if(!this.graph.nodes[n])throw new Error(`The output '${t}' is not found in the graph`)})}},Eoe=class{constructor(e={},t={}){this.hashTableNameToHandle=e,this.hashTableMap=t}addHashTable(e,t){this.hashTableNameToHandle[e]=t.handle,this.hashTableMap[t.id]=t}getHashTableHandleByName(e){return this.hashTableNameToHandle[e]}getHashTableById(e){return this.hashTableMap[e]}dispose(){for(let e in this.hashTableMap)this.hashTableMap[e].clearAndClose(),delete this.hashTableMap[e];for(let e in this.hashTableNameToHandle)this.hashTableNameToHandle[e].dispose(),delete this.hashTableNameToHandle[e]}},Roe="?tfjs-format=file",Moe="model.json",Rk=class{constructor(e,t={}){this.modelUrl=e,this.loadOptions=t,this.version="n/a",t==null&&(this.loadOptions={}),this.resourceManager=new Eoe}get modelVersion(){return this.version}get inputNodes(){return this.executor.inputNodes}get outputNodes(){return this.executor.outputNodes}get inputs(){return this.executor.inputs}get outputs(){return this.executor.outputs}get weights(){return this.executor.weightMap}get metadata(){return this.artifacts.userDefinedMetadata}get modelSignature(){return this.signature}findIOHandler(){let e=this.modelUrl;if(e.load!=null)this.handler=e;else if(this.loadOptions.requestInit!=null)this.handler=Cn.browserHTTPRequest(e,this.loadOptions);else{let t=Cn.getLoadHandlers(e,this.loadOptions);if(t.length===0)t.push(Cn.browserHTTPRequest(e,this.loadOptions));else if(t.length>1)throw new Error(`Found more than one (${t.length}) load handlers for URL '${[e]}'`);this.handler=t[0]}}async load(){if(this.findIOHandler(),this.handler.load==null)throw new Error("Cannot proceed with model loading because the IOHandler provided does not have the `load` method implemented.");let e=await this.handler.load();return this.loadSync(e)}loadSync(e){this.artifacts=e;let t=this.artifacts.modelTopology,n;this.artifacts.userDefinedMetadata!=null&&this.artifacts.userDefinedMetadata.signature!=null?n=this.artifacts.userDefinedMetadata.signature:n=this.artifacts.signature,this.signature=n,this.version=`${t.versions.producer}.${t.versions.minConsumer}`;let a=Cn.decodeWeights(this.artifacts.weightData,this.artifacts.weightSpecs);if(this.executor=new s2(bk.Instance.transformGraph(t,this.signature)),this.executor.weightMap=this.convertTensorMapToTensorsMap(a),this.executor.resourceManager=this.resourceManager,e.modelInitializer!=null&&e.modelInitializer.node!=null){let r=bk.Instance.transformGraph(e.modelInitializer);this.initializer=new s2(r),this.initializer.weightMap=this.executor.weightMap,this.initializer.resourceManager=this.resourceManager,this.initializer.executeAsync({},[])}return!0}async save(e,t){if(typeof e=="string"){let n=Cn.getSaveHandlers(e);if(n.length===0)throw new Error(`Cannot find any save handlers for URL '${e}'`);if(n.length>1)throw new Error(`Found more than one (${n.length}) save handlers for URL '${e}'`);e=n[0]}if(e.save==null)throw new Error("GraphModel.save() cannot proceed because the IOHandler provided does not have the `save` attribute defined.");return e.save(this.artifacts)}predict(e,t){return this.execute(e,this.outputNodes)}normalizeInputs(e){if(!(e instanceof Be)&&!Array.isArray(e))return e;if(e=Array.isArray(e)?e:[e],e.length!==this.inputNodes.length)throw new Error(`Input tensor count mismatch,the graph model has ${this.inputNodes.length} placeholders, while there are ${e.length} input tensors.`);return this.inputNodes.reduce((t,n,a)=>(t[n]=e[a],t),{})}normalizeOutputs(e){return e=e||this.outputNodes,Array.isArray(e)?e:[e]}execute(e,t){e=this.normalizeInputs(e),t=this.normalizeOutputs(t);let n=this.executor.execute(e,t);return n.length>1?n:n[0]}async executeAsync(e,t){e=this.normalizeInputs(e),t=this.normalizeOutputs(t);let n=await this.executor.executeAsync(e,t);return n.length>1?n:n[0]}convertTensorMapToTensorsMap(e){return Object.keys(e).reduce((t,n)=>(t[n]=[e[n]],t),{})}dispose(){this.executor.dispose(),this.initializer&&this.initializer.dispose(),this.resourceManager.dispose()}};async function ct(e,t={}){if(e==null)throw new Error("modelUrl in loadGraphModel() cannot be null. 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wle=[127,234,132,58,172,150,149,148,152,377,378,379,397,288,361,454,356,70,63,105,66,107,336,296,334,293,300,168,6,195,4,98,97,2,326,327,33,160,158,133,153,144,362,385,387,263,373,380,57,40,37,0,267,270,287,321,314,17,84,91,78,81,13,311,308,402,14,178],kle=[33,133,362,263,1,62,308,159,145,386,374,6,102,331,2,13,14,70,105,107,336,334,300,54,10,284,50,280,234,454,58,288,152],Ile=[33,133,362,263,1,78,308],fue=wle.map(e=>cp[e]),mue=kle.map(e=>cp[e]),Aue=Ile.map(e=>cp[e]);var h2=rr.leftEyeLower0,f2=rr.rightEyeLower0,uu={leftBounds:[h2[0],h2[h2.length-1]],rightBounds:[f2[0],f2[f2.length-1]]},U0={count:468,mouth:13,symmetryLine:[13,rr.midwayBetweenEyes[0]]},u9={leftEye:0,rightEye:1,nose:2,mouth:3,leftEar:4,rightEar:5,symmetryLine:[3,2]},du={upperCenter:3,lowerCenter:4,index:71,numCoordinates:76};function H0(e,t,n,a){for(let r=0;r<c2.length;r++){let{key:s,indices:i}=c2[r],o=rr[`${n}${s}`];if(!a||a.includes(s))for(let u=0;u<i.length;u++){let l=i[u];e[o[u]]=[t[l][0],t[l][1],(t[l][2]+e[o[u]][2])/2]}}}var m2=class{constructor(t,n,a){var r,s;this.storedBoxes=[],this.boundingBoxDetector=t,this.meshDetector=n,this.irisModel=a,this.boxSize=((r=t==null?void 0:t.model)==null?void 0:r.inputs[0].shape[2])||0,this.meshSize=(n==null?void 0:n.inputs[0].shape[2])||((s=t==null?void 0:t.model)==null?void 0:s.inputs[0].shape[2]),this.irisSize=(a==null?void 0:a.inputs[0].shape[1])||0,this.irisEnlarge=2.3,this.skipped=0,this.detectedFaces=0}transformRawCoords(t,n,a,r){let s=pp({startPoint:n.startPoint,endPoint:n.endPoint}),i=t.map(p=>[s[0]/this.meshSize*(p[0]-this.meshSize/2),s[1]/this.meshSize*(p[1]-this.meshSize/2),p[2]]),o=a!==0?j0(a,[0,0]):V0,u=a!==0?i.map(p=>[...r9(p,o),p[2]]):i,l=a!==0?a9(r):V0,d=[...ou({startPoint:n.startPoint,endPoint:n.endPoint}),1];return u.map(p=>[Math.round(p[0]+ls(d,l[0])),Math.round(p[1]+ls(d,l[1])),Math.round(p[2])])}getLeftToRightEyeDepthDifference(t){let n=t[uu.leftBounds[0]][2],a=t[uu.rightBounds[0]][2];return n-a}getEyeBox(t,n,a,r,s=!1){let i=B0(W0(d2([t[a],t[r]]),this.irisEnlarge)),o=pp(i),u=_e.cropAndResize(n,[[i.startPoint[1]/this.meshSize,i.startPoint[0]/this.meshSize,i.endPoint[1]/this.meshSize,i.endPoint[0]/this.meshSize]],[0],[this.irisSize,this.irisSize]);return s&&sa.flags.IS_BROWSER&&(u=_e.flipLeftRight(u)),{box:i,boxSize:o,crop:u}}getEyeCoords(t,n,a,r=!1){let s=[];for(let i=0;i<du.numCoordinates;i++){let o=t[i*3],u=t[i*3+1],l=t[i*3+2];s.push([(r?1-o/this.irisSize:o/this.irisSize)*a[0]+n.startPoint[0],u/this.irisSize*a[1]+n.startPoint[1],l])}return{rawCoords:s,iris:s.slice(du.index)}}getAdjustedIrisCoords(t,n,a){let r=t[rr[`${a}EyeUpper0`][du.upperCenter]][2],s=t[rr[`${a}EyeLower0`][du.lowerCenter]][2],i=(r+s)/2;return n.map((o,u)=>{let l=i;return u===2?l=r:u===4&&(l=s),[o[0],o[1],l]})}async predict(t,n){let a=!1,r;if((this.skipped===0||this.skipped>n.face.detector.skipFrames||!n.face.mesh.enabled||!n.skipFrame)&&(r=await this.boundingBoxDetector.getBoundingBoxes(t),this.skipped=0),n.skipFrame&&this.skipped++,!n.skipFrame||r&&r.boxes&&(!n.face.mesh.enabled||r.boxes.length!==this.detectedFaces&&this.detectedFaces!==n.face.detector.maxDetected)){this.storedBoxes=[],this.detectedFaces=0;for(let i of r.boxes)this.storedBoxes.push({startPoint:i.box.startPoint.dataSync(),endPoint:i.box.endPoint.dataSync(),landmarks:i.landmarks.arraySync(),confidence:i.confidence});this.storedBoxes.length>0&&(a=!0)}if(a){if(!r||!r.boxes||r.boxes.length===0)return this.storedBoxes=[],this.detectedFaces=0,null;for(let i=0;i<this.storedBoxes.length;i++){let o=Qk({startPoint:this.storedBoxes[i].startPoint,endPoint:this.storedBoxes[i].endPoint},r.scaleFactor),u=W0(o),l=B0(u),d=this.storedBoxes[i].landmarks,p=this.storedBoxes[i].confidence;this.storedBoxes[i]={...l,confidence:p,landmarks:d}}}r&&r.boxes&&r.boxes.forEach(i=>{i.box.startPoint.dispose(),i.box.endPoint.dispose(),i.landmarks.dispose()});let s=V(()=>this.storedBoxes.map((i,o)=>{let u,l=0,d;if(n.face.detector.rotation&&n.face.mesh.enabled&&sa.flags.IS_BROWSER){let[x,v]=i.landmarks.length>=U0.count?U0.symmetryLine:u9.symmetryLine;l=p2(i.landmarks[x],i.landmarks[v]);let b=ou({startPoint:i.startPoint,endPoint:i.endPoint}),w=[b[0]/t.shape[2],b[1]/t.shape[1]],N=_e.rotateWithOffset(t,l,0,w);d=j0(-l,b),n.face.mesh.enabled?u=lu({startPoint:i.startPoint,endPoint:i.endPoint},N,[this.meshSize,this.meshSize]).div(255):u=lu({startPoint:i.startPoint,endPoint:i.endPoint},N,[this.boxSize,this.boxSize]).div(255)}else{d=V0;let x=t.clone();n.face.mesh.enabled?u=lu({startPoint:i.startPoint,endPoint:i.endPoint},x,[this.meshSize,this.meshSize]).div(255):u=lu({startPoint:i.startPoint,endPoint:i.endPoint},x,[this.boxSize,this.boxSize]).div(255)}if(!n.face.mesh.enabled)return{mesh:[],box:i,faceConfidence:null,boxConfidence:i.confidence,confidence:i.confidence,image:u};let[,p,c]=this.meshDetector.execute(u),h=p.dataSync()[0];if(h<n.face.detector.minConfidence)return this.storedBoxes[o].confidence=h,null;let f=q(c,[-1,3]).arraySync();if(n.face.iris.enabled){let{box:x,boxSize:v,crop:b}=this.getEyeBox(f,u,uu.leftBounds[0],uu.leftBounds[1],!0),{box:w,boxSize:N,crop:C}=this.getEyeBox(f,u,uu.rightBounds[0],uu.rightBounds[1]),_=this.irisModel.predict(lt([b,C])).dataSync(),$=_.slice(0,du.numCoordinates*3),{rawCoords:S,iris:z}=this.getEyeCoords($,x,v,!0),O=_.slice(du.numCoordinates*3),{rawCoords:W,iris:G}=this.getEyeCoords(O,w,N),H=this.getLeftToRightEyeDepthDifference(f);Math.abs(H)<30?(H0(f,S,"left",null),H0(f,W,"right",null)):H<1?H0(f,S,"left",["EyeUpper0","EyeLower0"]):H0(f,W,"right",["EyeUpper0","EyeLower0"]);let J=this.getAdjustedIrisCoords(f,z,"left"),K=this.getAdjustedIrisCoords(f,G,"right");f=f.concat(J).concat(K)}let A=this.transformRawCoords(f,i,l,d),g=i.confidence;if(i=W0(d2(A),1.5),i.confidence=g,n.face.detector.rotation&&n.face.mesh.enabled&&n.face.description.enabled&&sa.flags.IS_BROWSER){let[x,v]=i.landmarks.length>=U0.count?U0.symmetryLine:u9.symmetryLine;l=p2(i.landmarks[x],i.landmarks[v]);let b=ou({startPoint:i.startPoint,endPoint:i.endPoint}),w=[b[0]/t.shape[2],b[1]/t.shape[1]],N=_e.rotateWithOffset(t.toFloat(),l,0,w);d=j0(-l,b),u=lu({startPoint:i.startPoint,endPoint:i.endPoint},N,[this.meshSize,this.meshSize]).div(255)}let y={mesh:A,box:i,faceConfidence:h,boxConfidence:i.confidence,image:u};return this.storedBoxes[o]={...B0(i),confidence:i.confidence,faceConfidence:h},y}));return n.face.mesh.enabled&&(this.storedBoxes=this.storedBoxes.filter(i=>i.confidence>n.face.detector.minConfidence)),this.detectedFaces=s.length,s}};var Rt=[null,null,null],A2;async function d9(e,t){let n=await A2.predict(e,t),a=[],r=0;for(let s of n||[]){if(!s||s.isDisposedInternal)continue;let i=s.mesh.map(d=>[d[0]/(e.shape[2]||0),d[1]/(e.shape[1]||0),d[2]/A2.meshSize]),o={};if(s.mesh&&s.mesh.length>0)for(let d of Object.keys(rr))o[d]=rr[d].map(p=>s.mesh[p]);let u=s.box?[Math.trunc(Math.max(0,s.box.startPoint[0])),Math.trunc(Math.max(0,s.box.startPoint[1])),Math.trunc(Math.min(e.shape[2]||0,s.box.endPoint[0])-Math.max(0,s.box.startPoint[0])),Math.trunc(Math.min(e.shape[1]||0,s.box.endPoint[1])-Math.max(0,s.box.startPoint[1]))]:[0,0,0,0],l=s.box?[s.box.startPoint[0]/(e.shape[2]||0),s.box.startPoint[1]/(e.shape[1]||0),(s.box.endPoint[0]-s.box.startPoint[0])/(e.shape[2]||0),(s.box.endPoint[1]-s.box.startPoint[1])/(e.shape[1]||0)]:[0,0,0,0];a.push({id:r++,score:Math.round(100*s.faceConfidence||100*s.boxConfidence||0)/100,boxScore:Math.round(100*s.boxConfidence)/100,faceScore:Math.round(100*s.faceConfidence)/100,box:u,boxRaw:l,mesh:s.mesh,meshRaw:i,annotations:o,image:s.image,tensor:s.image}),s.coords&&s.coords.dispose()}return a}async function g2(e){return!Rt[0]&&e.face.enabled||!Rt[1]&&e.face.mesh.enabled||!Rt[2]&&e.face.iris.enabled?(Rt=await Promise.all([!Rt[0]&&e.face.enabled?l9(e):null,!Rt[1]&&e.face.mesh.enabled?ct(ft(e.modelBasePath,e.face.mesh.modelPath),{fromTFHub:e.face.mesh.modelPath.includes("tfhub.dev")}):null,!Rt[2]&&e.face.iris.enabled?ct(ft(e.modelBasePath,e.face.iris.modelPath),{fromTFHub:e.face.iris.modelPath.includes("tfhub.dev")}):null]),e.face.mesh.enabled&&(!Rt[1]||!Rt[1].modelUrl?de("load model failed:",e.face.mesh.modelPath):e.debug&&de("load model:",Rt[1].modelUrl)),e.face.iris.enabled&&(!Rt[2]||!Rt[2].modelUrl?de("load model failed:",e.face.iris.modelPath):e.debug&&de("load model:",Rt[2].modelUrl))):e.debug&&(Rt[0]&&de("cached model:",Rt[0].model.modelUrl),Rt[1]&&de("cached model:",Rt[1].modelUrl),Rt[2]&&de("cached model:",Rt[2].modelUrl)),A2=new m2(Rt[0],Rt[1],Rt[2]),Rt}var p9=Zi,c9=cp;var Sle=["angry","disgust","fear","happy","sad","surprise","neutral"],Pa,G0=[],h9=0,y2=Number.MAX_SAFE_INTEGER,x2=[.2989,.587,.114];async function b2(e){return Pa?e.debug&&de("cached model:",Pa.modelUrl):(Pa=await ct(ft(e.modelBasePath,e.face.emotion.modelPath)),!Pa||!Pa.modelUrl?de("load model failed:",e.face.emotion.modelPath):e.debug&&de("load model:",Pa.modelUrl)),Pa}async function v2(e,t,n,a){return Pa?y2<t.face.emotion.skipFrames&&t.skipFrame&&h9===a&&G0[n]&&G0[n].length>0?(y2++,G0[n]):(y2=0,new Promise(async r=>{let s=_e.resizeBilinear(e,[Pa.inputs[0].shape[2],Pa.inputs[0].shape[1]],!1),[i,o,u]=Kt(s,3,3);s.dispose();let l=B(i,x2[0]),d=B(o,x2[1]),p=B(u,x2[2]);i.dispose(),o.dispose(),u.dispose();let c=jc([l,d,p]);l.dispose(),d.dispose(),p.dispose();let h=V(()=>c.sub(.5).mul(2));c.dispose();let m=[];if(t.face.emotion.enabled){let f=await Pa.predict(h),A=f.dataSync();he(f);for(let g=0;g<A.length;g++)A[g]>t.face.emotion.minConfidence&&m.push({score:Math.min(.99,Math.trunc(100*A[g])/100),emotion:Sle[g]});m.sort((g,y)=>y.score-g.score)}h.dispose(),G0[n]=m,h9=a,r(m)})):null}var La,q0=[],f9=0,w2=Number.MAX_SAFE_INTEGER;async function k2(e){let t=ft(e.modelBasePath,e.face.description.modelPath);return La?e.debug&&de("cached model:",t):(La=await ct(t),La?e.debug&&de("load model:",t):de("load model failed:",e.face.description.modelPath)),La}function I2(e,t,n=2){if(!e||!t||(e==null?void 0:e.length)===0||(t==null?void 0:t.length)===0||(e==null?void 0:e.length)!==(t==null?void 0:t.length))return 0;let a=5*e.map((s,i)=>Math.abs(e[i]-t[i])**n).reduce((s,i)=>s+i,0)**(1/n);return Math.max(0,100-a)/100}function m9(e,t,n=0){let a={similarity:0,name:"",source:"",embedding:[]};if(!e||!t||!Array.isArray(e)||!Array.isArray(t))return a;for(let r of t)if(r.embedding&&r.name){let s=I2(e,r.embedding);s>n&&s>a.similarity&&(a={...r,similarity:s})}return a}function S2(e){return V(()=>{let n=e.image||e.tensor||e;if(!(n instanceof Be))return null;let a=[[.05,.15,.85,.85]];return La.inputs[0].shape?(n.shape.length===3?_e.cropAndResize(fn(n,0),a,[0],[La.inputs[0].shape[2],La.inputs[0].shape[1]]):_e.cropAndResize(n,a,[0],[La.inputs[0].shape[2],La.inputs[0].shape[1]])).mul(255):null})}async function N2(e,t,n,a){var r,s;return La?w2<t.face.description.skipFrames&&t.skipFrame&&f9===a&&((r=q0[n])==null?void 0:r.age)&&((s=q0[n])==null?void 0:s.age)>0?(w2++,q0[n]):(w2=0,new Promise(async i=>{let o=S2(e),u,l={age:0,gender:"unknown",genderScore:0,descriptor:[]};t.face.description.enabled&&(u=await La.predict(o)),he(o),u&&(V(()=>{let d=u.find(f=>f.shape[1]===1).dataSync(),p=Math.trunc(200*Math.abs(d[0]-.5))/100;p>t.face.description.minConfidence&&(l.gender=d[0]<=.5?"female":"male",l.genderScore=Math.min(.99,p));let c=u.find(f=>f.shape[1]===100).argMax(1).dataSync()[0],h=u.find(f=>f.shape[1]===100).dataSync();l.age=Math.round(h[c-1]>h[c+1]?10*c-100*h[c-1]:10*c+100*h[c+1])/10;let m=u.find(f=>f.shape[1]===1024);l.descriptor=[...m.dataSync()]}),u.forEach(d=>he(d))),q0[n]=l,f9=a,i(l)})):null}var Nle=e=>{let t=(p,c)=>Math.atan2(p[1]-c[1],p[0]-c[0]),n=[0,-.1],a=1,r=e.mesh[33][2]>e.mesh[263][2],s=r?e.mesh[473]:e.mesh[468],i=r?[(e.mesh[133][0]+e.mesh[33][0])/2,(e.mesh[133][1]+e.mesh[33][1])/2]:[(e.mesh[263][0]+e.mesh[362][0])/2,(e.mesh[263][1]+e.mesh[362][1])/2],o=r?[e.mesh[133][0]-e.mesh[33][0],e.mesh[23][1]-e.mesh[27][1]]:[e.mesh[263][0]-e.mesh[362][0],e.mesh[253][1]-e.mesh[257][1]],u=[(i[0]-s[0])/o[0]-n[0],a*(s[1]-i[1])/o[1]-n[1]],l=Math.sqrt(u[0]**2+u[1]**2);return l=Math.min(l,e.boxRaw[2]/2,e.boxRaw[3]/2),{bearing:(t([0,0],u)+Math.PI/2)%Math.PI,strength:l}},Tle=(e,t)=>{let n=A=>{let g=Math.sqrt(A[0]*A[0]+A[1]*A[1]+A[2]*A[2]);return A[0]/=g,A[1]/=g,A[2]/=g,A},a=(A,g)=>{let y=A[0]-g[0],x=A[1]-g[1],v=A[2]-g[2];return[y,x,v]},r=(A,g)=>{let y=A[1]*g[2]-A[2]*g[1],x=A[2]*g[0]-A[0]*g[2],v=A[0]*g[1]-A[1]*g[0];return[y,x,v]},s=A=>{let[g,y,x,v,b,w,N,C,E]=A,_,$,S;return v<1?v>-1?(S=Math.asin(v),$=Math.atan2(-N,g),_=Math.atan2(-w,b)):(S=-Math.PI/2,$=-Math.atan2(C,E),_=0):(S=Math.PI/2,$=Math.atan2(C,E),_=0),{pitch:2*-_,yaw:2*-$,roll:2*-S}},i=A=>{let g=(x,v,b,w)=>Math.atan2(w-v,b-x);return{pitch:g(A[10][1],A[10][2],A[152][1],A[152][2]),yaw:g(A[33][0],A[33][2],A[263][0],A[263][2]),roll:g(A[33][0],A[33][1],A[263][0],A[263][1])}},o=e.meshRaw;if(!o||o.length<300)return{angle:{pitch:0,yaw:0,roll:0},matrix:[1,0,0,0,1,0,0,0,1],gaze:{bearing:0,strength:0}};let u=Math.max(e.boxRaw[2]*t[0],e.boxRaw[3]*t[1])/1.5,l=[o[10],o[152],o[234],o[454]].map(A=>[A[0]*t[0]/u,A[1]*t[1]/u,A[2]]),d=n(a(l[1],l[0])),p=n(a(l[3],l[2])),c=n(r(p,d));p=r(d,c);let h=[p[0],p[1],p[2],d[0],d[1],d[2],c[0],c[1],c[2]],m=s(h),f=o.length===478?Nle(e):{bearing:0,strength:0};return{angle:m,matrix:h,gaze:f}},T2=async(e,t)=>{var d,p,c,h,m,f;let n,a,r,s,i,o,u=[];e.state="run:face",n=Je();let l=await d9(t,e.config);if(e.performance.face=Math.trunc(Je()-n),!t.shape||t.shape.length!==4)return[];if(!l)return[];for(let A=0;A<l.length;A++){if(e.analyze("Get Face"),!l[A].image||l[A].image.isDisposedInternal){de("Face object is disposed:",l[A].image);continue}let g=Tle(l[A],[t.shape[2],t.shape[1]]);e.analyze("Start Emotion:"),e.config.async?s=e.config.face.emotion.enabled?v2(l[A].image||on([]),e.config,A,l.length):{}:(e.state="run:emotion",n=Je(),s=e.config.face.emotion.enabled?await v2(l[A].image||on([]),e.config,A,l.length):{},e.performance.emotion=Math.trunc(Je()-n)),e.analyze("End Emotion:"),e.analyze("Start Description:"),e.config.async?o=e.config.face.description.enabled?N2(l[A].image||on([]),e.config,A,l.length):[]:(e.state="run:description",n=Je(),o=e.config.face.description.enabled?await N2(l[A].image||on([]),e.config,A,l.length):[],e.performance.embedding=Math.trunc(Je()-n)),e.analyze("End Description:"),e.config.async&&([a,r,s,i,o]=await Promise.all([a,r,s,i,o])),e.analyze("Finish Face:"),!e.config.face.iris.enabled&&((p=(d=l[A])==null?void 0:d.annotations)==null?void 0:p.leftEyeIris)&&((h=(c=l[A])==null?void 0:c.annotations)==null?void 0:h.rightEyeIris)&&(delete l[A].annotations.leftEyeIris,delete l[A].annotations.rightEyeIris);let y=((m=l[A].annotations)==null?void 0:m.leftEyeIris)&&((f=l[A].annotations)==null?void 0:f.rightEyeIris)?Math.max(Math.abs(l[A].annotations.leftEyeIris[3][0]-l[A].annotations.leftEyeIris[1][0]),Math.abs(l[A].annotations.rightEyeIris[4][1]-l[A].annotations.rightEyeIris[2][1]))/t.shape[2]:0;u.push({...l[A],id:A,age:o.age,gender:o.gender,genderScore:o.genderScore,embedding:o.descriptor,emotion:s,iris:y!==0?Math.trunc(500/y/11.7)/100:0,rotation:g,tensor:e.config.face.detector.return?Hn(l[A].image):null}),he(l[A].image),l[A].image&&delete l[A].image,e.analyze("End Face")}return e.analyze("End FaceMesh:"),e.config.async&&(e.performance.face&&delete e.performance.face,e.performance.age&&delete e.performance.age,e.performance.gender&&delete e.performance.gender,e.performance.emotion&&delete e.performance.emotion),u};var hp=["nose","leftEye","rightEye","leftEar","rightEar","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle"],A9=hp.length,fp=hp.reduce((e,t,n)=>(e[t]=n,e),{}),Cle=[["leftHip","leftShoulder"],["leftElbow","leftShoulder"],["leftElbow","leftWrist"],["leftHip","leftKnee"],["leftKnee","leftAnkle"],["rightHip","rightShoulder"],["rightElbow","rightShoulder"],["rightElbow","rightWrist"],["rightHip","rightKnee"],["rightKnee","rightAnkle"],["leftShoulder","rightShoulder"],["leftHip","rightHip"]],Ele=Cle.map(([e,t])=>[fp[e],fp[t]]),g9=[["nose","leftEye"],["leftEye","leftEar"],["nose","rightEye"],["rightEye","rightEar"],["nose","leftShoulder"],["leftShoulder","leftElbow"],["leftElbow","leftWrist"],["leftShoulder","leftHip"],["leftHip","leftKnee"],["leftKnee","leftAnkle"],["nose","rightShoulder"],["rightShoulder","rightElbow"],["rightElbow","rightWrist"],["rightShoulder","rightHip"],["rightHip","rightKnee"],["rightKnee","rightAnkle"]];function 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_e.nonMaxSuppressionAsync(u,i,n.hand.maxDetected,n.hand.iouThreshold,n.hand.minConfidence),d=l.arraySync();s.dispose(),l.dispose();let p=[];for(let c of d)if(i[c]>=n.hand.minConfidence){let h=Re(u,[c,0],[1,-1]),m=Re(r,[c,5],[1,14]),f=V(()=>this.normalizeLandmarks(m,c).reshape([-1,2]));m.dispose(),p.push({box:h,palmLandmarks:f,confidence:i[c]})}return r.dispose(),u.dispose(),p}async estimateHandBounds(t,n){let a=t.shape[1],r=t.shape[2],s=V(()=>t.resizeBilinear([this.inputSize,this.inputSize]).div(127.5).sub(1)),i=await this.getBoxes(s,n);s.dispose();let o=[];if(!i||i.length===0)return o;for(let u of i){let l=u.box.dataSync(),d=l.slice(0,2),p=l.slice(2,4),c=u.palmLandmarks.arraySync();u.box.dispose(),u.palmLandmarks.dispose(),o.push(S9({startPoint:d,endPoint:p,palmLandmarks:c,confidence:u.confidence},[r/this.inputSize,a/this.inputSize]))}return o}};function zle(e){return e-2*Math.PI*Math.floor((e+Math.PI)/(2*Math.PI))}function T9(e,t){let n=Math.PI/2-Math.atan2(-(t[1]-e[1]),t[0]-e[0]);return zle(n)}var C9=(e,t)=>[[1,0,e],[0,1,t],[0,0,1]];function us(e,t){let n=0;for(let a=0;a<e.length;a++)n+=e[a]*t[a];return n}function _le(e,t){let n=[];for(let a=0;a<e.length;a++)n.push(e[a][t]);return n}function E9(e,t){let n=[],a=e.length;for(let r=0;r<a;r++){n.push([]);for(let s=0;s<a;s++)n[r].push(us(e[r],_le(t,s)))}return n}function z2(e,t){let n=Math.cos(e),a=Math.sin(e),r=[[n,-a,0],[a,n,0],[0,0,1]],s=C9(t[0],t[1]),i=E9(s,r),o=C9(-t[0],-t[1]);return E9(i,o)}function R9(e){let t=[[e[0][0],e[1][0]],[e[0][1],e[1][1]]],n=[e[0][2],e[1][2]],a=[-us(t[0],n),-us(t[1],n)];return[t[0].concat(a[0]),t[1].concat(a[1]),[0,0,1]]}function _2(e,t){return[us(e,t[0]),us(e,t[1])]}var Ple=5,M9=1.65,F9=[0,5,9,13,17,1,2],Lle=0,Wle=2,P2=class{constructor(t,n){var a;this.handDetector=t,this.handPoseModel=n,this.inputSize=(a=this.handPoseModel)==null?void 0:a.inputs[0].shape[2],this.storedBoxes=[],this.skipped=0,this.detectedHands=0}calculateLandmarksBoundingBox(t){let n=t.map(i=>i[0]),a=t.map(i=>i[1]),r=[Math.min(...n),Math.min(...a)],s=[Math.max(...n),Math.max(...a)];return{startPoint:r,endPoint:s}}getBoxForPalmLandmarks(t,n){let a=t.map(s=>_2([...s,1],n)),r=this.calculateLandmarksBoundingBox(a);return Z0(Y0(r),Ple)}getBoxForHandLandmarks(t){let n=this.calculateLandmarksBoundingBox(t),a=Z0(Y0(n),M9);a.palmLandmarks=[];for(let r=0;r<F9.length;r++)a.palmLandmarks.push(t[F9[r]].slice(0,2));return a}transformRawCoords(t,n,a,r){let s=K0(n),i=[s[0]/this.inputSize,s[1]/this.inputSize,(s[0]+s[1])/this.inputSize/2],o=t.map(h=>[i[0]*(h[0]-this.inputSize/2),i[1]*(h[1]-this.inputSize/2),i[2]*h[2]]),u=z2(a,[0,0]),l=o.map(h=>[..._2(h,u),h[2]]),d=R9(r),p=[...mp(n),1],c=[us(p,d[0]),us(p,d[1])];return l.map(h=>[Math.trunc(h[0]+c[0]),Math.trunc(h[1]+c[1]),Math.trunc(h[2])])}async estimateHands(t,n){let a=!1,r;(this.skipped===0||this.skipped>n.hand.skipFrames||!n.hand.landmarks||!n.skipFrame)&&(r=await this.handDetector.estimateHandBounds(t,n),this.skipped=0),n.skipFrame&&this.skipped++,r&&r.length>0&&(r.length!==this.detectedHands&&this.detectedHands!==n.hand.maxDetected||!n.hand.landmarks)&&(this.detectedHands=0,this.storedBoxes=[...r],this.storedBoxes.length>0&&(a=!0));let s=[];for(let i=0;i<this.storedBoxes.length;i++){let o=this.storedBoxes[i];if(!!o)if(n.hand.landmarks){let u=n.hand.rotation?T9(o.palmLandmarks[Lle],o.palmLandmarks[Wle]):0,l=mp(o),d=[l[0]/t.shape[2],l[1]/t.shape[1]],p=n.hand.rotation&&sa.flags.IS_BROWSER?_e.rotateWithOffset(t,u,0,d):t.clone(),c=z2(-u,l),h=a?this.getBoxForPalmLandmarks(o.palmLandmarks,c):o,m=I9(h,p,[this.inputSize,this.inputSize]),f=m.div(255);m.dispose(),p.dispose();let[A,g]=await this.handPoseModel.predict(f);f.dispose();let y=A.dataSync()[0];if(A.dispose(),y>=n.hand.minConfidence){let x=q(g,[-1,3]),v=x.arraySync();g.dispose(),x.dispose();let b=this.transformRawCoords(v,h,u,c),w=this.getBoxForHandLandmarks(b);this.storedBoxes[i]={...w,confidence:y};let N={landmarks:b,confidence:y,box:{topLeft:w.startPoint,bottomRight:w.endPoint}};s.push(N)}else this.storedBoxes[i]=null;g.dispose()}else{let u=Z0(Y0(o),M9),l={confidence:o.confidence,box:{topLeft:u.startPoint,bottomRight:u.endPoint}};s.push(l)}}return this.storedBoxes=this.storedBoxes.filter(i=>i!==null),this.detectedHands=s.length,s}};var $9={thumb:[1,2,3,4],indexFinger:[5,6,7,8],middleFinger:[9,10,11,12],ringFinger:[13,14,15,16],pinky:[17,18,19,20],palmBase:[0]},ds,ps,D9;async function L2(e,t){let n=await D9.estimateHands(e,t);if(!n)return[];let a=[];for(let r=0;r<n.length;r++){let s={};if(n[r].landmarks)for(let l of Object.keys($9))s[l]=$9[l].map(d=>n[r].landmarks[d]);let i=n[r].landmarks,o=[Number.MAX_SAFE_INTEGER,Number.MAX_SAFE_INTEGER,0,0],u=[0,0,0,0];if(i&&i.length>0){for(let l of i)l[0]<o[0]&&(o[0]=l[0]),l[1]<o[1]&&(o[1]=l[1]),l[0]>o[2]&&(o[2]=l[0]),l[1]>o[3]&&(o[3]=l[1]);o[2]-=o[0],o[3]-=o[1],u=[o[0]/(e.shape[2]||0),o[1]/(e.shape[1]||0),o[2]/(e.shape[2]||0),o[3]/(e.shape[1]||0)]}else o=n[r].box?[Math.trunc(Math.max(0,n[r].box.topLeft[0])),Math.trunc(Math.max(0,n[r].box.topLeft[1])),Math.trunc(Math.min(e.shape[2]||0,n[r].box.bottomRight[0])-Math.max(0,n[r].box.topLeft[0])),Math.trunc(Math.min(e.shape[1]||0,n[r].box.bottomRight[1])-Math.max(0,n[r].box.topLeft[1]))]:[0,0,0,0],u=[n[r].box.topLeft[0]/(e.shape[2]||0),n[r].box.topLeft[1]/(e.shape[1]||0),(n[r].box.bottomRight[0]-n[r].box.topLeft[0])/(e.shape[2]||0),(n[r].box.bottomRight[1]-n[r].box.topLeft[1])/(e.shape[1]||0)];a.push({id:r,score:Math.round(100*n[r].confidence)/100,box:o,boxRaw:u,keypoints:i,annotations:s})}return a}async function W2(e){!ds||!ps?([ds,ps]=await Promise.all([e.hand.enabled?ct(ft(e.modelBasePath,e.hand.detector.modelPath),{fromTFHub:e.hand.detector.modelPath.includes("tfhub.dev")}):null,e.hand.landmarks?ct(ft(e.modelBasePath,e.hand.skeleton.modelPath),{fromTFHub:e.hand.skeleton.modelPath.includes("tfhub.dev")}):null]),e.hand.enabled&&(!ds||!ds.modelUrl?de("load model failed:",e.hand.detector.modelPath):e.debug&&de("load model:",ds.modelUrl),!ps||!ps.modelUrl?de("load model failed:",e.hand.skeleton.modelPath):e.debug&&de("load model:",ps.modelUrl))):(e.debug&&de("cached model:",ds.modelUrl),e.debug&&de("cached model:",ps.modelUrl));let t=new O2(ds);return D9=new P2(t,ps),[ds,ps]}var O9=["nose","leftEyeInside","leftEye","leftEyeOutside","rightEyeInside","rightEye","rightEyeOutside","leftEar","rightEar","leftMouth","rightMouth","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftPalm","rightPalm","leftIndex","rightIndex","leftPinky","rightPinky","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle","leftHeel","rightHeel","leftFoot","rightFoot","midHip","forehead","leftThumb","leftHand","rightThumb","rightHand"],z9=["nose","leftEyeInside","leftEye","leftEyeOutside","rightEyeInside","rightEye","rightEyeOutside","leftEar","rightEar","leftMouth","rightMouth","leftShoulder","rightShoulder","leftElbow","rightElbow","left:15","right:16","left:17","right:18","left:19","right:20","left:21","right:22","leftChest","rightChest","neck","forehead","left:27","right:28","left:29","right:30"];var On;async function J0(e){return On?e.debug&&de("cached model:",On.modelUrl):(On=await ct(ft(e.modelBasePath,e.body.modelPath)),On.width=parseInt(On.signature.inputs["input_1:0"].tensorShape.dim[2].size),On.height=parseInt(On.signature.inputs["input_1:0"].tensorShape.dim[1].size),!On||!On.modelUrl?de("load model failed:",e.body.modelPath):e.debug&&de("load model:",On.modelUrl)),On}async function B2(e,t){var f;if(!On)return[];if(!t.body.enabled)return[];let n={width:e.shape[2]||0,height:e.shape[1]||0},a=_e.resizeBilinear(e,[On.width,On.height],!1),r=me(a,[255]);a.dispose();let s=await On.predict(r),i=((f=s.find(A=>A.size===195||A.size===155))==null?void 0:f.dataSync())||[];s.forEach(A=>A.dispose()),r.dispose();let o=[],u=(i==null?void 0:i.length)===195?O9:z9,l=5;for(let A=0;A<i.length/l;A++)o.push({id:A,part:u[A],position:[Math.trunc(n.width*i[l*A+0]/255),Math.trunc(n.height*i[l*A+1]/255),Math.trunc(i[l*A+2])+0],positionRaw:[i[l*A+0]/255,i[l*A+1]/255,i[l*A+2]+0],score:(100-Math.trunc(100/(1+Math.exp(i[l*A+3]))))/100,presence:(100-Math.trunc(100/(1+Math.exp(i[l*A+4]))))/100});let d=o.map(A=>A.position[0]),p=o.map(A=>A.position[1]),c=[Math.min(...d),Math.min(...p),Math.max(...d)-Math.min(...d),Math.max(...p)-Math.min(...d)],h=[0,0,0,0],m=o.reduce((A,g)=>g.score>A?g.score:A,0);return[{id:0,score:m,box:c,boxRaw:h,keypoints:o}]}var zn,sr=[],V2=[0,0,0,0],j2=[0,0,0,0],Q0=0,U2=Number.MAX_SAFE_INTEGER,Ble=["head","neck","rightShoulder","rightElbow","rightWrist","chest","leftShoulder","leftElbow","leftWrist","pelvis","rightHip","rightKnee","rightAnkle","leftHip","leftKnee","leftAnkle"];async function _9(e){return zn?e.debug&&de("cached model:",zn.modelUrl):(zn=await ct(ft(e.modelBasePath,e.body.modelPath)),!zn||!zn.modelUrl?de("load model failed:",e.body.modelPath):e.debug&&de("load model:",zn.modelUrl)),zn}function Vle(e,t){let[n,a]=e.shape;return V(()=>{let r=(o,u)=>ge(o,B(me(o,ke(u,"int32")),ke(u,"int32"))),s=q(e,[a*n]),i=Bn(s,0).dataSync()[0];if(i>t){let o=ki(s,0),u=r(o,n).dataSync()[0],l=me(o,ke(n,"int32")).dataSync()[0];return[u,l,i]}return[0,0,i]})}async function H2(e,t){return U2<t.body.skipFrames&&t.skipFrame&&Object.keys(sr).length>0?(U2++,[{id:0,score:Q0,box:V2,boxRaw:j2,keypoints:sr}]):(U2=0,new Promise(async n=>{let a=V(()=>{if(!zn.inputs[0].shape)return null;let l=_e.resizeBilinear(e,[zn.inputs[0].shape[2],zn.inputs[0].shape[1]],!1);return B(l,2).sub(1)}),r;if(t.body.enabled&&(r=await zn.predict(a)),a.dispose(),r){sr.length=0;let l=r.squeeze();he(r);let d=l.unstack(2);he(l);for(let p=0;p<d.length;p++){let[c,h,m]=Vle(d[p],t.body.minConfidence);Q0>t.body.minConfidence&&sr.push({score:Math.round(100*m)/100,part:Ble[p],positionRaw:[c/zn.inputs[0].shape[2],h/zn.inputs[0].shape[1]],position:[Math.round(e.shape[2]*c/zn.inputs[0].shape[2]),Math.round(e.shape[1]*h/zn.inputs[0].shape[1])]})}d.forEach(p=>he(p))}Q0=sr.reduce((l,d)=>d.score>l?d.score:l,0);let s=sr.map(l=>l.position[0]),i=sr.map(l=>l.position[1]);V2=[Math.min(...s),Math.min(...i),Math.max(...s)-Math.min(...s),Math.max(...i)-Math.min(...i)];let o=sr.map(l=>l.positionRaw[0]),u=sr.map(l=>l.positionRaw[1]);j2=[Math.min(...o),Math.min(...u),Math.max(...o)-Math.min(...o),Math.max(...u)-Math.min(...u)],n([{id:0,score:Q0,box:V2,boxRaw:j2,keypoints:sr}])}))}var Wa,ir=[],G2=[0,0,0,0],q2=[0,0,0,0],cu=0,X2=Number.MAX_SAFE_INTEGER,jle=["nose","leftEye","rightEye","leftEar","rightEar","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle"];async function K2(e){return Wa?e.debug&&de("cached model:",Wa.modelUrl):(Wa=await ct(ft(e.modelBasePath,e.body.modelPath)),!Wa||!Wa.modelUrl?de("load model failed:",e.body.modelPath):e.debug&&de("load model:",Wa.modelUrl)),Wa}async function Z2(e,t){return X2<t.body.skipFrames&&t.skipFrame&&Object.keys(ir).length>0?(X2++,[{id:0,score:cu,box:G2,boxRaw:q2,keypoints:ir}]):(X2=0,new Promise(async n=>{let a=V(()=>{if(!Wa.inputs[0].shape)return null;let l=_e.resizeBilinear(e,[Wa.inputs[0].shape[2],Wa.inputs[0].shape[1]],!1);return Ae(l,"int32")}),r;if(t.body.enabled&&(r=await Wa.predict(a)),a.dispose(),r){ir.length=0;let l=r.arraySync();he(r);let d=l[0][0];for(let p=0;p<d.length;p++)cu=d[p][2],cu>t.body.minConfidence&&ir.push({score:Math.round(100*cu)/100,part:jle[p],positionRaw:[d[p][1],d[p][0]],position:[Math.round((e.shape[2]||0)*d[p][1]),Math.round((e.shape[1]||0)*d[p][0])]})}cu=ir.reduce((l,d)=>d.score>l?d.score:l,0);let s=ir.map(l=>l.position[0]),i=ir.map(l=>l.position[1]);G2=[Math.min(...s),Math.min(...i),Math.max(...s)-Math.min(...s),Math.max(...i)-Math.min(...i)];let o=ir.map(l=>l.positionRaw[0]),u=ir.map(l=>l.positionRaw[1]);q2=[Math.min(...o),Math.min(...u),Math.max(...o)-Math.min(...o),Math.max(...u)-Math.min(...u)],n([{id:0,score:cu,box:G2,boxRaw:q2,keypoints:ir}])}))}var hu=[{class:1,label:"person"},{class:2,label:"bicycle"},{class:3,label:"car"},{class:4,label:"motorcycle"},{class:5,label:"airplane"},{class:6,label:"bus"},{class:7,label:"train"},{class:8,label:"truck"},{class:9,label:"boat"},{class:10,label:"traffic light"},{class:11,label:"fire hydrant"},{class:12,label:"stop sign"},{class:13,label:"parking meter"},{class:14,label:"bench"},{class:15,label:"bird"},{class:16,label:"cat"},{class:17,label:"dog"},{class:18,label:"horse"},{class:19,label:"sheep"},{class:20,label:"cow"},{class:21,label:"elephant"},{class:22,label:"bear"},{class:23,label:"zebra"},{class:24,label:"giraffe"},{class:25,label:"backpack"},{class:26,label:"umbrella"},{class:27,label:"handbag"},{class:28,label:"tie"},{class:29,label:"suitcase"},{class:30,label:"frisbee"},{class:31,label:"skis"},{class:32,label:"snowboard"},{class:33,label:"sports ball"},{class:34,label:"kite"},{class:35,label:"baseball bat"},{class:36,label:"baseball glove"},{class:37,label:"skateboard"},{class:38,label:"surfboard"},{class:39,label:"tennis racket"},{class:40,label:"bottle"},{class:41,label:"wine glass"},{class:42,label:"cup"},{class:43,label:"fork"},{class:44,label:"knife"},{class:45,label:"spoon"},{class:46,label:"bowl"},{class:47,label:"banana"},{class:48,label:"apple"},{class:49,label:"sandwich"},{class:50,label:"orange"},{class:51,label:"broccoli"},{class:52,label:"carrot"},{class:53,label:"hot dog"},{class:54,label:"pizza"},{class:55,label:"donut"},{class:56,label:"cake"},{class:57,label:"chair"},{class:58,label:"couch"},{class:59,label:"potted plant"},{class:60,label:"bed"},{class:61,label:"dining table"},{class:62,label:"toilet"},{class:63,label:"tv"},{class:64,label:"laptop"},{class:65,label:"mouse"},{class:66,label:"remote"},{class:67,label:"keyboard"},{class:68,label:"cell phone"},{class:69,label:"microwave"},{class:70,label:"oven"},{class:71,label:"toaster"},{class:72,label:"sink"},{class:73,label:"refrigerator"},{class:74,label:"book"},{class:75,label:"clock"},{class:76,label:"vase"},{class:77,label:"scissors"},{class:78,label:"teddy bear"},{class:79,label:"hair drier"},{class:80,label:"toothbrush"}];var Qn,Y2=[],J2=Number.MAX_SAFE_INTEGER,ef=2.5;async function Q2(e){if(Qn)e.debug&&de("cached model:",Qn.modelUrl);else{Qn=await ct(ft(e.modelBasePath,e.object.modelPath));let t=Object.values(Qn.modelSignature.inputs);if(Qn.inputSize=Array.isArray(t)?parseInt(t[0].tensorShape.dim[2].size):null,!Qn.inputSize)throw new Error(`Human: Cannot determine model inputSize: ${e.object.modelPath}`);!Qn||!Qn.modelUrl?de("load model failed:",e.object.modelPath):e.debug&&de("load model:",Qn.modelUrl)}return Qn}async function Ule(e,t,n,a){let r=0,s=[];for(let l of[1,2,4])V(()=>{var A,g;let d=l*13,p=(A=e.find(y=>y.shape[1]===d**2&&y.shape[2]===hu.length))==null?void 0:A.squeeze(),c=(g=e.find(y=>y.shape[1]===d**2&&y.shape[2]<hu.length))==null?void 0:g.squeeze(),m=c.reshape([-1,4,c.shape[1]/4]).argMax(2).arraySync(),f=p.arraySync();for(let y=0;y<p.shape[0];y++)for(let x=0;x<p.shape[1];x++){let v=f[y][x];if(v>a.object.minConfidence&&x!==61){let 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`)}var tf=2048,Ee,wt,_t;function fu(e,t){let n;if(!e)throw new Error("Human: Input is missing");if(!(e instanceof Be)&&!(typeof Image!="undefined"&&e instanceof Image)&&!(typeof ImageData!="undefined"&&e instanceof ImageData)&&!(typeof ImageBitmap!="undefined"&&e instanceof ImageBitmap)&&!(typeof HTMLImageElement!="undefined"&&e instanceof HTMLImageElement)&&!(typeof HTMLMediaElement!="undefined"&&e instanceof HTMLMediaElement)&&!(typeof HTMLVideoElement!="undefined"&&e instanceof HTMLVideoElement)&&!(typeof HTMLCanvasElement!="undefined"&&e instanceof HTMLCanvasElement)&&!(typeof OffscreenCanvas!="undefined"&&e instanceof OffscreenCanvas))throw new Error("Human: Input type is not recognized");if(e instanceof Be)if(e.shape&&e.shape.length===4&&e.shape[0]===1&&e.shape[3]===3)n=Ha(e);else throw new Error(`Human: Input tensor shape must be [1, height, width, 3] and instead was ${e.shape}`);else{let r=e.naturalWidth||e.videoWidth||e.width||e.shape&&e.shape[1]>0,s=e.naturalHeight||e.videoHeight||e.height||e.shape&&e.shape[2]>0;if(!r||!s)return{tensor:null,canvas:Ee};let i=r,o=s;if(i>tf&&(i=tf,o=i*s/r),o>tf&&(o=tf,i=o*r/s),t.filter.width>0?i=t.filter.width:t.filter.height>0&&(i=r*(t.filter.height/s)),t.filter.height>0?o=t.filter.height:t.filter.width>0&&(o=s*(t.filter.width/r)),!i||!o)throw new Error("Human: Input cannot determine dimension");(!Ee||(Ee==null?void 0:Ee.width)!==i||(Ee==null?void 0:Ee.height)!==o)&&(Ee=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(i,o):document.createElement("canvas"),(Ee==null?void 0:Ee.width)!==i&&(Ee.width=i),(Ee==null?void 0:Ee.height)!==o&&(Ee.height=o));let u=Ee.getContext("2d");if(e instanceof ImageData?u.putImageData(e,0,0):t.filter.flip&&typeof u.translate!="undefined"?(u.translate(r,0),u.scale(-1,1),u.drawImage(e,0,0,r,s,0,0,Ee==null?void 0:Ee.width,Ee==null?void 0:Ee.height),u.setTransform(1,0,0,1,0,0)):u.drawImage(e,0,0,r,s,0,0,Ee==null?void 0:Ee.width,Ee==null?void 0:Ee.height),t.filter.enabled){if((!_t||!wt||Ee.width!==wt.width||(Ee==null?void 0:Ee.height)!==(wt==null?void 0:wt.height))&&(wt=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(Ee==null?void 0:Ee.width,Ee==null?void 0:Ee.height):document.createElement("canvas"),(wt==null?void 0:wt.width)!==(Ee==null?void 0:Ee.width)&&(wt.width=Ee==null?void 0:Ee.width),(wt==null?void 0:wt.height)!==(Ee==null?void 0:Ee.height)&&(wt.height=Ee==null?void 0:Ee.height),_t=sa.flags.IS_BROWSER?new V9({canvas:wt}):null),!_t)return{tensor:null,canvas:Ee};_t.reset(),_t.addFilter("brightness",t.filter.brightness),t.filter.contrast!==0&&_t.addFilter("contrast",t.filter.contrast),t.filter.sharpness!==0&&_t.addFilter("sharpen",t.filter.sharpness),t.filter.blur!==0&&_t.addFilter("blur",t.filter.blur),t.filter.saturation!==0&&_t.addFilter("saturation",t.filter.saturation),t.filter.hue!==0&&_t.addFilter("hue",t.filter.hue),t.filter.negative&&_t.addFilter("negative"),t.filter.sepia&&_t.addFilter("sepia"),t.filter.vintage&&_t.addFilter("brownie"),t.filter.sepia&&_t.addFilter("sepia"),t.filter.kodachrome&&_t.addFilter("kodachrome"),t.filter.technicolor&&_t.addFilter("technicolor"),t.filter.polaroid&&_t.addFilter("polaroid"),t.filter.pixelate!==0&&_t.addFilter("pixelate",t.filter.pixelate),_t.apply(Ee)}else wt=Ee,_t&&(_t=null);let l;if(wt.data){let d=[wt.height,wt.width,3];l=Lc(wt.data,d,"int32")}else if(wt instanceof ImageData)l=oa?oa.fromPixels(wt):null;else if(t.backend==="webgl"||t.backend==="humangl"){let d=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(i,o):document.createElement("canvas");d.width=i,d.height=o;let p=d.getContext("2d");p==null||p.drawImage(wt,0,0),l=oa?oa.fromPixels(d):null}else{let d=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(i,o):document.createElement("canvas");d.width=i,d.height=o;let p=d.getContext("2d");p==null||p.drawImage(wt,0,0);let c=p==null?void 0:p.getImageData(0,0,i,o);l=oa?oa.fromPixels(c):null}if(l){let d=l.toFloat();n=d.expandDims(0),l.dispose(),d.dispose()}}let a=t.filter.return?wt:null;return{tensor:n,canvas:a}}var o5={};_m(o5,{all:()=>Kle,body:()=>H9,canvas:()=>Xle,face:()=>U9,gesture:()=>j9,hand:()=>G9,object:()=>q9,options:()=>cs,person:()=>qle});var cs={color:"rgba(173, 216, 230, 0.6)",labelColor:"rgba(173, 216, 230, 1)",shadowColor:"black",font:'small-caps 14px "Segoe UI"',lineHeight:24,lineWidth:6,pointSize:2,roundRect:28,drawPoints:!1,drawLabels:!0,drawBoxes:!0,drawPolygons:!0,drawGaze:!0,fillPolygons:!1,useDepth:!0,useCurves:!1,bufferedOutput:!0},nf=e=>Math.round(e*180/Math.PI);function s5(e,t,n,a=0,r){e.fillStyle=r.useDepth&&a?`rgba(${127.5+2*a}, ${127.5-2*a}, 255, 0.3)`:r.color,e.beginPath(),e.arc(t,n,r.pointSize,0,2*Math.PI),e.fill()}function Ap(e,t,n,a,r,s){if(e.beginPath(),s.useCurves){let i=(t+t+a)/2,o=(n+n+r)/2;e.ellipse(i,o,a/2,r/2,0,0,2*Math.PI)}else e.lineWidth=s.lineWidth,e.moveTo(t+s.roundRect,n),e.lineTo(t+a-s.roundRect,n),e.quadraticCurveTo(t+a,n,t+a,n+s.roundRect),e.lineTo(t+a,n+r-s.roundRect),e.quadraticCurveTo(t+a,n+r,t+a-s.roundRect,n+r),e.lineTo(t+s.roundRect,n+r),e.quadraticCurveTo(t,n+r,t,n+r-s.roundRect),e.lineTo(t,n+s.roundRect),e.quadraticCurveTo(t,n,t+s.roundRect,n),e.closePath();e.stroke()}function i5(e,t=[],n){if(!(t===void 0||t.length===0)){e.beginPath(),e.moveTo(t[0][0],t[0][1]);for(let a of t){let r=a[2]||0;e.strokeStyle=n.useDepth&&r?`rgba(${127.5+2*r}, ${127.5-2*r}, 255, 0.3)`:n.color,e.fillStyle=n.useDepth&&r?`rgba(${127.5+2*r}, ${127.5-2*r}, 255, 0.3)`:n.color,e.lineTo(a[0],Math.round(a[1]))}e.stroke(),n.fillPolygons&&(e.closePath(),e.fill())}}function gp(e,t=[],n){if(!(t===void 0||t.length===0)){if(!n.useCurves||t.length<=2){i5(e,t,n);return}e.moveTo(t[0][0],t[0][1]);for(let a=0;a<t.length-2;a++){let r=(t[a][0]+t[a+1][0])/2,s=(t[a][1]+t[a+1][1])/2;e.quadraticCurveTo(t[a][0],t[a][1],r,s)}e.quadraticCurveTo(t[t.length-2][0],t[t.length-2][1],t[t.length-1][0],t[t.length-1][1]),e.stroke(),n.fillPolygons&&(e.closePath(),e.fill())}}async function j9(e,t,n){let a=Pn(cs,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let r=e.getContext("2d");if(!r)return;r.font=a.font,r.fillStyle=a.color;let s=1;for(let i=0;i<t.length;i++){let o=[],u=[];if([o,u]=Object.entries(t[i]),u.length>1&&u[1].length>0){let l=o[1]>0?`#${o[1]}`:"",d=`${o[0]} ${l}: 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pitch:${nf(l.rotation.angle.pitch)}\xB0`),l.rotation.gaze.bearing&&d.push(`gaze: ${nf(l.rotation.gaze.bearing)}\xB0`)),d.length===0&&d.push("face"),r.fillStyle=a.color;for(let p=d.length-1;p>=0;p--){let c=Math.max(l.box[0],0),h=p*a.lineHeight+l.box[1];a.shadowColor&&a.shadowColor!==""&&(r.fillStyle=a.shadowColor,r.fillText(d[p],c+5,h+16)),r.fillStyle=a.labelColor,r.fillText(d[p],c+4,h+15)}if(r.lineWidth=1,l.mesh&&l.mesh.length>0){if(a.drawPoints)for(let p of l.mesh)s5(r,p[0],p[1],p[2],a);if(a.drawPolygons){r.lineWidth=1;for(let p=0;p<Zi.length/3;p++){let c=[Zi[p*3+0],Zi[p*3+1],Zi[p*3+2]].map(h=>l.mesh[h]);i5(r,c,a)}if(l.annotations&&l.annotations.leftEyeIris){r.strokeStyle=a.useDepth?"rgba(255, 200, 255, 0.3)":a.color,r.beginPath();let p=Math.abs(l.annotations.leftEyeIris[3][0]-l.annotations.leftEyeIris[1][0])/2,c=Math.abs(l.annotations.leftEyeIris[4][1]-l.annotations.leftEyeIris[2][1])/2;r.ellipse(l.annotations.leftEyeIris[0][0],l.annotations.leftEyeIris[0][1],p,c,0,0,2*Math.PI),r.stroke(),a.fillPolygons&&(r.fillStyle=a.useDepth?"rgba(255, 255, 200, 0.3)":a.color,r.fill())}if(l.annotations&&l.annotations.rightEyeIris){r.strokeStyle=a.useDepth?"rgba(255, 200, 255, 0.3)":a.color,r.beginPath();let p=Math.abs(l.annotations.rightEyeIris[3][0]-l.annotations.rightEyeIris[1][0])/2,c=Math.abs(l.annotations.rightEyeIris[4][1]-l.annotations.rightEyeIris[2][1])/2;r.ellipse(l.annotations.rightEyeIris[0][0],l.annotations.rightEyeIris[0][1],p,c,0,0,2*Math.PI),r.stroke(),a.fillPolygons&&(r.fillStyle=a.useDepth?"rgba(255, 255, 200, 0.3)":a.color,r.fill())}if(a.drawGaze&&((i=(s=l.rotation)==null?void 0:s.gaze)==null?void 0:i.strength)&&((u=(o=l.rotation)==null?void 0:o.gaze)==null?void 0:u.bearing)){r.strokeStyle="pink",r.beginPath();let p=[l.annotations.leftEyeIris[0][0]+Math.sin(l.rotation.gaze.bearing)*l.rotation.gaze.strength*l.box[3],l.annotations.leftEyeIris[0][1]+Math.cos(l.rotation.gaze.bearing)*l.rotation.gaze.strength*l.box[2]];r.moveTo(l.annotations.leftEyeIris[0][0],l.annotations.leftEyeIris[0][1]),r.lineTo(p[0],p[1]);let c=[l.annotations.rightEyeIris[0][0]+Math.sin(l.rotation.gaze.bearing)*l.rotation.gaze.strength*l.box[3],l.annotations.rightEyeIris[0][1]+Math.cos(l.rotation.gaze.bearing)*l.rotation.gaze.strength*l.box[2]];r.moveTo(l.annotations.rightEyeIris[0][0],l.annotations.rightEyeIris[0][1]),r.lineTo(c[0],c[1]),r.stroke()}}}}}async function H9(e,t,n){var s;let a=Pn(cs,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let r=e.getContext("2d");if(!!r){r.lineJoin="round";for(let i=0;i<t.length;i++){if(r.strokeStyle=a.color,r.fillStyle=a.color,r.lineWidth=a.lineWidth,r.font=a.font,a.drawBoxes&&t[i].box&&((s=t[i].box)==null?void 0:s.length)===4&&(Ap(r,t[i].box[0],t[i].box[1],t[i].box[2],t[i].box[3],a),a.drawLabels&&(a.shadowColor&&a.shadowColor!==""&&(r.fillStyle=a.shadowColor,r.fillText(`body ${100*t[i].score}%`,t[i].box[0]+3,1+t[i].box[1]+a.lineHeight,t[i].box[2])),r.fillStyle=a.labelColor,r.fillText(`body ${100*t[i].score}%`,t[i].box[0]+2,0+t[i].box[1]+a.lineHeight,t[i].box[2]))),a.drawPoints)for(let o=0;o<t[i].keypoints.length;o++)r.fillStyle=a.useDepth&&t[i].keypoints[o].position[2]?`rgba(${127.5+2*(t[i].keypoints[o].position[2]||0)}, ${127.5-2*(t[i].keypoints[o].position[2]||0)}, 255, 0.5)`:a.color,s5(r,t[i].keypoints[o].position[0],t[i].keypoints[o].position[1],0,a);if(a.drawLabels&&(r.font=a.font,t[i].keypoints))for(let o of t[i].keypoints)r.fillStyle=a.useDepth&&o.position[2]?`rgba(${127.5+2*o.position[2]}, ${127.5-2*o.position[2]}, 255, 0.5)`:a.color,r.fillText(`${o.part} ${Math.trunc(100*o.score)}%`,o.position[0]+4,o.position[1]+4);if(a.drawPolygons&&t[i].keypoints){let o,u=[];u.length=0,o=t[i].keypoints.find(l=>l.part==="leftShoulder"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightShoulder"),o&&u.push([o.position[0],o.position[1]]),gp(r,u,a),u.length=0,o=t[i].keypoints.find(l=>l.part==="rightShoulder"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightHip"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftHip"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftShoulder"),o&&u.push([o.position[0],o.position[1]]),u.length===4&&i5(r,u,a),u.length=0,o=t[i].keypoints.find(l=>l.part==="leftHip"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftKnee"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftAnkle"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftHeel"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftFoot"),o&&u.push([o.position[0],o.position[1]]),gp(r,u,a),u.length=0,o=t[i].keypoints.find(l=>l.part==="rightHip"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightKnee"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightAnkle"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightHeel"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightFoot"),o&&u.push([o.position[0],o.position[1]]),gp(r,u,a),u.length=0,o=t[i].keypoints.find(l=>l.part==="leftShoulder"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftElbow"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftWrist"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="leftPalm"),o&&u.push([o.position[0],o.position[1]]),gp(r,u,a),u.length=0,o=t[i].keypoints.find(l=>l.part==="rightShoulder"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightElbow"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightWrist"),o&&u.push([o.position[0],o.position[1]]),o=t[i].keypoints.find(l=>l.part==="rightPalm"),o&&u.push([o.position[0],o.position[1]]),gp(r,u,a)}}}}async function G9(e,t,n){let a=Pn(cs,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let r=e.getContext("2d");if(!!r){r.lineJoin="round",r.font=a.font;for(let s of t){if(a.drawBoxes&&(r.strokeStyle=a.color,r.fillStyle=a.color,Ap(r,s.box[0],s.box[1],s.box[2],s.box[3],a),a.drawLabels&&(a.shadowColor&&a.shadowColor!==""&&(r.fillStyle=a.shadowColor,r.fillText("hand",s.box[0]+3,1+s.box[1]+a.lineHeight,s.box[2])),r.fillStyle=a.labelColor,r.fillText("hand",s.box[0]+2,0+s.box[1]+a.lineHeight,s.box[2])),r.stroke()),a.drawPoints&&s.keypoints&&s.keypoints.length>0)for(let i of s.keypoints)r.fillStyle=a.useDepth?`rgba(${127.5+2*i[2]}, ${127.5-2*i[2]}, 255, 0.5)`:a.color,s5(r,i[0],i[1],0,a);if(a.drawLabels){let i=(o,u)=>{r.fillStyle=a.useDepth?`rgba(${127.5+2*o[o.length-1][2]}, ${127.5-2*o[o.length-1][2]}, 255, 0.5)`:a.color,r.fillText(u,o[o.length-1][0]+4,o[o.length-1][1]+4)};r.font=a.font,i(s.annotations.indexFinger,"index"),i(s.annotations.middleFinger,"middle"),i(s.annotations.ringFinger,"ring"),i(s.annotations.pinky,"pinky"),i(s.annotations.thumb,"thumb"),i(s.annotations.palmBase,"palm")}if(a.drawPolygons){let i=o=>{if(!!o)for(let u=0;u<o.length;u++)r.beginPath(),r.strokeStyle=a.useDepth?`rgba(${127.5+2*o[u][2]}, ${127.5-2*o[u][2]}, 255, 0.5)`:a.color,r.moveTo(o[u>0?u-1:0][0],o[u>0?u-1:0][1]),r.lineTo(o[u][0],o[u][1]),r.stroke()};r.lineWidth=a.lineWidth,i(s.annotations.indexFinger),i(s.annotations.middleFinger),i(s.annotations.ringFinger),i(s.annotations.pinky),i(s.annotations.thumb)}}}}async function q9(e,t,n){let a=Pn(cs,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let r=e.getContext("2d");if(!!r){r.lineJoin="round",r.font=a.font;for(let s of t)if(a.drawBoxes){if(r.strokeStyle=a.color,r.fillStyle=a.color,Ap(r,s.box[0],s.box[1],s.box[2],s.box[3],a),a.drawLabels){let i=`${Math.round(100*s.score)}% ${s.label}`;a.shadowColor&&a.shadowColor!==""&&(r.fillStyle=a.shadowColor,r.fillText(i,s.box[0]+3,1+s.box[1]+a.lineHeight,s.box[2])),r.fillStyle=a.labelColor,r.fillText(i,s.box[0]+2,0+s.box[1]+a.lineHeight,s.box[2])}r.stroke()}}}async function qle(e,t,n){let a=Pn(cs,n);if(!t||!e||!(e instanceof HTMLCanvasElement))return;let r=e.getContext("2d");if(!!r){r.lineJoin="round",r.font=a.font;for(let s=0;s<t.length;s++)if(a.drawBoxes){if(r.strokeStyle=a.color,r.fillStyle=a.color,Ap(r,t[s].box[0],t[s].box[1],t[s].box[2],t[s].box[3],a),a.drawLabels){let i=`person #${s}`;a.shadowColor&&a.shadowColor!==""&&(r.fillStyle=a.shadowColor,r.fillText(i,t[s].box[0]+3,1+t[s].box[1]+a.lineHeight,t[s].box[2])),r.fillStyle=a.labelColor,r.fillText(i,t[s].box[0]+2,0+t[s].box[1]+a.lineHeight,t[s].box[2])}r.stroke()}}}async function Xle(e,t){if(!e||!t||!(e instanceof HTMLCanvasElement)||!(t instanceof HTMLCanvasElement))return;let n=e.getContext("2d");n==null||n.drawImage(e,0,0)}async function Kle(e,t,n){let a=Je(),r=Pn(cs,n);!t||!e||e instanceof HTMLCanvasElement&&(U9(e,t.face,r),H9(e,t.body,r),G9(e,t.hand,r),q9(e,t.object,r),j9(e,t.gesture,r),t.performance.draw=Math.trunc(Je()-a))}function X9(e,t,n,a,r){var o,u,l,d,p,c,h,m,f,A,g,y,x,v,b,w;let s=0,i=[];for(let N of e){let C={id:s++,face:N,body:null,hands:{left:null,right:null},gestures:[],box:[0,0,0,0]};for(let O of t)N.box[0]>O.box[0]&&N.box[0]<O.box[0]+O.box[2]&&N.box[1]+N.box[3]>O.box[1]&&N.box[1]+N.box[3]<O.box[1]+O.box[3]&&(C.body=O);if(C.body)for(let O of n)O.box[0]+O.box[2]>C.body.box[0]&&O.box[0]+O.box[2]<C.body.box[0]+C.body.box[2]&&O.box[1]+O.box[3]>C.body.box[1]&&O.box[1]+O.box[3]<C.body.box[1]+C.body.box[3]&&C.hands&&(C.hands.left=O),O.box[0]<C.body.box[0]+C.body.box[2]&&O.box[0]>C.body.box[0]&&O.box[1]+O.box[3]>C.body.box[1]&&O.box[1]+O.box[3]<C.body.box[1]+C.body.box[3]&&C.hands&&(C.hands.right=O);for(let O of a)O.face!==void 0&&O.face===N.id?(o=C.gestures)==null||o.push(O):O.iris!==void 0&&O.iris===N.id?(u=C.gestures)==null||u.push(O):O.body!==void 0&&O.body===((l=C.body)==null?void 0:l.id)?(d=C.gestures)==null||d.push(O):O.hand!==void 0&&O.hand===((c=(p=C.hands)==null?void 0:p.left)==null?void 0:c.id)?(h=C.gestures)==null||h.push(O):O.hand!==void 0&&O.hand===((f=(m=C.hands)==null?void 0:m.right)==null?void 0:f.id)&&((A=C.gestures)==null||A.push(O));let E=[],_=[],$=O=>{O&&O.length===4&&(E.push(O[0],O[0]+O[2]),_.push(O[1],O[1]+O[3]))};$((g=C.face)==null?void 0:g.box),$((y=C.body)==null?void 0:y.box),$((v=(x=C.hands)==null?void 0:x.left)==null?void 0:v.box),$((w=(b=C.hands)==null?void 0:b.right)==null?void 0:w.box);let S=Math.min(...E),z=Math.min(..._);C.box=[S,z,Math.max(...E)-S,Math.max(..._)-z],r&&r.length===4&&(C.boxRaw=[C.box[0]/r[2],C.box[1]/r[1],C.box[2]/r[2],C.box[3]/r[1]]),i.push(C)}return i}var $e={face:[],body:[],hand:[],gesture:[],object:[],persons:[],performance:{},timestamp:0};function K9(e){var r,s,i,o,u,l,d,p,c,h,m,f,A,g,y,x,v,b,w,N,C;let t=Date.now()-e.timestamp,n=t<1e3?8-Math.log(t):1;if($e.canvas=e.canvas,!$e.body||e.body.length!==$e.body.length)$e.body=JSON.parse(JSON.stringify(e.body));else for(let E=0;E<e.body.length;E++){let 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2Q==`;var Y9="2.0.0";var mu,yp,xp,Yi,Ji,Au,of,bp,lf,uf,df,pf,J9=class{constructor(t){ra(this,mu,void 0);ra(this,yp,void 0);ra(this,xp,void 0);ra(this,Yi,void 0);ra(this,Ji,void 0);ra(this,Au,void 0);this.analyze=(...t)=>{if(!dn(this,yp))return;let n=this.tf.engine().state.numTensors,a=dn(this,mu);Ia(this,mu,n);let r=n-a;r!==0&&de(...t,r)};ra(this,of,t=>{if(!dn(this,xp))return null;if(!t)return"input is not defined";if(this.tf.ENV.flags.IS_NODE&&!(t instanceof Be))return"input must be a tensor";try{this.tf.getBackend()}catch(n){return"backend not loaded"}return null});ra(this,bp,async(t=!1)=>{var n;if(this.config.backend&&this.config.backend.length>0&&t||this.tf.getBackend()!==this.config.backend){let a=Je();if(this.state="backend",this.config.backend&&this.config.backend.length>0){if(typeof window=="undefined"&&typeof WorkerGlobalScope!="undefined"&&this.config.debug&&de("running inside web worker"),this.tf.ENV.flags.IS_BROWSER&&this.config.backend==="tensorflow"&&(this.config.backend="webgl"),this.tf.ENV.flags.IS_NODE&&(this.config.backend==="webgl"||this.config.backend==="humangl")&&(this.config.backend="tensorflow"),this.config.debug&&de("setting backend:",this.config.backend),this.config.backend==="wasm"){if(this.config.debug&&de("wasm path:",this.config.wasmPath),typeof((n=this.tf)==null?void 0:n.setWasmPaths)!="undefined")this.tf.setWasmPaths(this.config.wasmPath);else throw new Error("Human: WASM backend is not loaded");let r=await this.tf.env().getAsync("WASM_HAS_SIMD_SUPPORT"),s=await this.tf.env().getAsync("WASM_HAS_MULTITHREAD_SUPPORT");this.config.debug&&de(`wasm execution: ${r?"SIMD":"no SIMD"} ${s?"multithreaded":"singlethreaded"}`),this.config.debug&&!r&&de("warning: wasm simd support is not enabled")}this.config.backend==="humangl"&&Jk();try{await this.tf.setBackend(this.config.backend)}catch(r){de("error: cannot set backend:",this.config.backend,r)}}if(this.tf.enableProdMode(),this.tf.getBackend()==="webgl"||this.tf.getBackend()==="humangl"){this.tf.ENV.set("CHECK_COMPUTATION_FOR_ERRORS",!1),this.tf.ENV.set("WEBGL_CPU_FORWARD",!0),this.tf.ENV.set("WEBGL_PACK_DEPTHWISECONV",!0),this.config.object.enabled||this.tf.ENV.set("WEBGL_FORCE_F16_TEXTURES",!0),typeof this.config.deallocate!="undefined"&&this.config.deallocate&&(de("changing webgl: WEBGL_DELETE_TEXTURE_THRESHOLD:",!0),this.tf.ENV.set("WEBGL_DELETE_TEXTURE_THRESHOLD",0));let r=await this.tf.backend().getGPGPUContext().gl;this.config.debug&&de(`gl version:${r.getParameter(r.VERSION)} renderer:${r.getParameter(r.RENDERER)}`)}await this.tf.ready(),this.performance.backend=Math.trunc(Je()-a)}});this.next=t=>K9(t||this.result);ra(this,lf,async t=>{if(this.config.cacheSensitivity===0)return!1;let n=32,a=t.resizeBilinear([Math.trunc(t.shape[1]/n),Math.trunc(t.shape[2]/n)]),r=a.dataSync(),s=0;for(let u=0;u<r.length/3;u++)s+=r[3*u+2];a.dispose();let i=100*(Math.max(s,dn(this,Ji))/Math.min(s,dn(this,Ji))-1);Ia(this,Ji,s);let o=i<Math.max(this.config.cacheSensitivity,dn(this,Au));return Ia(this,Au,i>10*this.config.cacheSensitivity?0:i),o});ra(this,uf,async()=>{let t=(r,s="application/octet-stream")=>fetch(`data:${s};base64,${r}`).then(i=>i.blob()),n,a;switch(this.config.warmup){case"face":n=await t(rf);break;case"full":n=await t(sf);break;default:n=null}if(n){let r=await createImageBitmap(n);a=await this.detect(r,this.config),r.close()}return a});ra(this,df,async()=>new Promise(t=>{let n,a=0;switch(this.config.warmup){case"face":a=256,n="data:image/jpeg;base64,"+rf;break;case"full":case"body":a=1200,n="data:image/jpeg;base64,"+sf;break;default:n=null}let r=new Image;r.onload=async()=>{let s=typeof OffscreenCanvas!="undefined"?new OffscreenCanvas(a,a):document.createElement("canvas");s.width=r.naturalWidth,s.height=r.naturalHeight;let i=s.getContext("2d");i==null||i.drawImage(r,0,0);let o=await this.detect(s,this.config);t(o)},n?r.src=n:t(null)}));ra(this,pf,async()=>{let t=r=>Buffer.from(r,"base64"),n;if(this.config.warmup==="face"&&(n=t(rf)),(this.config.warmup==="body"||this.config.warmup==="full")&&(n=t(sf)),!n)return null;let a;if(typeof void 0!="undefined"){let r=(void 0).decodeJpeg(n),s=r.expandDims(0);this.tf.dispose(r),a=await this.detect(s,this.config),this.tf.dispose(s)}else this.config.debug&&de("Warmup tfjs-node not loaded");return a});this.config=Pn(v5,t||{}),this.tf=dp,this.draw=o5,this.version=Y9,this.state="idle",Ia(this,mu,0),Ia(this,yp,!1),Ia(this,xp,!1),Ia(this,Yi,!0),Ia(this,Au,0),this.performance={backend:0,load:0,image:0,frames:0,cached:0,changed:0,total:0,draw:0},this.models={face:null,posenet:null,blazepose:null,efficientpose:null,movenet:null,handpose:null,age:null,gender:null,emotion:null,embedding:null,nanodet:null,centernet:null,faceres:null,segmentation:null},this.image=n=>fu(n,this.config),this.faceTriangulation=p9,this.faceUVMap=c9,this.sysinfo=w5(),Ia(this,Ji,1)}similarity(t,n){return I2(t,n)}segmentation(t,n){return Z9(t,n,this.config)}enhance(t){return S2(t)}match(t,n,a=0){return m9(t,n,a)}async load(t){this.state="load";let n=Je();t&&(this.config=Pn(this.config,t)),dn(this,Yi)&&(this.config.debug&&de(`version: ${this.version}`),this.config.debug&&de(`tfjs version: ${this.tf.version_core}`),this.config.debug&&de("platform:",this.sysinfo.platform),this.config.debug&&de("agent:",this.sysinfo.agent),await dn(this,bp).call(this,!0),this.tf.ENV.flags.IS_BROWSER&&(this.config.debug&&de("configuration:",this.config),this.config.debug&&de("tf flags:",this.tf.ENV.flags))),this.config.async?[this.models.face,this.models.emotion,this.models.handpose,this.models.posenet,this.models.blazepose,this.models.efficientpose,this.models.movenet,this.models.nanodet,this.models.centernet,this.models.faceres,this.models.segmentation]=await Promise.all([this.models.face||(this.config.face.enabled?g2(this.config):null),this.models.emotion||(this.config.face.enabled&&this.config.face.emotion.enabled?b2(this.config):null),this.models.handpose||(this.config.hand.enabled?W2(this.config):null),this.models.posenet||(this.config.body.enabled&&this.config.body.modelPath.includes("posenet")?D2(this.config):null),this.models.blazepose||(this.config.body.enabled&&this.config.body.modelPath.includes("blazepose")?J0(this.config):null),this.models.efficientpose||(this.config.body.enabled&&this.config.body.modelPath.includes("efficientpose")?_9(this.config):null),this.models.movenet||(this.config.body.enabled&&this.config.body.modelPath.includes("movenet")?K2(this.config):null),this.models.nanodet||(this.config.object.enabled&&this.config.object.modelPath.includes("nanodet")?Q2(this.config):null),this.models.centernet||(this.config.object.enabled&&this.config.object.modelPath.includes("centernet")?a5(this.config):null),this.models.faceres||(this.config.face.enabled&&this.config.face.description.enabled?k2(this.config):null),this.models.segmentation||(this.config.segmentation.enabled?af(this.config):null)]):(this.config.face.enabled&&!this.models.face&&(this.models.face=await g2(this.config)),this.config.face.enabled&&this.config.face.emotion.enabled&&!this.models.emotion&&(this.models.emotion=await b2(this.config)),this.config.hand.enabled&&!this.models.handpose&&(this.models.handpose=await W2(this.config)),this.config.body.enabled&&!this.models.posenet&&this.config.body.modelPath.includes("posenet")&&(this.models.posenet=await D2(this.config)),this.config.body.enabled&&!this.models.blazepose&&this.config.body.modelPath.includes("blazepose")&&(this.models.blazepose=await J0(this.config)),this.config.body.enabled&&!this.models.efficientpose&&this.config.body.modelPath.includes("efficientpose")&&(this.models.efficientpose=await J0(this.config)),this.config.body.enabled&&!this.models.movenet&&this.config.body.modelPath.includes("movenet")&&(this.models.movenet=await K2(this.config)),this.config.object.enabled&&!this.models.nanodet&&this.config.object.modelPath.includes("nanodet")&&(this.models.nanodet=await Q2(this.config)),this.config.object.enabled&&!this.models.centernet&&this.config.object.modelPath.includes("centernet")&&(this.models.centernet=await a5(this.config)),this.config.face.enabled&&this.config.face.description.enabled&&!this.models.faceres&&(this.models.faceres=await k2(this.config)),this.config.segmentation.enabled&&!this.models.segmentation&&(this.models.segmentation=await af(this.config))),dn(this,Yi)&&(this.config.debug&&de("tf engine state:",this.tf.engine().state.numBytes,"bytes",this.tf.engine().state.numTensors,"tensors"),Ia(this,Yi,!1));let a=Math.trunc(Je()-n);a>(this.performance.load||0)&&(this.performance.load=a)}async detect(t,n){return new Promise(async a=>{this.state="config";let r;this.config=Pn(this.config,n),this.state="check";let s=dn(this,of).call(this,t);s&&(de(s,t),a({error:s}));let i=Je();await dn(this,bp).call(this),await this.load(),r=Je();let o=fu(t,this.config);if(!o||!o.tensor){de("could not convert input to tensor"),a({error:"could not convert input to tensor"});return}this.performance.image=Math.trunc(Je()-r),this.analyze("Get Image:"),r=Je(),this.config.skipFrame=await dn(this,lf).call(this,o.tensor),this.performance.frames||(this.performance.frames=0),this.performance.cached||(this.performance.cached=0),this.performance.frames++,this.config.skipFrame&&this.performance.cached++,this.performance.changed=Math.trunc(Je()-r),this.analyze("Check Changed:");let u,l,d,p,c;this.config.async?(u=this.config.face.enabled?T2(this,o.tensor):[],this.performance.face&&delete this.performance.face):(this.state="run:face",r=Je(),u=this.config.face.enabled?await T2(this,o.tensor):[],c=Math.trunc(Je()-r),c>0&&(this.performance.face=c)),this.analyze("Start Body:"),this.config.async?(this.config.body.modelPath.includes("posenet")?l=this.config.body.enabled?$2(o.tensor,this.config):[]:this.config.body.modelPath.includes("blazepose")?l=this.config.body.enabled?B2(o.tensor,this.config):[]:this.config.body.modelPath.includes("efficientpose")?l=this.config.body.enabled?H2(o.tensor,this.config):[]:this.config.body.modelPath.includes("movenet")&&(l=this.config.body.enabled?Z2(o.tensor,this.config):[]),this.performance.body&&delete this.performance.body):(this.state="run:body",r=Je(),this.config.body.modelPath.includes("posenet")?l=this.config.body.enabled?await $2(o.tensor,this.config):[]:this.config.body.modelPath.includes("blazepose")?l=this.config.body.enabled?await B2(o.tensor,this.config):[]:this.config.body.modelPath.includes("efficientpose")?l=this.config.body.enabled?await H2(o.tensor,this.config):[]:this.config.body.modelPath.includes("movenet")&&(l=this.config.body.enabled?await Z2(o.tensor,this.config):[]),c=Math.trunc(Je()-r),c>0&&(this.performance.body=c)),this.analyze("End Body:"),this.analyze("Start Hand:"),this.config.async?(d=this.config.hand.enabled?L2(o.tensor,this.config):[],this.performance.hand&&delete this.performance.hand):(this.state="run:hand",r=Je(),d=this.config.hand.enabled?await L2(o.tensor,this.config):[],c=Math.trunc(Je()-r),c>0&&(this.performance.hand=c)),this.analyze("End Hand:"),this.analyze("Start Object:"),this.config.async?(this.config.object.modelPath.includes("nanodet")?p=this.config.object.enabled?e5(o.tensor,this.config):[]:this.config.object.modelPath.includes("centernet")&&(p=this.config.object.enabled?r5(o.tensor,this.config):[]),this.performance.object&&delete this.performance.object):(this.state="run:object",r=Je(),this.config.object.modelPath.includes("nanodet")?p=this.config.object.enabled?await e5(o.tensor,this.config):[]:this.config.object.modelPath.includes("centernet")&&(p=this.config.object.enabled?await r5(o.tensor,this.config):[]),c=Math.trunc(Je()-r),c>0&&(this.performance.object=c)),this.analyze("End Object:"),this.config.async&&([u,l,d,p]=await Promise.all([u,l,d,p]));let h=[];this.config.gesture.enabled&&(r=Je(),h=[...L9(u),...P9(l),...B9(d),...W9(u)],this.config.async?this.performance.gesture&&delete this.performance.gesture:this.performance.gesture=Math.trunc(Je()-r)),this.performance.total=Math.trunc(Je()-i),this.state="idle",this.result={face:u,body:l,hand:d,gesture:h,object:p,performance:this.performance,canvas:o.canvas,timestamp:Date.now(),get persons(){var m;return X9(u,l,d,h,(m=o==null?void 0:o.tensor)==null?void 0:m.shape)}},he(o.tensor),a(this.result)})}async warmup(t){let n=Je();if(t&&(this.config=Pn(this.config,t)),!this.config.warmup||this.config.warmup==="none")return{error:"null"};let a;typeof createImageBitmap=="function"?a=await dn(this,uf).call(this):typeof Image!="undefined"?a=await dn(this,df).call(this):a=await dn(this,pf).call(this);let r=Je();return this.config.debug&&de("Warmup",this.config.warmup,Math.round(r-n),"ms",a),a}};mu=new WeakMap,yp=new WeakMap,xp=new WeakMap,Yi=new WeakMap,Ji=new WeakMap,Au=new WeakMap,of=new WeakMap,bp=new WeakMap,lf=new WeakMap,uf=new WeakMap,df=new WeakMap,pf=new WeakMap;return Jle;})();
/**
 * @license
 * Copyright 2017 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2018 Google LLC
 *
 * Use of this source code is governed by an MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2018 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * =============================================================================
 */
/**
 * @license
 * Copyright 2018 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2019 Google LLC
 *
 * Use of this source code is governed by an MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * =============================================================================
 */
/**
 * @license
 * Copyright 2019 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2020 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Use of this source code is governed by an MIT-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/MIT.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2020 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the License);
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/**
 * @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
/** @license See the LICENSE file. */