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To get the original bytes, call tensor.bytes().")}return t},n.prototype.bytes=function(){return de(this,void 0,void 0,function(){var t;return pe(this,function(e){switch(e.label){case 0:return this.throwIfDisposed(),[4,Rn().read(this.dataId)];case 1:return t=e.sent(),this.dtype==="string"?[2,t]:[2,new Uint8Array(t.buffer)]}})})},n.prototype.dispose=function(){if(this.isDisposed)return;Rn().disposeTensor(this),this.isDisposedInternal=!0},Object.defineProperty(n.prototype,"isDisposed",{get:function(){return this.isDisposedInternal},enumerable:!0,configurable:!0}),n.prototype.throwIfDisposed=function(){if(this.isDisposed)throw new Error("Tensor is disposed.")},n.prototype.print=function(t){return t===void 0&&(t=!1),Ar.print(this,t)},n.prototype.clone=function(){return this.throwIfDisposed(),Ar.clone(this)},n.prototype.toString=function(t){t===void 0&&(t=!1);var e=this.dataSync();return p2(e,this.shape,this.dtype,t)},n.prototype.cast=function(t){return this.throwIfDisposed(),Ar.cast(this,t)},n.prototype.variable=function(t,e,i){return t===void 0&&(t=!0),this.throwIfDisposed(),Rn().makeVariable(this,t,e,i)},n}();Object.defineProperty(Y,Symbol.hasInstance,{value:function(n){return!!n&&n.data!=null&&n.dataSync!=null&&n.throwIfDisposed!=null}});var wa=function(n){qn(t,n);function t(e,i,r,a){var s=n.call(this,e.shape,e.dtype,e.dataId,a)||this;return s.trainable=i,s.name=r,s}return t.prototype.assign=function(e){if(e.dtype!==this.dtype)throw new Error("dtype of the new value ("+e.dtype+") and "+("previous value ("+this.dtype+") must match"));if(!ln(e.shape,this.shape))throw new Error("shape of the new value ("+e.shape+") and "+("previous value ("+this.shape+") must match"));Rn().disposeTensor(this),this.dataId=e.dataId,Rn().incRef(this,null)},t.prototype.dispose=function(){Rn().disposeVariable(this),this.isDisposedInternal=!0},t}(Y);Object.defineProperty(wa,Symbol.hasInstance,{value:function(n){return n instanceof Y&&n.assign!=null&&n.assign instanceof Function}});(function(n){n.R0="R0",n.R1="R1",n.R2="R2",n.R3="R3",n.R4="R4",n.R5="R5",n.R6="R6"})(I.Rank||(I.Rank={}));var tc;(function(n){n.float32="float32",n.int32="int32",n.bool="int32",n.complex64="complex64"})(tc||(tc={}));var nc;(function(n){n.float32="float32",n.int32="int32",n.bool="bool",n.complex64="complex64"})(nc||(nc={}));var ic;(function(n){n.float32="float32",n.int32="float32",n.bool="float32",n.complex64="complex64"})(ic||(ic={}));var rc;(function(n){n.float32="complex64",n.int32="complex64",n.bool="complex64",n.complex64="complex64"})(rc||(rc={}));var g2={float32:ic,int32:tc,bool:nc,complex64:rc};function Ts(n,t){if(n==="string"||t==="string"){if(n==="string"&&t==="string")return"string";throw new Error("Can not upcast "+n+" with "+t)}return g2[n][t]}function v2(n){return Ts(n,"int32")}function at(n,t){if(n.dtype===t.dtype)return[n,t];var e=Ts(n.dtype,t.dtype);return[n.cast(e),t.cast(e)]}function Zf(n,t){E(n.dtype===t.dtype,function(){return"The dtypes of the first("+n.dtype+") and"+(" second("+t.dtype+") input must match")})}function y2(n,t){return t.some(function(e){return e.id===n.id})}function ac(n){var t=[],e=new Set;return Qf(n,t,e),t}function Qf(n,t,e){if(n==null)return;if(n instanceof Y){t.push(n);return}if(!b2(n))return;var i=n;for(var r in i){var a=i[r];e.has(a)||(e.add(a),Qf(a,t,e))}}function b2(n){return Array.isArray(n)||typeof n=="object"}var w2={__proto__:null,makeTypesMatch:at,assertTypesMatch:Zf,isTensorInList:y2,getTensorsInContainer:ac};var em=function(){function n(){this.registeredVariables={},this.nextTapeNodeId=0,this.numBytes=0,this.numTensors=0,this.numStringTensors=0,this.numDataBuffers=0,this.gradientDepth=0,this.kernelDepth=0,this.scopeStack=[],this.numDataMovesStack=[],this.nextScopeId=0,this.tensorInfo=new WeakMap,this.profiling=!1,this.activeProfile={newBytes:0,newTensors:0,peakBytes:0,kernels:[],result:null}}return n.prototype.dispose=function(){for(var t in this.registeredVariables)this.registeredVariables[t].dispose()},n}(),I2=function(){function n(t){this.ENV=t,this.registry={},this.registryFactory={},this.pendingBackendInitId=0,this.state=new em}return n.prototype.ready=function(){return de(this,void 0,void 0,function(){var t,e,i,r;return pe(this,function(a){switch(a.label){case 0:if(this.pendingBackendInit!=null)return[2,this.pendingBackendInit.then(function(){})];if(this.backendInstance!=null)return[2];t=this.getSortedBackends(),e=0,a.label=1;case 1:return e<t.length?(i=t[e],[4,this.initializeBackend(i).success]):[3,5];case 2:return r=a.sent(),r?[4,this.setBackend(i)]:[3,4];case 3:return a.sent(),[2];case 4:return e++,[3,1];case 5:throw new Error("Could not initialize any backends, all backend initializations failed.")}})})},Object.defineProperty(n.prototype,"backend",{get:function(){if(this.pendingBackendInit!=null)throw new Error("Backend '"+this.backendName+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");if(this.backendInstance==null){var t=this.initializeBackendsAndReturnBest(),e=t.name,i=t.asyncInit;if(i)throw new Error("The highest priority backend '"+e+"' has not yet been initialized. Make sure to await tf.ready() or await tf.setBackend() before calling other methods");this.setBackend(e)}return this.backendInstance},enumerable:!0,configurable:!0}),n.prototype.backendNames=function(){return Object.keys(this.registryFactory)},n.prototype.findBackend=function(t){if(!(t in this.registry))if(t in this.registryFactory){var e=this.initializeBackend(t).asyncInit;if(e)return null}else return null;return this.registry[t]},n.prototype.findBackendFactory=function(t){return t in this.registryFactory?this.registryFactory[t].factory:null},n.prototype.registerBackend=function(t,e,i){return i===void 0&&(i=1),t in this.registryFactory?(console.warn(t+" backend was already registered. Reusing existing backend factory."),!1):(this.registryFactory[t]={factory:e,priority:i},!0)},n.prototype.setBackend=function(t){return de(this,void 0,void 0,function(){var e,i,r,a,s;return pe(this,function(o){switch(o.label){case 0:if(this.registryFactory[t]==null)throw new Error("Backend name '"+t+"' not found in registry");return this.backendName=t,this.registry[t]==null?(this.backendInstance=null,e=this.initializeBackend(t),i=e.success,r=e.asyncInit,r?[4,i]:[3,2]):[3,4];case 1:return s=o.sent(),[3,3];case 2:s=i,o.label=3;case 3:if(a=s,!a)return[2,!1];o.label=4;case 4:return this.backendInstance=this.registry[t],this.setupRegisteredKernels(),this.profiler=new u2(this.backendInstance),[2,!0]}})})},n.prototype.setupRegisteredKernels=function(){var t=this,e=ys(this.backendName);e.forEach(function(i){i.setupFunc!=null&&i.setupFunc(t.backendInstance)})},n.prototype.disposeRegisteredKernels=function(t){var e=this,i=ys(t);i.forEach(function(r){r.disposeFunc!=null&&r.disposeFunc(e.registry[t])})},n.prototype.initializeBackend=function(t){var e=this,i=this.registryFactory[t];if(i==null)throw new Error("Cannot initialize backend "+t+", no registration found.");try{var r=i.factory();if(r&&!(r instanceof Fp)&&typeof r.then=="function"){var a=++this.pendingBackendInitId,s=r.then(function(o){return a<e.pendingBackendInitId?!1:(e.registry[t]=o,e.pendingBackendInit=null,!0)}).catch(function(o){return a<e.pendingBackendInitId||(e.pendingBackendInit=null,console.warn("Initialization of backend "+t+" failed"),console.warn(o.stack||o.message)),!1});return this.pendingBackendInit=s,{success:s,asyncInit:!0}}else return this.registry[t]=r,{success:!0,asyncInit:!1}}catch(o){return console.warn("Initialization of backend "+t+" failed"),console.warn(o.stack||o.message),{success:!1,asyncInit:!1}}},n.prototype.removeBackend=function(t){if(!(t in this.registryFactory))throw new Error(t+" backend not found in registry");this.backendName===t&&this.pendingBackendInit!=null&&this.pendingBackendInitId++,t in this.registry&&(this.disposeRegisteredKernels(t),this.registry[t].dispose(),delete this.registry[t]),delete this.registryFactory[t],this.backendName===t&&(this.pendingBackendInit=null,this.backendName=null,this.backendInstance=null)},n.prototype.getSortedBackends=function(){var t=this;if(Object.keys(this.registryFactory).length===0)throw new Error("No backend found in registry.");return Object.keys(this.registryFactory).sort(function(e,i){return t.registryFactory[i].priority-t.registryFactory[e].priority})},n.prototype.initializeBackendsAndReturnBest=function(){for(var t=this.getSortedBackends(),e=0;e<t.length;e++){var i=t[e],r=this.initializeBackend(i),a=r.success,s=r.asyncInit;if(s||a)return{name:i,asyncInit:s}}throw new Error("Could not initialize any backends, all backend initializations failed.")},n.prototype.moveData=function(t,e){var i=this.state.tensorInfo.get(e),r=i.backend,a=this.readSync(e);r.disposeData(e),i.backend=t,t.move(e,a,i.shape,i.dtype),this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack[this.state.numDataMovesStack.length-1]++},n.prototype.tidy=function(t,e){var i=this,r=null;if(e==null){if(typeof t!="function")throw new Error("Please provide a function to tidy()");e=t}else{if(typeof t!="string"&&!(t instanceof String))throw new Error("When calling with two arguments, the first argument to tidy() must be a string");if(typeof e!="function")throw new Error("When calling with two arguments, the 2nd argument to tidy() must be a function");r=t}var a;return this.scopedRun(function(){return i.startScope(r)},function(){return i.endScope(a)},function(){return a=e(),a instanceof Promise&&console.error("Cannot return a Promise inside of tidy."),a})},n.prototype.scopedRun=function(t,e,i){t();try{var r=i();return e(),r}catch(a){throw e(),a}},n.prototype.nextTensorId=function(){return n.nextTensorId++},n.prototype.nextVariableId=function(){return n.nextVariableId++},n.prototype.clone=function(t){var e=this.makeTensorFromDataId(t.dataId,t.shape,t.dtype),i={x:t},r=function(s){return{x:function(){var o="float32",l={x:s},u={dtype:o};return z.runKernelFunc(function(c){return c.cast(s,o)},l,null,vs,u)}}},a=[];return this.addTapeNode(this.state.activeScope.name,i,[e],r,a,{}),e},n.prototype.runKernel=function(t,e,i,r,a){var s=null,o=null;return this.runKernelFunc(s,e,o,t,i,r,a)},n.prototype.shouldCheckForMemLeaks=function(){return this.ENV.getBool("IS_TEST")},n.prototype.checkKernelForMemLeak=function(t,e,i){var r=this.backend.numDataIds(),a=0;i.forEach(function(l){a+=l.dtype==="complex64"?3:1});var s=this.state.numDataMovesStack[this.state.numDataMovesStack.length-1],o=r-e-a-s;if(o>0)throw new Error("Backend '"+this.backendName+"' has an internal memory leak "+("("+o+" data ids) after running '"+t+"'"))},n.prototype.runKernelFunc=function(t,e,i,r,a,s,o){var l=this,u,c=[],h=this.isTapeOn();r==null&&(r=this.state.activeScope!=null?this.state.activeScope.name:"");var d=this.state.numBytes,p=this.state.numTensors;this.shouldCheckForMemLeaks()&&this.state.numDataMovesStack.push(0);var f,m=Ku(r,this.backendName),g;if(m!=null)f=function(){var w=l.backend.numDataIds();g=m.kernelFunc({inputs:e,attrs:a,backend:l.backend});var S=Array.isArray(g)?g:[g];l.shouldCheckForMemLeaks()&&l.checkKernelForMemLeak(r,w,S);var L=S.map(function(R){var D=R.dataId,k=R.shape,W=R.dtype;return l.makeTensorFromDataId(D,k,W)});if(h){var x=l.getTensorsForGradient(r,e,L);if(x==null){o==null&&(o=[]);var C=L.filter(function(R,D){return o[D]});x=(s||[]).slice().concat(C)}c=l.saveTensorsForBackwardMode(x)}return L};else{var v=function(w){if(!h)return;c=w.map(function(S){return l.keep(l.clone(S))})};f=function(){var w=l.backend.numDataIds();g=l.tidy(function(){return t(l.backend,v)});var S=Array.isArray(g)?g:[g];return l.shouldCheckForMemLeaks()&&l.checkKernelForMemLeak(r,w,S),S}}var b;return this.scopedRun(function(){return l.state.kernelDepth++},function(){return l.state.kernelDepth--},function(){!l.ENV.getBool("DEBUG")&&!l.state.profiling?u=f():(b=l.profiler.profileKernel(r,e,function(){return f()}),l.ENV.getBool("DEBUG")&&l.profiler.logKernelProfile(b),u=b.outputs)}),h&&this.addTapeNode(r,e,u,i,c,a),this.state.profiling&&this.state.activeProfile.kernels.push({name:r,bytesAdded:this.state.numBytes-d,totalBytesSnapshot:this.state.numBytes,tensorsAdded:this.state.numTensors-p,totalTensorsSnapshot:this.state.numTensors,inputShapes:Object.keys(e).map(function(w){return e[w]!=null?e[w].shape:null}),outputShapes:u.map(function(w){return w.shape}),kernelTimeMs:b.timeMs,extraInfo:b.extraInfo}),Array.isArray(g)?u:u[0]},n.prototype.saveTensorsForBackwardMode=function(t){var e=this,i=t.map(function(r){return e.keep(e.clone(r))});return i},n.prototype.getTensorsForGradient=function(t,e,i){var r=ju(t);if(r!=null){var a=r.inputsToSave||[],s=r.outputsToSave||[],o=void 0;r.saveAllInputs?(E(Array.isArray(e),function(){return"saveAllInputs is true, expected inputs to be an array."}),o=Object.keys(e).map(function(u){return e[u]})):o=a.map(function(u){return e[u]});var l=i.filter(function(u,c){return s[c]});return o.concat(l)}return null},n.prototype.makeTensor=function(t,e,i,r){if(t==null)throw new Error("Values passed to engine.makeTensor() are null");i=i||"float32",r=r||this.backend;var a=t;i==="string"&&ii(t[0])&&(a=t.map(function(c){return $u(c)}));var s=r.write(a,e,i),o=new Y(e,i,s,this.nextTensorId());if(this.incRef(o,r),i==="string"){var l=this.state.tensorInfo.get(s),u=Yf(a);this.state.numBytes+=u-l.bytes,l.bytes=u}return o},n.prototype.makeTensorFromDataId=function(t,e,i,r){i=i||"float32";var a=new Y(e,i,t,this.nextTensorId());return this.incRef(a,r),a},n.prototype.makeVariable=function(t,e,i,r){e===void 0&&(e=!0),i=i||this.nextVariableId().toString(),r!=null&&r!==t.dtype&&(t=t.cast(r));var a=new wa(t,e,i,this.nextTensorId());if(this.state.registeredVariables[a.name]!=null)throw new Error("Variable with name "+a.name+" was already registered");return this.state.registeredVariables[a.name]=a,this.incRef(a,this.backend),a},n.prototype.incRef=function(t,e){var i=this.state.tensorInfo.has(t.dataId)?this.state.tensorInfo.get(t.dataId).refCount:0;if(this.state.numTensors++,t.dtype==="string"&&this.state.numStringTensors++,i===0){this.state.numDataBuffers++;var r=0;t.dtype!=="complex64"&&t.dtype!=="string"&&(r=t.size*Gf(t.dtype)),this.state.tensorInfo.set(t.dataId,{backend:e||this.backend,dtype:t.dtype,shape:t.shape,bytes:r,refCount:0}),this.state.numBytes+=r}this.state.tensorInfo.get(t.dataId).refCount++,t instanceof wa||this.track(t)},n.prototype.disposeTensor=function(t){if(!this.state.tensorInfo.has(t.dataId))return;this.state.numTensors--,t.dtype==="string"&&this.state.numStringTensors--;var e=this.state.tensorInfo.get(t.dataId),i=e.refCount;i<=1?(t.dtype!=="complex64"&&(this.state.numBytes-=e.bytes),this.state.numDataBuffers--,e.backend.disposeData(t.dataId),this.state.tensorInfo.delete(t.dataId)):this.state.tensorInfo.get(t.dataId).refCount--},n.prototype.disposeVariables=function(){for(var t in this.state.registeredVariables){var e=this.state.registeredVariables[t];this.disposeVariable(e)}},n.prototype.disposeVariable=function(t){this.disposeTensor(t),this.state.registeredVariables[t.name]!=null&&delete this.state.registeredVariables[t.name]},n.prototype.memory=function(){var t=this.backend.memory();return t.numTensors=this.state.numTensors,t.numDataBuffers=this.state.numDataBuffers,t.numBytes=this.state.numBytes,this.state.numStringTensors>0&&(t.unreliable=!0,t.reasons==null&&(t.reasons=[]),t.reasons.push("Memory usage by string tensors is approximate (2 bytes per character)")),t},n.prototype.profile=function(t){return de(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u;return pe(this,function(c){switch(c.label){case 0:return this.state.profiling=!0,e=this.state.numBytes,i=this.state.numTensors,this.state.activeProfile.kernels=[],r=this.state.activeProfile,[4,t()];case 1:r.result=c.sent(),this.state.profiling=!1,this.state.activeProfile.peakBytes=Math.max.apply(Math,this.state.activeProfile.kernels.map(function(h){return h.totalBytesSnapshot})),this.state.activeProfile.newBytes=this.state.numBytes-e,this.state.activeProfile.newTensors=this.state.numTensors-i,a=0,s=this.state.activeProfile.kernels,c.label=2;case 2:return a<s.length?(o=s[a],l=o,[4,o.kernelTimeMs]):[3,6];case 3:return l.kernelTimeMs=c.sent(),u=o,[4,o.extraInfo];case 4:u.extraInfo=c.sent(),c.label=5;case 5:return a++,[3,2];case 6:return[2,this.state.activeProfile]}})})},n.prototype.isTapeOn=function(){return this.state.gradientDepth>0&&this.state.kernelDepth===0},n.prototype.addTapeNode=function(t,e,i,r,a,s){var o=this,l={id:this.state.nextTapeNodeId++,kernelName:t,inputs:e,outputs:i,saved:a},u=ju(t);u!=null&&(r=u.gradFunc),r!=null&&(l.gradient=function(c){return c=c.map(function(h,d){if(h==null){var p=i[d],f=Ir(p.size,p.dtype);return o.makeTensor(f,p.shape,p.dtype)}return h}),r(c.length>1?c:c[0],a,s)}),this.state.activeTape.push(l)},n.prototype.keep=function(t){return t.kept=!0,t},n.prototype.startTape=function(){this.state.gradientDepth===0&&(this.state.activeTape=[]),this.state.gradientDepth++},n.prototype.endTape=function(){this.state.gradientDepth--},n.prototype.startScope=function(t){var e={track:[],name:"unnamed scope",id:this.state.nextScopeId++};t&&(e.name=t),this.state.scopeStack.push(e),this.state.activeScope=e},n.prototype.endScope=function(t){for(var e=this,i=ac(t),r=new Set(i.map(function(l){return l.id})),a=0;a<this.state.activeScope.track.length;a++){var s=this.state.activeScope.track[a];!s.kept&&!r.has(s.id)&&s.dispose()}var o=this.state.scopeStack.pop();this.state.activeScope=this.state.scopeStack.length===0?null:this.state.scopeStack[this.state.scopeStack.length-1],i.forEach(function(l){!l.kept&&l.scopeId===o.id&&e.track(l)})},n.prototype.gradients=function(t,e,i,r){var a=this;if(r===void 0&&(r=!1),E(e.length>0,function(){return"gradients() received an empty list of xs."}),i!=null&&i.dtype!=="float32")throw new Error("dy must have 'float32' dtype, but has '"+i.dtype+"'");var s=this.scopedRun(function(){return a.startTape()},function(){return a.endTape()},function(){return a.tidy("forward",t)});E(s instanceof Y,function(){return"The result y returned by f() must be a tensor."});var o=c2(this.state.activeTape,e,s);if(!r&&o.length===0&&e.length>0)throw new Error("Cannot compute gradient of y=f(x) with respect to x. Make sure that the f you passed encloses all operations that lead from x to y.");return this.tidy("backward",function(){var l={};l[s.id]=i??S2(s.shape),h2(l,o,function(c){return a.tidy(c)},L2);var u=e.map(function(c){return l[c.id]});return a.state.gradientDepth===0&&(a.state.activeTape.forEach(function(c){for(var h=0,d=c.saved;h<d.length;h++){var p=d[h];p.dispose()}}),a.state.activeTape=null),{value:s,grads:u}})},n.prototype.customGrad=function(t){var e=this;return E(ri(t),function(){return"The f passed in customGrad(f) must be a function."}),function(){for(var i=[],r=0;r<arguments.length;r++)i[r]=arguments[r];E(i.every(function(o){return o instanceof Y}),function(){return"The args passed in customGrad(f)(x1, x2,...) must all be tensors"});var a,s={};return i.forEach(function(o,l){s[l]=o}),e.runKernelFunc(function(o,l){return a=t.apply(void 0,i.concat([l])),E(a.value instanceof Y,function(){return"The function f passed in customGrad(f) must return an object where `obj.value` is a 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storage.");if(this.LS=window.localStorage,t==null||!t)throw new Error("For local storage, modelPath must not be null, undefined or empty.");this.modelPath=t,this.keys=dm(this.modelPath)}return n.prototype.save=function(t){return de(this,void 0,void 0,function(){var e,i,r;return pe(this,function(a){if(t.modelTopology instanceof ArrayBuffer)throw new Error("BrowserLocalStorage.save() does not support saving model topology in binary formats yet.");e=JSON.stringify(t.modelTopology),i=JSON.stringify(t.weightSpecs),r=La(t);try{return this.LS.setItem(this.keys.info,JSON.stringify(r)),this.LS.setItem(this.keys.topology,e),this.LS.setItem(this.keys.weightSpecs,i),this.LS.setItem(this.keys.weightData,E2(t.weightData)),this.LS.setItem(this.keys.modelMetadata,JSON.stringify({format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,userDefinedMetadata:t.userDefinedMetadata})),[2,{modelArtifactsInfo:r}]}catch(s){throw this.LS.removeItem(this.keys.info),this.LS.removeItem(this.keys.topology),this.LS.removeItem(this.keys.weightSpecs),this.LS.removeItem(this.keys.weightData),this.LS.removeItem(this.keys.modelMetadata),new Error("Failed to save model '"+this.modelPath+"' to local storage: size quota being exceeded is a possible cause of this failure: "+("modelTopologyBytes="+r.modelTopologyBytes+", ")+("weightSpecsBytes="+r.weightSpecsBytes+", ")+("weightDataBytes="+r.weightDataBytes+"."))}return[2]})})},n.prototype.load=function(){return de(this,void 0,void 0,function(){var t,e,i,r,a,s,o;return pe(this,function(l){if(t=JSON.parse(this.LS.getItem(this.keys.info)),t==null)throw new Error("In local storage, there is no model with name '"+this.modelPath+"'");if(t.modelTopologyType!=="JSON")throw new Error("BrowserLocalStorage does not support loading non-JSON model topology yet.");if(e={},i=JSON.parse(this.LS.getItem(this.keys.topology)),i==null)throw new Error("In local storage, the topology of model '"+this.modelPath+"' is missing.");if(e.modelTopology=i,r=JSON.parse(this.LS.getItem(this.keys.weightSpecs)),r==null)throw new Error("In local storage, the weight specs of model '"+this.modelPath+"' are missing.");if(e.weightSpecs=r,a=this.LS.getItem(this.keys.modelMetadata),a!=null&&(s=JSON.parse(a),e.format=s.format,e.generatedBy=s.generatedBy,e.convertedBy=s.convertedBy,e.userDefinedMetadata=s.userDefinedMetadata),o=this.LS.getItem(this.keys.weightData),o==null)throw new Error("In local storage, the binary weight values of model "+("'"+this.modelPath+"' are missing."));return e.weightData=D2(o),[2,e]})})},n.URL_SCHEME="localstorage://",n}(),pm=function(n){return He().getBool("IS_BROWSER")&&(!Array.isArray(n)&&n.startsWith(xr.URL_SCHEME))?$2(n.slice(xr.URL_SCHEME.length)):null};Qt.registerSaveRouter(pm);Qt.registerLoadRouter(pm);function $2(n){return new xr(n)}var X2=function(){function n(){E(He().getBool("IS_BROWSER"),function(){return"Current environment is not a web 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c=d.sent(),e&&u?[4,ui.getManager(o).removeModel(l)]:[3,3];case 2:d.sent(),d.label=3;case 3:return[4,s.save(c)];case 4:return h=d.sent(),e&&!u?[4,ui.getManager(o).removeModel(l)]:[3,6];case 5:d.sent(),d.label=6;case 6:return[2,h.modelArtifactsInfo]}})})}function J2(){return de(this,void 0,void 0,function(){var n,t,e,i,r,a,s,o;return pe(this,function(l){switch(l.label){case 0:n=ui.getSchemes(),t={},e=0,i=n,l.label=1;case 1:return e<i.length?(r=i[e],[4,ui.getManager(r).listModels()]):[3,4];case 2:a=l.sent();for(s in a)o=r+Cr+s,t[o]=a[s];l.label=3;case 3:return e++,[3,1];case 4:return[2,t]}})})}function Z2(n){return de(this,void 0,void 0,function(){var t,e;return pe(this,function(i){return t=xs(n),e=ui.getManager(t.scheme),[2,e.removeModel(t.path)]})})}function Q2(n,t){return de(this,void 0,void 0,function(){var e;return pe(this,function(i){return e=!1,[2,fm(n,t,e)]})})}function eA(n,t){return de(this,void 0,void 0,function(){var e;return pe(this,function(i){return e=!0,[2,fm(n,t,e)]})})}var tA=function(){function n(){}return n.prototype.fetch=function(t,e){return fetch(t,e)},n.prototype.now=function(){return performance.now()},n.prototype.encode=function(t,e){if(e!=="utf-8"&&e!=="utf8")throw new Error("Browser's encoder only supports utf-8, but got "+e);return this.textEncoder==null&&(this.textEncoder=new TextEncoder),this.textEncoder.encode(t)},n.prototype.decode=function(t,e){return new TextDecoder(e).decode(t)},n}();if(He().get("IS_BROWSER")){He().setPlatform("browser",new tA);try{ui.registerManager(xr.URL_SCHEME,new X2)}catch(n){}try{ui.registerManager(Tr.URL_SCHEME,new H2)}catch(n){}}var nA={importFetch:function(){return Dp()}},dc,iA=function(){function n(){this.util=kp(),this.textEncoder=new this.util.TextEncoder}return n.prototype.fetch=function(t,e){return He().global.fetch!=null?He().global.fetch(t,e):(dc==null&&(dc=nA.importFetch()),dc(t,e))},n.prototype.now=function(){var t=process.hrtime();return 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0&&(t=!1),console.log(n.toString(t))}tm();var sA={buffer:En,cast:ue,clone:Pi,print:mm};m2(sA);var oA="model",lA=".json",uA=".weights.bin";function gm(n){return new Promise(function(t){return setTimeout(t)}).then(n)}var pc=function(){function n(t){if(!He().getBool("IS_BROWSER"))throw new Error("browserDownloads() cannot proceed because the current environment is not a browser.");t.startsWith(n.URL_SCHEME)&&(t=t.slice(n.URL_SCHEME.length)),(t==null||t.length===0)&&(t=oA),this.modelTopologyFileName=t+lA,this.weightDataFileName=t+uA}return n.prototype.save=function(t){return de(this,void 0,void 0,function(){var e,i,r,a,s,o;return pe(this,function(l){switch(l.label){case 0:if(typeof document=="undefined")throw new Error("Browser downloads are not supported in this environment since `document` is not present");if(e=window.URL.createObjectURL(new Blob([t.weightData],{type:"application/octet-stream"})),!(t.modelTopology instanceof ArrayBuffer))return[3,1];throw new Error("BrowserDownloads.save() does not support saving model topology in binary formats yet.");case 1:return i=[{paths:["./"+this.weightDataFileName],weights:t.weightSpecs}],r={modelTopology:t.modelTopology,format:t.format,generatedBy:t.generatedBy,convertedBy:t.convertedBy,weightsManifest:i},a=window.URL.createObjectURL(new Blob([JSON.stringify(r)],{type:"application/json"})),s=this.jsonAnchor==null?document.createElement("a"):this.jsonAnchor,s.download=this.modelTopologyFileName,s.href=a,[4,gm(function(){return s.dispatchEvent(new MouseEvent("click"))})];case 2:return l.sent(),t.weightData!=null?(o=this.weightDataAnchor==null?document.createElement("a"):this.weightDataAnchor,o.download=this.weightDataFileName,o.href=e,[4,gm(function(){return o.dispatchEvent(new MouseEvent("click"))})]):[3,4];case 3:l.sent(),l.label=4;case 4:return[2,{modelArtifactsInfo:La(t)}]}})})},n.URL_SCHEME="downloads://",n}(),cA=function(){function n(t){if(t==null||t.length<1)throw new Error("When calling browserFiles, at least 1 file is required, "+("but received "+t));this.files=t}return n.prototype.load=function(){return de(this,void 0,void 0,function(){var t,e,i=this;return pe(this,function(r){return t=this.files[0],e=this.files.slice(1),[2,new Promise(function(a,s){var o=new FileReader;o.onload=function(l){var u=JSON.parse(l.target.result),c=u.modelTopology;if(c==null){s(new Error("modelTopology field is missing from file "+t.name));return}e.length===0&&a({modelTopology:c});var h=u.weightsManifest;if(h==null){s(new Error("weightManifest field is missing from file "+t.name));return}var d;try{d=i.checkManifestAndWeightFiles(h,e)}catch(g){s(g);return}var p=[],f=[],m=[];h.forEach(function(g){g.paths.forEach(function(v){f.push(v),m.push(null)}),p.push.apply(p,g.weights)}),h.forEach(function(g){g.paths.forEach(function(v){var b=new FileReader;b.onload=function(w){var S=w.target.result,L=f.indexOf(v);m[L]=S,m.indexOf(null)===-1&&a({modelTopology:c,weightSpecs:p,weightData:lc(m),format:u.format,generatedBy:u.generatedBy,convertedBy:u.convertedBy,userDefinedMetadata:u.userDefinedMetadata})},b.onerror=function(w){return s("Failed to weights data from file of path '"+v+"'.")},b.readAsArrayBuffer(d[v])})})},o.onerror=function(l){return s("Failed to read model topology and weights manifest JSON "+("from file '"+t.name+"'. BrowserFiles supports loading ")+"Keras-style tf.Model artifacts only.")},o.readAsText(t)})]})})},n.prototype.checkManifestAndWeightFiles=function(t,e){for(var i=[],r=e.map(function(u){return lm(u.name)}),a={},s=0,o=t;s<o.length;s++){var l=o[s];l.paths.forEach(function(u){var c=lm(u);if(i.indexOf(c)!==-1)throw new Error("Duplicate file basename found in weights manifest: "+("'"+c+"'"));if(i.push(c),r.indexOf(c)===-1)throw new Error("Weight file with basename '"+c+"' is not provided.");a[u]=e[r.indexOf(c)]})}if(i.length!==e.length)throw new Error("Mismatch in the number of files in weights manifest "+("("+i.length+") and the number of weight files provided ")+("("+e.length+")."));return a},n}(),dA=function(n){return He().getBool("IS_BROWSER")&&(!Array.isArray(n)&&n.startsWith(pc.URL_SCHEME))?hA(n.slice(pc.URL_SCHEME.length)):null};Qt.registerSaveRouter(dA);function hA(n){return n===void 0&&(n="model"),new pc(n)}function pA(n){return new cA(n)}function vm(n,t,e,i){s(n),e=e??0,i=i??1,o(e,i);var r=0,a=function(l){return l.then(function(u){var c=e+ ++r/n.length*(i-e);return t(c),u}),l};function s(l){E(l!=null&&Array.isArray(l)&&l.length>0,function(){return"promises must be a none empty array"})}function o(l,u){E(l>=0&&l<=1,function(){return"Progress fraction must be in range [0, 1], but "+("got startFraction "+l)}),E(u>=0&&u<=1,function(){return"Progress fraction must be in range [0, 1], but "+("got endFraction "+u)}),E(u>=l,function(){return"startFraction must be no more than endFraction, but "+("got startFraction "+l+" and endFraction ")+(""+u)})}return Promise.all(n.map(a))}function ym(n,t){return de(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u,c,h,d;return pe(this,function(p){switch(p.label){case 0:return t==null&&(t={}),e=t.fetchFunc==null?He().platform.fetch:t.fetchFunc,i=n.map(function(f){return e(f,t.requestInit,{isBinary:!0})}),r=0,a=.5,t.onProgress==null?[4,Promise.all(i)]:[3,2];case 1:return o=p.sent(),[3,4];case 2:return[4,vm(i,t.onProgress,r,a)];case 3:o=p.sent(),p.label=4;case 4:return s=o,l=s.map(function(f){return f.arrayBuffer()}),u=.5,c=1,t.onProgress==null?[4,Promise.all(l)]:[3,6];case 5:return d=p.sent(),[3,8];case 6:return[4,vm(l,t.onProgress,u,c)];case 7:d=p.sent(),p.label=8;case 8:return h=d,[2,h]}})})}function fA(n,t,e,i){return t===void 0&&(t=""),de(this,void 0,void 0,function(){var r,a;return pe(this,function(s){return r=function(o){return ym(o,{requestInit:i})},a=bm(r),[2,a(n,t,e)]})})}function bm(n){var t=this;return function(e,i,r){return i===void 0&&(i=""),de(t,void 0,void 0,function(){var a,s,o,l,u,c,h,d,p,f;return pe(this,function(m){switch(m.label){case 0:if(a=e.map(function(){return!1}),s={},o=r!=null?r.map(function(){return!1}):[],l=[],e.forEach(function(g,v){var b=0;g.weights.forEach(function(w){var S="quantization"in w?w.quantization.dtype:w.dtype,L=sc[S]*ot(w.shape),x=function(){a[v]=!0,s[v]==null&&(s[v]=[]),s[v].push({manifestEntry:w,groupOffset:b,sizeBytes:L})};r!=null?r.forEach(function(C,R){C===w.name&&(x(),o[R]=!0)}):x(),l.push(w.name),b+=L})}),!o.every(function(g){return g}))throw u=r.filter(function(g,v){return!o[v]}),new Error("Could not find weights in manifest with names: "+(u.join(", ")+`. 
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Please verify this URL points to ")+"the model JSON of the model to load.");g.label=2;case 2:return g.trys.push([2,4,,5]),[4,t.json()];case 3:return e=g.sent(),[3,5];case 4:throw i=g.sent(),r="Failed to parse model JSON of response from "+this.path+".",this.path.endsWith(".pb")?r+=" Your path contains a .pb file extension. Support for .pb models have been removed in TensorFlow.js 1.0 in favor of .json models. You can re-convert your Python TensorFlow model using the TensorFlow.js 1.0 conversion scripts or you can convert your.pb models with the 'pb2json'NPM script in the tensorflow/tfjs-converter repository.":r+=" Please make sure the server is serving valid JSON for this request.",new Error(r);case 5:if(a=e.modelTopology,s=e.weightsManifest,o=e.generatedBy,l=e.convertedBy,u=e.format,c=e.userDefinedMetadata,a==null&&s==null)throw new Error("The JSON from HTTP path "+this.path+" contains neither model topology or manifest for weights.");return s!=null?[4,this.loadWeights(s)]:[3,7];case 6:p=g.sent(),h=p[0],d=p[1],g.label=7;case 7:return f={modelTopology:a,weightSpecs:h,weightData:d,userDefinedMetadata:c,generatedBy:o,convertedBy:l,format:u},m=e.modelInitializer,m&&(f.modelInitializer=m),[2,f]}})})},n.prototype.loadWeights=function(t){return de(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u,c,h,d,p,f,m,g,v,b,w,S,L,x;return pe(this,function(C){switch(C.label){case 0:for(e=Array.isArray(this.path)?this.path[1]:this.path,i=vA(e),r=i[0],a=i[1],s=this.weightPathPrefix||r,o=[],l=0,u=t;l<u.length;l++)c=u[l],o.push.apply(o,c.weights);for(h=[],d=[],p=0,f=t;p<f.length;p++)for(m=f[p],g=0,v=m.paths;g<v.length;g++)b=v[g],this.weightUrlConverter!=null?d.push(this.weightUrlConverter(b)):h.push(s+b+a);return this.weightUrlConverter?(S=(w=h.push).apply,L=[h],[4,Promise.all(d)]):[3,2];case 1:S.apply(w,L.concat([C.sent()])),C.label=2;case 2:return[4,ym(h,{requestInit:this.requestInit,fetchFunc:this.fetch,onProgress:this.onProgress})];case 3:return x=C.sent(),[2,[o,lc(x)]]}})})},n.URL_SCHEME_REGEX=/^https?:\/\//,n}();function vA(n){var t=n.lastIndexOf("/"),e=n.lastIndexOf("?"),i=n.substring(0,t),r=e>t?n.substring(e):"";return[i+"/",r]}function fc(n){return n.match(wm.URL_SCHEME_REGEX)!=null}var Sm=function(n,t){if(typeof fetch=="undefined"&&(t==null||t.fetchFunc==null))return null;var e=!0;return Array.isArray(n)?e=n.every(function(i){return fc(i)}):e=fc(n),e?mc(n,t):null};Qt.registerSaveRouter(Sm);Qt.registerLoadRouter(Sm);function mc(n,t){return new wm(n,t)}function yA(n,t){return mc(n,t)}var gc=function(){function n(t){this.modelArtifacts=t}return n.prototype.load=function(){return de(this,void 0,void 0,function(){return pe(this,function(t){return[2,this.modelArtifacts]})})},n}(),bA=function(){function n(t){this.saveHandler=t}return n.prototype.save=function(t){return de(this,void 0,void 0,function(){return pe(this,function(e){return[2,this.saveHandler(t)]})})},n}();function wA(n,t,e,i){if(arguments.length===1){var r=n.modelTopology!=null||n.weightSpecs!=null;return r?new gc(n):(console.warn("Please call tf.io.fromMemory() with only one argument. 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")+"Labels and predictions should have the same number of elements."}),E(e>0&&Number.isInteger(e),function(){return"numClasses is required to be a positive integer, but got "+(""+e)});var a=Cs(ue(i,"int32"),e),s=Cs(ue(r,"int32"),e),o=ut(a);return ue(Fe(o,s),"int32")}var CA=U({confusionMatrix_:xA});var RA={__proto__:null,confusionMatrix:CA};function Lm(n,t,e){if(Ui(n),t!=null&&t.length!==3)throw new Error("tensor3d() requires shape to have three numbers");var i=On(n,e);if(i.length!==3&&i.length!==1)throw new Error("tensor3d() requires values to be number[][][] or flat/TypedArray");if(i.length===1&&t==null)throw new Error("tensor3d() requires shape to be provided when `values` are a flat array");return si(n,t,i,e)}var Rr;function OA(n,t){if(t===void 0&&(t=3),t>4)throw new Error("Cannot construct Tensor with more than 4 channels from pixels.");if(n==null)throw new Error("pixels passed to tf.browser.fromPixels() can not be null");var e=!1,i=!1,r=!1,a=!1,s=!1;if(n.data instanceof Uint8Array)e=!0;else if(typeof ImageData!="undefined"&&n instanceof ImageData)i=!0;else if(typeof HTMLVideoElement!="undefined"&&n instanceof HTMLVideoElement)r=!0;else if(typeof HTMLImageElement!="undefined"&&n instanceof HTMLImageElement)a=!0;else if(n.getContext!=null)s=!0;else throw new Error("pixels passed to tf.browser.fromPixels() must be either an HTMLVideoElement, HTMLImageElement, HTMLCanvasElement, ImageData in browser, or OffscreenCanvas, ImageData in webworker or {data: Uint32Array, width: number, height: number}, "+("but was "+n.constructor.name));if(r){var o=2;if(r&&n.readyState<o)throw new Error("The video element has not loaded data yet. Please wait for `loadeddata` event on the <video> element.")}var l=Ku(Hu,z.backendName);if(l!=null){var u={pixels:n},c={numChannels:t};return z.runKernel(Hu,u,c)}var h=r?[n.videoWidth,n.videoHeight]:[n.width,n.height],d=h[0],p=h[1],f;s?f=n.getContext("2d").getImageData(0,0,d,p).data:i||e?f=n.data:(a||r)&&(Rr==null&&(Rr=document.createElement("canvas").getContext("2d")),Rr.canvas.width=d,Rr.canvas.height=p,Rr.drawImage(n,0,0,d,p),f=Rr.getImageData(0,0,d,p).data);var m;if(t===4)m=new Int32Array(f);else{var g=d*p;m=new Int32Array(g*t);for(var v=0;v<g;v++)for(var b=0;b<t;++b)m[v*t+b]=f[v*4+b]}var w=[p,d,t];return Lm(m,w,"int32")}function EA(n,t){return de(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u,c,h,d,p,f,m,g,v;return pe(this,function(b){switch(b.label){case 0:if(e=O(n,"img","toPixels"),n instanceof Y||(i=e,e=ue(i,"int32"),i.dispose()),e.rank!==2&&e.rank!==3)throw new Error("toPixels only supports rank 2 or 3 tensors, got rank "+e.rank+".");if(r=e.shape.slice(0,2),a=r[0],s=r[1],o=e.rank===2?1:e.shape[2],o>4||o===2)throw new Error("toPixels only supports depth of size "+("1, 3 or 4 but got "+o));if(e.dtype!=="float32"&&e.dtype!=="int32")throw new Error("Unsupported type for toPixels: "+e.dtype+". 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s=O(n,"forgetBias","basicLSTMCell"),o=O(t,"lstmKernel","basicLSTMCell"),l=O(e,"lstmBias","basicLSTMCell"),u=O(i,"data","basicLSTMCell"),c=O(r,"c","basicLSTMCell"),h=O(a,"h","basicLSTMCell"),d=Ct([u,h],1),p=Fe(d,o),f=fe(p,l),m=f.shape[0],g=f.shape[1]/4,v=[m,g],b=Pe(f,[0,0],v),w=Pe(f,[0,g],v),S=Pe(f,[0,g*2],v),L=Pe(f,[0,g*3],v),x=fe(J(Mi(b),Ds(w)),J(c,Mi(fe(s,S)))),C=J(Ds(x),Mi(L));return[x,C]}var VT=U({basicLSTMCell_:HT});function qT(n,t,e){var i=O(n,"x","batchToSpaceND"),r=t.reduce(function(l,u){return l*u});E(i.rank>=1+t.length,function(){return"input rank is "+i.rank+" but should be > than blockShape.length "+t.length}),E(e.length===t.length,function(){return"crops.length is "+e.length+" but should be equal to blockShape.length  "+t.length}),E(i.shape[0]%r===0,function(){return"input tensor batch is "+i.shape[0]+" but is not divisible by the product of "+("the elements of blockShape "+t.join(" * ")+" === "+r)});var a=function(l){return 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1 "+("but got rank "+c.rank+".")}),Na(s,o,l,c,u,a)}var ZT=U({batchNorm4d_:JT});function QT(n,t){var e=O(n,"broadcastTo","x"),i=e.shape;if(t.some(function(d){return!(d>0)||d%1!==0}))throw new Error("broadcastTo(): Invalid broadcast shape ["+t+"].");if(t.length<e.rank)throw new Error("broadcastTo(): shape.length="+t.length+" < input.rank="+e.rank+".");if(t.length>e.rank){for(var r=e.shape.slice();r.length<t.length;)r.unshift(1);e=V(e,r)}for(var a=e.shape,s=Array.from(t),o=t.length-1;o>=0;o--)if(a[o]===t[o])s[o]=1;else if(e.shape[o]!==1)throw new Error("broadcastTo(): ["+i+"] cannot be broadcast to ["+t+"].");var l=s.map(function(d,p){return d>1?p:-1}).filter(function(d){return d>=0});if(l.length===0)return Pi(e);var u=function(d){return d.tile(e,s)},c={x:e},h={shape:t,inputShape:a};return z.runKernelFunc(u,c,null,wl,h)}var Ws=U({broadcastTo_:QT});function e1(n){var t=O(n,"x","ceil"),e={x:t};return z.runKernelFunc(function(i){return i.ceil(t)},e,null,Sl)}var ng=U({ceil_:e1});function t1(n,t,e){var i=O(n,"x","clipByValue");E(t<=e,function(){return"Error in clip: min ("+t+") must be "+("less than or equal to max ("+e+").")});var r={x:i},a={clipValueMin:t,clipValueMax:e};return z.runKernelFunc(function(s,o){var l=s.clip(i,t,e);return o([i]),l},r,null,Ll,a)}var ig=U({clipByValue_:t1});function n1(n){return Ct(n,0)}var i1=U({concat1d_:n1});function r1(n,t){return Ct(n,t)}var a1=U({concat2d_:r1});function s1(n,t){return Ct(n,t)}var o1=U({concat3d_:s1});function l1(n,t){return Ct(n,t)}var u1=U({concat4d_:l1});function c1(n,t,e,i,r,a,s){r===void 0&&(r="NHWC"),a===void 0&&(a=[1,1]);var o=O(n,"x","conv2d"),l=O(t,"filter","conv2d"),u=o,c=!1;o.rank===3&&(c=!0,u=V(o,[1,o.shape[0],o.shape[1],o.shape[2]])),E(u.rank===4,function(){return"Error in conv2d: input must be rank 4, but got rank "+u.rank+"."}),E(l.rank===4,function(){return"Error in conv2d: filter must be rank 4, but got rank "+(l.rank+".")}),s!=null&&E(rt(i),function(){return"Error in conv2d: pad must be an integer when 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"+("Got stride "+e+" and dilation '"+a+"'")}),E(r==="NWC",function(){return"Error in conv1d: got dataFormat of "+r+" but only NWC is currently supported."});var h=V(l,[1,l.shape[0],l.shape[1],l.shape[2]]),d=V(u,[u.shape[0],1,u.shape[1],u.shape[2]]),p=[1,e],f=[1,a],m="NHWC",g=Dr(d,h,p,i,m,f,s);return c?V(g,[g.shape[2],g.shape[3]]):V(g,[g.shape[0],g.shape[2],g.shape[3]])}var rg=U({conv1d_:h1});function d1(n,t,e,i,r,a,s){a===void 0&&(a="NHWC"),E(n.length===t.rank,function(){return"Length of inShape "+("("+n.length+") and rank of dy ("+t.rank+") must match")});var o=n,l=t,u=!1;t.rank===3&&(u=!0,l=V(t,[1,t.shape[0],t.shape[1],t.shape[2]]),o=[1,n[0],n[1],n[2]]),E(o.length===4,function(){return"Error in conv2dDerInput: inShape must be length 4, but got length "+(o.length+".")}),E(l.rank===4,function(){return"Error in conv2dDerInput: dy must be rank 4, but got "+("rank "+l.rank)}),E(e.rank===4,function(){return"Error in conv2dDerInput: filter must be rank 4, but got "+("rank "+e.rank)});var c=a==="NHWC"?o[3]:o[1],h=a==="NHWC"?l.shape[3]:l.shape[1];E(c===e.shape[2],function(){return"Error in conv2dDerInput: depth of input ("+c+") must "+("match input depth for filter "+e.shape[2]+".")}),E(h===e.shape[3],function(){return"Error in conv2dDerInput: depth of output ("+h+") must "+("match output depth for filter "+e.shape[3]+".")}),s!=null&&E(rt(r),function(){return"Error in conv2dDerInput: pad must be an integer when using, "+("dimRoundingMode "+s+" but got pad "+r+".")});var d=function(g,v){var b=1,w=Ia(a),S=kn(o,e.shape,i,b,r,s,!1,w),L=g.conv2dDerInput(l,e,S);return v([l,e]),L},p={dy:l,filter:e},f={strides:i,pad:r,dataFormat:a,dimRoundingMode:s,inputShape:o},m=z.runKernelFunc(d,p,null,Tl,f);return u?V(m,[m.shape[1],m.shape[2],m.shape[3]]):m}var Cc=U({conv2DBackpropInput_:d1});function p1(n,t,e,i,r,a){var s=O(n,"x","conv2dTranspose"),o=O(t,"filter","conv2dTranspose");return Cc(e,s,o,i,r,"NHWC",a)}var ag=U({conv2dTranspose_:p1});function f1(n,t,e,i,r,a){r===void 0&&(r="NDHWC"),a===void 0&&(a=[1,1,1]);var s=O(n,"x","conv3d"),o=O(t,"filter","conv3d"),l=s,u=!1;s.rank===4&&(u=!0,l=V(s,[1,s.shape[0],s.shape[1],s.shape[2],s.shape[3]])),E(l.rank===5,function(){return"Error in conv3d: input must be rank 5, but got rank "+l.rank+"."}),E(o.rank===5,function(){return"Error in conv3d: filter must be rank 5, but got rank "+(o.rank+".")}),E(l.shape[4]===o.shape[3],function(){return"Error in conv3d: depth of input ("+l.shape[4]+") must match "+("input depth for filter "+o.shape[3]+".")}),E(_t(e,a),function(){return"Error in conv3D: Either strides or dilations must be 1. 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i=n.subarray(t*4,t*4+4),r=n.subarray(e*4,e*4+4),a=Math.min(i[0],i[2]),s=Math.min(i[1],i[3]),o=Math.max(i[0],i[2]),l=Math.max(i[1],i[3]),u=Math.min(r[0],r[2]),c=Math.min(r[1],r[3]),h=Math.max(r[0],r[2]),d=Math.max(r[1],r[3]),p=(o-a)*(l-s),f=(h-u)*(d-c);if(p<=0||f<=0)return 0;var m=Math.max(a,u),g=Math.max(s,c),v=Math.min(o,h),b=Math.min(l,d),w=Math.max(v-m,0)*Math.max(b-g,0);return w/(p+f-w)}function xR(n,t,e){var i=Math.exp(t*e*e);return e<=n?i:0}function cv(n,t){return n.score-t.score||n.score===t.score&&t.boxIndex-n.boxIndex}function CR(n,t,e,i,r){return i===void 0&&(i=.5),r===void 0&&(r=Number.NEGATIVE_INFINITY),de(this,void 0,void 0,function(){var a,s,o,l,u,c,h;return pe(this,function(d){switch(d.label){case 0:return a=O(n,"boxes","nonMaxSuppressionAsync"),s=O(t,"scores","nonMaxSuppressionAsync"),o=_r(a,s,e,i,r),e=o.maxOutputSize,i=o.iouThreshold,r=o.scoreThreshold,[4,Promise.all([a.data(),s.data()])];case 1:return 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1:return[2,[e.sent()].concat(this.accumulatedGrads.map(function(i){return{name:i.originalName,tensor:i.variable}}))]}})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){var i;return pe(this,function(r){switch(r.label){case 0:return[4,this.extractIterations(e)];case 1:return e=r.sent(),i=!1,this.accumulatedGrads=e.map(function(a){return{originalName:a.name,variable:a.tensor.variable(i)}}),[2]}})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,initialAccumulatorValue:this.initialAccumulatorValue}},t.fromConfig=function(e,i){return new e(i.learningRate,i.initialAccumulatorValue)},t.className="Adagrad",t}(pi);ci(th);var nh=function(n){qn(t,n);function t(e,i,r,a){a===void 0&&(a=null);var s=n.call(this)||this;return s.learningRate=e,s.beta1=i,s.beta2=r,s.epsilon=a,s.accumulatedFirstMoment=[],s.accumulatedSecondMoment=[],ft(function(){s.accBeta1=we(i).variable(),s.accBeta2=we(r).variable()}),a==null&&(s.epsilon=z.backend.epsilon()),s}return t.prototype.applyGradients=function(e){var i=this,r=Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e);ft(function(){var a=ge(1,i.accBeta1),s=ge(1,i.accBeta2);r.forEach(function(o,l){var u=z.registeredVariables[o],c=!1;i.accumulatedFirstMoment[l]==null&&(i.accumulatedFirstMoment[l]={originalName:o+"/m",variable:ft(function(){return Ee(u).variable(c)})}),i.accumulatedSecondMoment[l]==null&&(i.accumulatedSecondMoment[l]={originalName:o+"/v",variable:ft(function(){return Ee(u).variable(c)})});var h=Array.isArray(e)?e[l].tensor:e[o];if(h==null)return;var d=i.accumulatedFirstMoment[l].variable,p=i.accumulatedSecondMoment[l].variable,f=fe(J(d,i.beta1),J(h,1-i.beta1)),m=fe(J(p,i.beta2),J(Ye(h),1-i.beta2)),g=Ie(f,a),v=Ie(m,s);d.assign(f),p.assign(m);var b=fe(J(Ie(g,fe(Mt(v),i.epsilon)),-i.learningRate),u);u.assign(b)}),i.accBeta1.assign(J(i.accBeta1,i.beta1)),i.accBeta2.assign(J(i.accBeta2,i.beta2))}),this.incrementIterations()},t.prototype.dispose=function(){this.accBeta1.dispose(),this.accBeta2.dispose(),this.accumulatedFirstMoment!=null&&Pt(this.accumulatedFirstMoment.map(function(e){return e.variable})),this.accumulatedSecondMoment!=null&&Pt(this.accumulatedSecondMoment.map(function(e){return e.variable}))},t.prototype.getWeights=function(){return de(this,void 0,void 0,function(){var e;return pe(this,function(i){switch(i.label){case 0:return e=this.accumulatedFirstMoment.concat(this.accumulatedSecondMoment),[4,this.saveIterations()];case 1:return[2,[i.sent()].concat(e.map(function(r){return{name:r.originalName,tensor:r.variable}}))]}})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){var i,r,a=this;return pe(this,function(s){switch(s.label){case 0:return[4,this.extractIterations(e)];case 1:return e=s.sent(),ft(function(){a.accBeta1.assign(jn(a.beta1,a.iterations_+1)),a.accBeta2.assign(jn(a.beta2,a.iterations_+1))}),i=e.length/2,r=!1,this.accumulatedFirstMoment=e.slice(0,i).map(function(o){return{originalName:o.name,variable:o.tensor.variable(r)}}),this.accumulatedSecondMoment=e.slice(i,i*2).map(function(o){return{originalName:o.name,variable:o.tensor.variable(r)}}),[2]}})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon}},t.fromConfig=function(e,i){return new e(i.learningRate,i.beta1,i.beta2,i.epsilon)},t.className="Adam",t}(pi);ci(nh);var ih=function(n){qn(t,n);function t(e,i,r,a,s){a===void 0&&(a=null),s===void 0&&(s=0);var o=n.call(this)||this;return o.learningRate=e,o.beta1=i,o.beta2=r,o.epsilon=a,o.decay=s,o.accumulatedFirstMoment=[],o.accumulatedWeightedInfNorm=[],ft(function(){o.iteration=we(0).variable(),o.accBeta1=we(i).variable()}),a==null&&(o.epsilon=z.backend.epsilon()),o}return t.prototype.applyGradients=function(e){var i=this,r=Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e);ft(function(){var a=ge(1,i.accBeta1),s=Ie(-i.learningRate,fe(J(i.iteration,i.decay),1));r.forEach(function(o,l){var u=z.registeredVariables[o],c=!1;i.accumulatedFirstMoment[l]==null&&(i.accumulatedFirstMoment[l]={originalName:o+"/m",variable:Ee(u).variable(c)}),i.accumulatedWeightedInfNorm[l]==null&&(i.accumulatedWeightedInfNorm[l]={originalName:o+"/v",variable:Ee(u).variable(c)});var h=Array.isArray(e)?e[l].tensor:e[o];if(h==null)return;var d=i.accumulatedFirstMoment[l].variable,p=i.accumulatedWeightedInfNorm[l].variable,f=fe(J(d,i.beta1),J(h,1-i.beta1)),m=J(p,i.beta2),g=Gt(h),v=Fr(m,g);d.assign(f),p.assign(v);var b=fe(J(Ie(s,a),Ie(f,fe(v,i.epsilon))),u);u.assign(b)}),i.iteration.assign(fe(i.iteration,1)),i.accBeta1.assign(J(i.accBeta1,i.beta1))}),this.incrementIterations()},t.prototype.dispose=function(){this.accBeta1.dispose(),this.iteration.dispose(),this.accumulatedFirstMoment!=null&&Pt(this.accumulatedFirstMoment.map(function(e){return e.variable})),this.accumulatedWeightedInfNorm!=null&&Pt(this.accumulatedWeightedInfNorm.map(function(e){return e.variable}))},t.prototype.getWeights=function(){return de(this,void 0,void 0,function(){return pe(this,function(e){throw new Error("getWeights() is not implemented for Adamax yet.")})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){return pe(this,function(i){throw new Error("setWeights() is not implemented for Adamax yet.")})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,beta1:this.beta1,beta2:this.beta2,epsilon:this.epsilon,decay:this.decay}},t.fromConfig=function(e,i){return new e(i.learningRate,i.beta1,i.beta2,i.epsilon,i.decay)},t.className="Adamax",t}(pi);ci(ih);var io=function(n){qn(t,n);function t(e){var i=n.call(this)||this;return i.learningRate=e,i.setLearningRate(e),i}return t.prototype.applyGradients=function(e){var i=this,r=Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e);r.forEach(function(a,s){var o=Array.isArray(e)?e[s].tensor:e[a];if(o==null)return;var l=z.registeredVariables[a];ft(function(){var u=fe(J(i.c,o),l);l.assign(u)})}),this.incrementIterations()},t.prototype.setLearningRate=function(e){this.learningRate=e,this.c!=null&&this.c.dispose(),this.c=_m(we(-e))},t.prototype.dispose=function(){this.c.dispose()},t.prototype.getWeights=function(){return de(this,void 0,void 0,function(){return pe(this,function(e){switch(e.label){case 0:return[4,this.saveIterations()];case 1:return[2,[e.sent()]]}})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){return pe(this,function(i){switch(i.label){case 0:return[4,this.extractIterations(e)];case 1:if(e=i.sent(),e.length!==0)throw new Error("SGD optimizer does not have settable weights.");return[2]}})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate}},t.fromConfig=function(e,i){return new e(i.learningRate)},t.className="SGD",t}(pi);ci(io);var rh=function(n){qn(t,n);function t(e,i,r){r===void 0&&(r=!1);var a=n.call(this,e)||this;return a.learningRate=e,a.momentum=i,a.useNesterov=r,a.accumulations=[],a.m=we(a.momentum),a}return t.prototype.applyGradients=function(e){var i=this,r=Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e);r.forEach(function(a,s){var o=z.registeredVariables[a];if(i.accumulations[s]==null){var l=!1;i.accumulations[s]={originalName:a+"/momentum",variable:ft(function(){return Ee(o).variable(l)})}}var u=i.accumulations[s].variable,c=Array.isArray(e)?e[s].tensor:e[a];if(c==null)return;ft(function(){var h,d=fe(J(i.m,u),c);i.useNesterov?h=fe(J(i.c,fe(c,J(d,i.m))),o):h=fe(J(i.c,d),o),u.assign(d),o.assign(h)})}),this.incrementIterations()},t.prototype.dispose=function(){this.m.dispose(),this.accumulations!=null&&Pt(this.accumulations.map(function(e){return e.variable}))},t.prototype.setMomentum=function(e){this.momentum=e},t.prototype.getWeights=function(){return de(this,void 0,void 0,function(){return pe(this,function(e){switch(e.label){case 0:return[4,this.saveIterations()];case 1:return[2,[e.sent()].concat(this.accumulations.map(function(i){return{name:i.originalName,tensor:i.variable}}))]}})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){var i;return pe(this,function(r){switch(r.label){case 0:return[4,this.extractIterations(e)];case 1:return e=r.sent(),i=!1,this.accumulations=e.map(function(a){return{originalName:a.name,variable:a.tensor.variable(i)}}),[2]}})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,momentum:this.momentum,useNesterov:this.useNesterov}},t.fromConfig=function(e,i){return new e(i.learningRate,i.momentum,i.useNesterov)},t.className="Momentum",t}(io);ci(rh);var ah=function(n){qn(t,n);function t(e,i,r,a,s){i===void 0&&(i=.9),r===void 0&&(r=0),a===void 0&&(a=null),s===void 0&&(s=!1);var o=n.call(this)||this;if(o.learningRate=e,o.decay=i,o.momentum=r,o.epsilon=a,o.accumulatedMeanSquares=[],o.accumulatedMoments=[],o.accumulatedMeanGrads=[],o.centered=s,a==null&&(o.epsilon=z.backend.epsilon()),e==null)throw new Error("learningRate for RMSPropOptimizer must be defined.");return o}return t.prototype.applyGradients=function(e){var i=this,r=Array.isArray(e)?e.map(function(a){return a.name}):Object.keys(e);r.forEach(function(a,s){var o=z.registeredVariables[a],l=!1;i.accumulatedMeanSquares[s]==null&&(i.accumulatedMeanSquares[s]={originalName:a+"/rms",variable:ft(function(){return Ee(o).variable(l)})}),i.accumulatedMoments[s]==null&&(i.accumulatedMoments[s]={originalName:a+"/momentum",variable:ft(function(){return Ee(o).variable(l)})}),i.accumulatedMeanGrads[s]==null&&i.centered&&(i.accumulatedMeanGrads[s]={originalName:a+"/mg",variable:ft(function(){return Ee(o).variable(l)})});var u=Array.isArray(e)?e[s].tensor:e[a];if(u==null)return;var c=i.accumulatedMeanSquares[s].variable,h=i.accumulatedMoments[s].variable;ft(function(){var d=fe(J(c,i.decay),J(Ye(u),1-i.decay));if(i.centered){var p=i.accumulatedMeanGrads[s].variable,f=fe(J(p,i.decay),J(u,1-i.decay)),m=Ie(J(u,i.learningRate),Mt(ge(d,fe(Ye(f),i.epsilon)))),g=fe(J(h,i.momentum),m);c.assign(d),p.assign(f),h.assign(g);var v=ge(o,g);o.assign(v)}else{var b=fe(J(c,i.decay),J(Ye(u),1-i.decay)),g=fe(J(h,i.momentum),Ie(J(u,i.learningRate),Mt(fe(b,i.epsilon))));c.assign(b),h.assign(g);var v=ge(o,g);o.assign(v)}})}),this.incrementIterations()},t.prototype.dispose=function(){this.accumulatedMeanSquares!=null&&Pt(this.accumulatedMeanSquares.map(function(e){return e.variable})),this.accumulatedMeanGrads!=null&&this.centered&&Pt(this.accumulatedMeanGrads.map(function(e){return e.variable})),this.accumulatedMoments!=null&&Pt(this.accumulatedMoments.map(function(e){return e.variable}))},t.prototype.getWeights=function(){return de(this,void 0,void 0,function(){var e;return pe(this,function(i){switch(i.label){case 0:return e=this.accumulatedMeanSquares.concat(this.accumulatedMoments),this.centered&&e.push.apply(e,this.accumulatedMeanGrads),[4,this.saveIterations()];case 1:return[2,[i.sent()].concat(e.map(function(r){return{name:r.originalName,tensor:r.variable}}))]}})})},t.prototype.setWeights=function(e){return de(this,void 0,void 0,function(){var i,r;return pe(this,function(a){switch(a.label){case 0:return[4,this.extractIterations(e)];case 1:return e=a.sent(),i=this.centered?e.length/3:e.length/2,r=!1,this.accumulatedMeanSquares=e.slice(0,i).map(function(s){return{originalName:s.name,variable:s.tensor.variable(r)}}),this.accumulatedMoments=e.slice(i,i*2).map(function(s){return{originalName:s.name,variable:s.tensor.variable(r)}}),this.centered&&(this.accumulatedMeanGrads=e.slice(i*2,i*3).map(function(s){return{originalName:s.name,variable:s.tensor.variable(r)}})),[2]}})})},t.prototype.getConfig=function(){return{learningRate:this.learningRate,decay:this.decay,momentum:this.momentum,epsilon:this.epsilon,centered:this.centered}},t.fromConfig=function(e,i){return new e(i.learningRate,i.decay,i.momentum,i.epsilon,i.centered)},t.className="RMSProp",t}(pi);ci(ah);var Ji=function(){function n(){}return n.sgd=function(t){return new io(t)},n.momentum=function(t,e,i){return i===void 0&&(i=!1),new 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i==null?a=Qi(null,e.length):a=Je(i),r.runInternalGraph(e,a)[1]})},t.prototype.computeOutputShape=function(e){var i=uo(e);if(i.length!==this.inputLayers.length)throw new M("Invalid inputShape argument "+e+": "+("model has "+this.inputLayers.length+" tensor inputs."));for(var r={},a=0;a<i.length;a++){var s=this.inputLayers[a],o=i[a],l=s.name+"_0_0";r[l]=o}var u=Object.keys(this.nodesByDepth).map(function(P){return parseInt(P,10)}).sort(ro);if(u.length>1)for(var c=0,h=u;c<h.length;c++)for(var d=h[c],p=this.nodesByDepth[d],f=0,m=p;f<m.length;f++){var g=m[f],s=g.outboundLayer;if(this.inputLayers.map(function(H){return H.id}).indexOf(s.id)!==-1)continue;for(var v=[],b=0;b<g.inboundLayers.length;b++){var w=g.inboundLayers[b],S=g.nodeIndices[b],L=g.tensorIndices[b],l=w.name+"_"+S+"_"+L,x=r[l];v.push(x)}for(var C=s.computeOutputShape(Ht(v)),R=uo(C),D=s.inboundNodes.indexOf(g),b=0;b<R.length;b++){var l=s.name+"_"+D+"_"+b;r[l]=R[b]}}for(var k=[],W=[],a=0;a<this.outputLayers.length;a++){var s=this.outputLayers[a],D=this.outputLayersNodeIndices[a],L=this.outputLayersTensorIndices[a],l=s.name+"_"+D+"_"+L;W.push(l)}for(var a=0;a<W.length;a++){var F=W[a];Un(F in r),k.push(r[F])}return Ht(k)},t.prototype.runInternalGraph=function(e,i){i==null&&(i=Qi(null,e.length));for(var r={},a=0;a<this.inputs.length;++a){var s=this.inputs[a],o=e[a],l=i[a];r[s.id]=[o,l]}for(var u=Object.keys(this.nodesByDepth).map(function(ee){return parseInt(ee,10)}).sort(ro),c=0,h=u;c<h.length;c++)for(var d=h[c],p=this.nodesByDepth[d],f=0,m=p;f<m.length;f++){for(var g=m[f],v=g.outboundLayer,b=g.inputTensors,w=g.outputTensors,S=new Array,L=0,x=b;L<x.length;L++){var s=x[L];s.id in r&&S.push(r[s.id])}if(S.length===b.length){var C={},R=void 0,D=void 0,k=void 0,W=void 0;if(g.callArgs!=null&&(C=g.callArgs),S.length===1){var F=S[0],P=F[0],H=F[1];C.mask==null&&(C.mask=H),k=Je(v.call(P,C)),W=Je(v.computeMask(P,H)),R=[P],D=[H]}else R=S.map(function(ee){return ee[0]}),D=S.map(function(ee){return 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Use LayersModel.compile(modelCompileConfig)."}),y.util.assert(e!=null,function(){return"For fitDataset(), the 2nd argument (config) is required, but it is not provided in this call."}),y.util.assert(e.epochs!=null&&e.epochs>0&&Number.isInteger(e.epochs),function(){return"For fitDataset(), config.epochs is expected to be a positive "+("integer, but got "+e.epochs)}),y.util.assert(!i||e.batchesPerEpoch>0&&Number.isInteger(e.batchesPerEpoch),function(){return"For fitDataset(), config.batchesPerEpoch is expected to be a "+("positive integer if specified, but got "+e.batchesPerEpoch)}),y.util.assert(e.validationSplit==null,function(){return"`validationSplit` is not supported by `fitDataset()`. Use validationData instead."}),n.isTraining)throw new Error("Cannot start training because another fit() call is ongoing.");n.isTraining=!0,X.label=1;case 1:return X.trys.push([1,,26,27]),r=e.validationData!=null,a=void 0,s=void 0,r&&(Ay(e.validationData)?y.util.assert(e.validationBatches==null||e.validationBatches>0&&Number.isInteger(e.validationBatches),function(){return"For fitDataset() with dataset-based validation, config.validationBatches is expected not to be provided, or to be a positive integer, "+("but got "+e.validationBatches)}):(o=I3(e.validationData),a=o.xs,s=o.ys)),l=n.makeTrainFunction(),u=n.getDedupedMetricsNames(),c=void 0,r?c=u.slice().concat(u.map(function(ee){return"val_"+ee})):c=u.slice(),h=oy(e.callbacks,e.yieldEvery),d=e.verbose==null?1:e.verbose,p=uy(h,d,e.epochs,null,null,A3(t,e),null,r,c),f=p.callbackList,m=p.history,f.setModel(n),n.history=m,[4,f.onTrainBegin()];case 2:return X.sent(),n.stopTraining_=!1,g=e.initialEpoch==null?0:e.initialEpoch,[4,t.iterator()];case 3:v=X.sent(),X.label=4;case 4:return g<e.epochs?(b={},[4,f.onEpochBegin(g)]):[3,23];case 5:return X.sent(),w=0,S=0,i?[3,7]:[4,t.iterator()];case 6:v=X.sent(),X.label=7;case 7:return(i?w<e.batchesPerEpoch:!0)?[4,v.next()]:[3,21];case 8:return L=X.sent(),i&&L.done?(console.warn("You provided `batchesPerEpoch` as "+(e.batchesPerEpoch+", ")+"but your dataset iterator ran out of data after "+(w+" batches; ")+"interrupting training. Make sure that your dataset can generate at least `batchesPerEpoch * epochs` batches (in this case, "+(e.batchesPerEpoch*e.epochs+" batches). 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We assume this was done on purpose, and we will not be expecting data '+("to be passed to "+l+" during training")),r.push(Ch(e.loss[l]))}}else if(Array.isArray(e.loss)){if(e.loss.length!==this.outputs.length)throw new M("When passing an Array as loss, it should have one entry per "+("model output. 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Did you set `model.trainable` without calling `model.compile()` afterwards?")},t.prototype.evaluate=function(e,i,r){r===void 0&&(r={});var a=r.batchSize==null?32:r.batchSize;Uh(a);var s=!0,o=this.standardizeUserDataXY(e,i,s,a);try{var l=o[0].concat(o[1]);this.makeTestFunction();var u=this.testFunction,c=this.testLoop(u,l,a,r.verbose,r.steps);return Ht(c)}finally{rr(o[0],e),rr(o[1],i)}},t.prototype.evaluateDataset=function(e,i){return Le(this,void 0,void 0,function(){return ve(this,function(r){return this.makeTestFunction(),[2,x3(this,e,i)]})})},t.prototype.checkNumSamples=function(e,i,r,a){a===void 0&&(a="steps");var s;if(r!=null){if(s=null,i!=null)throw new M("If "+a+" is set, batchSize must be null or undefined."+("Got batchSize = "+i))}else if(e!=null)Array.isArray(e)?s=e[0].shape[0]:s=e.shape[0];else throw new M("Either the input data should have a defined shape, or "+(a+" shoud be specified."));return s},t.prototype.execute=function(e,i){if(Array.isArray(i)&&i.length===0)throw new M("`outputs` is an empty Array, which is not allowed.");var r=Array.isArray(i),a=r?i:[i],s=this.retrieveSymbolicTensors(a),o=new Yr;if(e instanceof y.Tensor&&(e=[e]),Array.isArray(e)){if(e.length!==this.inputs.length)throw new M("The number of inputs provided ("+e.length+") does not match the number of inputs of this model "+("("+this.inputs.length+")."));for(var l=0;l<this.inputs.length;++l)o.add(this.inputs[l],e[l])}else for(var u=0,c=this.inputs;u<c.length;u++){var h=c[u],d=e[h.name];if(d==null)throw new M("No value is provided for the model's input "+h.name);o.add(h,d)}var p=qa(s,o);return r?p:p[0]},t.prototype.retrieveSymbolicTensors=function(e){for(var i=Qi(null,e.length),r=e.length,a=0,s=this.layers;a<s.length;a++){for(var o=s[a],l=Array.isArray(o.output)?o.output:[o.output],u=l.map(function(p){return p.name}),c=0;c<e.length;++c){var h=u.indexOf(e[c]);if(h!==-1&&(i[c]=l[h],r--),r===0)break}if(r===0)break}if(r>0){var d=[];throw i.forEach(function(p,f){p==null&&d.push(e[f])}),new M("Cannot find SymbolicTensors for output name(s): "+(""+JSON.stringify(d)))}return i},t.prototype.predictLoop=function(e,i,r){var a=this;return i===void 0&&(i=32),r===void 0&&(r=!1),y.tidy(function(){var s=a.checkNumSamples(e);if(r)throw new Te("Verbose predictLoop() is not implemented yet.");for(var o=zh(s,i),l=a.outputs.map(function(h){return[]}),u=function(h){var d=y.tidy(function(){var p=o[h][0],f=o[h][1],m=Ga(e,p,f),g=[];if(Array.isArray(m))for(var v=0;v<m.length;++v)g.push({key:a.inputs[v],value:m[v]});else g.push({key:a.inputs[0],value:m});var b=new Yr(g);return qa(a.outputs,b)});d.forEach(function(p,f){return l[f].push(p)})},c=0;c<o.length;++c)u(c);return Ht(l.map(function(h){return y.concat(h,0)}))})},t.prototype.predict=function(e,i){i===void 0&&(i={});var r=Ty(e);Cy(r,this.inputNames,this.feedInputShapes,!1);try{var a=i.batchSize==null?32:i.batchSize;return Uh(a),this.predictLoop(r,a)}finally{rr(r,e)}},t.prototype.predictOnBatch=function(e){Cy(e,this.inputNames,this.feedInputShapes,!0);var i=(Array.isArray(e)?e[0]:e).shape[0];return this.predictLoop(e,i)},t.prototype.standardizeUserDataXY=function(e,i,r,a){if(this.optimizer_==null)throw new Wn("You must compile a model before training/testing. Use LayersModel.compile(modelCompileArgs).");for(var s=[],o=0;o<this.feedOutputShapes.length;++o){var l=this.feedOutputShapes[o],u=this.feedLossFns[o];u===mo?s.push(l.slice(0,l.length-1).concat([1])):s.push(l)}if(e=xy(e,this.feedInputNames,this.feedInputShapes,!1,"input"),i=xy(i,this.feedOutputNames,s,!1,"target"),E3(e,i),D3(i,this.feedLossFns,this.feedOutputShapes),this.stateful&&a!=null&&a>0&&e[0].shape[0]%a!==0)throw new M("In a stateful network, you should only pass inputs with a number of samples that is divisible by the batch size "+(a+". 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0;if(e.outputs.length>1&&f<e.outputs.length)L=r[f];else{var x=e.metricsTensors[f][0],C=e.metricsTensors[f][1];L=y.mean(x(s[C],g[C]))}y.keep(L),l.push(L)}return v=y.mean(v),e.calculateLosses().forEach(function(R){v=y.add(v,R)}),v},c=e.collectedTrainableWeights.map(function(p){return p.read()}),h=!0,d=e.optimizer_.minimize(u,h,c);return[d].concat(l)}},t.prototype.makeTestFunction=function(){var e=this;this.testFunction=function(i){return y.tidy(function(){for(var r=[],a,s=i.slice(0,e.inputs.length),o=i.slice(e.inputs.length,e.inputs.length+e.outputs.length),l=[],u=0;u<e.inputs.length;++u)l.push({key:e.inputs[u],value:s[u]});for(var c=new Yr(l),h=qa(e.outputs,c),u=0;u<e.lossFunctions.length;++u){var d=e.lossFunctions[u],p=y.mean(d(o[u],h[u]));u===0?a=p:a=y.add(a,p),r.push(a)}for(var u=0;u<e.metricsTensors.length;++u){var f=e.metricsTensors[u][0],m=e.metricsTensors[u][1],g=y.mean(f(o[m],h[m]));r.push(g)}return r})}},t.prototype.fit=function(e,i,r){return r===void 0&&(r={}),Le(this,void 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this.stopTraining_},set:function(e){this.stopTraining_=e},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"optimizer",{get:function(){return this.optimizer_},set:function(e){this.optimizer_!==e&&(this.optimizer_=e,this.isOptimizerOwned=!1)},enumerable:!0,configurable:!0}),t.prototype.dispose=function(){var e=n.prototype.dispose.call(this);if(e.refCountAfterDispose===0&&this.optimizer!=null&&this.isOptimizerOwned){var i=y.memory().numTensors;this.optimizer_.dispose(),e.numDisposedVariables+=i-y.memory().numTensors}return e},t.prototype.getLossIdentifiers=function(){var e;if(typeof this.loss=="string")e=Jn(this.loss);else if(Array.isArray(this.loss)){for(var i=0,r=this.loss;i<r.length;i++){var a=r[i];if(typeof a!="string")throw new Error("Serialization of non-string loss is not supported.")}e=this.loss.map(function(h){return Jn(h)})}else{var s=Object.keys(this.loss);e={};for(var o=this.loss,l=0,u=s;l<u.length;l++){var c=u[l];if(typeof o[c]=="string")e[c]=Jn(o[c]);else throw new Error("Serialization of non-string loss is not supported.")}}return e},t.prototype.getMetricIdentifiers=function(){if(typeof this.metrics=="string"||typeof this.metrics=="function")return[Jn(bo(this.metrics))];if(Array.isArray(this.metrics))return this.metrics.map(function(r){return Jn(bo(r))});var e={};for(var i in this.metrics)e[i]=Jn(bo(this.metrics[i]));return e},t.prototype.getTrainingConfig=function(){return{loss:this.getLossIdentifiers(),metrics:this.getMetricIdentifiers(),optimizer_config:{class_name:this.optimizer.getClassName(),config:this.optimizer.getConfig()}}},t.prototype.loadTrainingConfig=function(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.");var i=Va(e.optimizer_config),r=wn(i),a;if(typeof e.loss=="string")a=er(e.loss);else if(Array.isArray(e.loss))a=e.loss.map(function(l){return er(l)});else if(e.loss!=null){a={};for(var s in e.loss)a[s]=er(e.loss[s])}var o;if(Array.isArray(e.metrics))o=e.metrics.map(function(l){return er(l)});else if(e.metrics!=null){o={};for(var s in e.metrics)o[s]=er(e.metrics[s])}this.compile({loss:a,metrics:o,optimizer:r})},t.prototype.save=function(e,i){return Le(this,void 0,void 0,function(){var r,a,s,o,l,u,c,h,d,p,f,m,g,v,b;return ve(this,function(w){switch(w.label){case 0:if(typeof e=="string"){if(r=y.io.getSaveHandlers(e),r.length===0)throw new M("Cannot find any save handlers for URL '"+e+"'");if(r.length>1)throw new M("Found more than one ("+r.length+") save handlers for "+("URL '"+e+"'"));e=r[0]}if(e.save==null)throw new M("LayersModel.save() cannot proceed because the IOHandler provided does not have the `save` attribute defined.");return[4,y.io.encodeWeights(this.getNamedWeights(i))];case 1:return a=w.sent(),s=!1,o=null,l=this.toJSON(o,s),u={modelTopology:l,format:F3,generatedBy:"TensorFlow.js tfjs-layers v"+Fh,convertedBy:null},c=i==null?!1:i.includeOptimizer,c&&this.optimizer!=null?(u.trainingConfig=this.getTrainingConfig(),h="optimizer",g=(m=y.io).encodeWeights,[4,this.optimizer.getWeights()]):[3,4];case 2:return[4,g.apply(m,[w.sent(),h])];case 3:d=w.sent(),p=d.data,f=d.specs,(b=a.specs).push.apply(b,f),a.data=y.io.concatenateArrayBuffers([a.data,p]),w.label=4;case 4:return this.userDefinedMetadata!=null&&(v=!0,gy(this.userDefinedMetadata,this.name,v),u.userDefinedMetadata=this.userDefinedMetadata),u.weightData=a.data,u.weightSpecs=a.specs,[2,e.save(u)]}})})},t.prototype.setUserDefinedMetadata=function(e){gy(e,this.name),this.userDefinedMetadata=e},t.prototype.getUserDefinedMetadata=function(){return this.userDefinedMetadata},t.className="Model",t}(b3);y.serialization.registerClass(bi);var W3=function(n){Q(t,n);function t(){return n!==null&&n.apply(this,arguments)||this}return t.className="Functional",t}(bi);y.serialization.registerClass(W3);function U3(n,t){return Le(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u;return ve(this,function(c){switch(c.label){case 0:return"modelTopology"in n||(n={modelTopology:n}),n=n,e=n.modelTopology,e.model_config!=null&&(e=e.model_config),i=Va(e),r=wn(i,t),n.weightsManifest!=null?[4,y.io.loadWeights(n.weightsManifest,n.pathPrefix,r.weights.map(function(h){return h.originalName}))]:[3,2];case 1:for(a=c.sent(),s={},o=0,l=r.weights;o<l.length;o++)u=l[o],s[u.originalName]=a[u.originalName];r.loadWeights(s),y.dispose(a),c.label=2;case 2:return[2,r]}})})}function z3(n,t){return Le(this,void 0,void 0,function(){var e;return ve(this,function(i){if(t==null&&(t={}),typeof n=="string"){if(e=y.io.getLoadHandlers(n,t),e.length===0)e.push(y.io.browserHTTPRequest(n,t));else if(e.length>1)throw new M("Found more than one ("+e.length+") load handlers for "+("URL 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Therefore loading of weights cannot proceed.");return u=P3(i.weightData,i.weightSpecs),c=u.modelWeights,h=u.optimizerWeights,o.loadWeights(c,a),o.optimizer!=null&&h.length>0?[4,o.optimizer.setWeights(h)]:[3,3];case 2:d.sent(),d.label=3;case 3:y.dispose(c),y.dispose(h.map(function(p){return p.tensor})),d.label=4;case 4:return[2,o]}})})}function P3(n,t){var e=y.io.decodeWeights(n,t),i={},r=[];return t.forEach(function(a){a.group==="optimizer"?r.push({name:a.name,tensor:e[a.name]}):i[a.name]=e[a.name]}),{modelWeights:i,optimizerWeights:r}}var _h=function(n){Q(t,n);function t(e){var i=n.call(this,{inputs:[],outputs:[]})||this;if(e=e||{},i.trainable=!0,i.built=!1,i.name=e.name!=null?e.name:lo("sequential_"),e.layers!=null)for(var r=0,a=e.layers;r<a.length;r++){var s=a[r];i.add(s)}return i}return t.prototype.checkShape=function(e){var i=e.inboundNodes[0].outputTensors[0].shape;if(i.some(function(r){return r<0}))throw new M("Negative dimension size caused by adding layer "+(e.name+" with input shape [")+(e.inboundNodes[0].inputTensors[0].shape+"]"))},t.prototype.add=function(e){var i=e instanceof t||e instanceof bi,r;if(i){if(r=e,r.outputs.length!==1)throw new M("All layers in a Sequential model should have a single output tensor. For multi-output layers, use the functional API.");if(r.inputs.length!==1)throw new M("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 M("The first layer in a Sequential model must get an `inputShape` or `batchInputShape` argument.");var a=ty({batchShape:e.batchInputShape,dtype:e.dtype,name:e.name+"_input"});e.apply(a)}if(i)this.outputs=r.outputs,this.inputs=r.inputs;else{if(e.inboundNodes.length!==1)throw new M("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 M("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=ey(this.outputs[0])}this.inboundNodes=[],new ho({outboundLayer:this,inboundLayers:[],nodeIndices:[],tensorIndices:[],inputTensors:this.inputs,outputTensors:this.outputs,inputMasks:Qi(null,this.inputs.length),outputMasks:[null],inputShapes:this.inputs.map(function(o){return o.shape}),outputShapes:this.outputs[0].shape})}else{var s=e.apply(this.outputs[0]);if(Array.isArray(s))throw new TypeError("All layers in a Sequential model should have a single output tensor. 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single number for 1D convolution, but received "+(""+JSON.stringify(r.dilationRate)));if(r.rank===2){if(typeof r.dilationRate=="number")r.dilationRate=[r.dilationRate,r.dilationRate];else if(r.dilationRate.length!==2)throw new M("dilationRate must be a number or array of two numbers for 2D "+("convolution, but received "+JSON.stringify(r.dilationRate)))}else if(r.rank===3){if(typeof r.dilationRate=="number")r.dilationRate=[r.dilationRate,r.dilationRate,r.dilationRate];else if(r.dilationRate.length!==3)throw new M("dilationRate must be a number or array of three numbers for 3D "+("convolution, but received "+JSON.stringify(r.dilationRate)))}return r}return t.verifyArgs=function(e){if(Un("kernelSize"in e,"required key 'kernelSize' not in config"),typeof e.kernelSize!="number"&&!hh(e.kernelSize,"number",1,3))throw new M("BaseConv expects config.kernelSize to be number or number[] with "+("length 1, 2, or 3, but received "+JSON.stringify(e.kernelSize)+"."))},t.prototype.getConfig=function(){var e={kernelSize:this.kernelSize,strides:this.strides,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,activation:wi(this.activation),useBias:this.useBias,biasInitializer:st(this.biasInitializer),biasRegularizer:je(this.biasRegularizer),activityRegularizer:je(this.activityRegularizer),biasConstraint:yt(this.biasConstraint)},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t}(De),Io=function(n){Q(t,n);function t(e,i){var r=n.call(this,e,i)||this;return r.kernel=null,t.verifyArgs(i),r.filters=i.filters,Tt(r.filters,"filters"),r.kernelInitializer=tt(i.kernelInitializer||r.DEFAULT_KERNEL_INITIALIZER),r.kernelConstraint=bt(i.kernelConstraint),r.kernelRegularizer=nt(i.kernelRegularizer),r}return t.prototype.build=function(e){var i;e=Ke(e);var r=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[r]==null)throw new M("The channel dimension of the input should be defined. "+("Found "+e[r]));var a=e[r],s=this.kernelSize.concat([a,this.filters]);this.kernel=this.addWeight("kernel",s,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:(i={},i[r]=a,i)}],this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){e=xe(e);var a,s=r.bias==null?null:r.bias.read(),o=Nv(r.activation.getClassName());if(o!=null&&r.rank===2)a=My(e,r.kernel.read(),s,r.strides,r.padding,r.dataFormat,r.dilationRate,o);else{if(r.rank===1)a=r4(e,r.kernel.read(),s,r.strides[0],r.padding,r.dataFormat,r.dilationRate[0]);else if(r.rank===2)a=My(e,r.kernel.read(),s,r.strides,r.padding,r.dataFormat,r.dilationRate);else if(r.rank===3)a=a4(e,r.kernel.read(),s,r.strides,r.padding,r.dataFormat,r.dilationRate);else throw new Te("convolutions greater than 3D are not implemented yet.");r.activation!=null&&(a=r.activation.apply(a))}return a})},t.prototype.computeOutputShape=function(e){e=Ke(e);for(var i=[],r=this.dataFormat==="channelsLast"?e.slice(1,e.length-1):e.slice(2),a=0;a<r.length;++a){var s=Sn(r[a],this.kernelSize[a],this.padding,this.strides[a],typeof this.dilationRate=="number"?this.dilationRate:this.dilationRate[a]);i.push(s)}var o=[e[0]];return this.dataFormat==="channelsLast"?(o=o.concat(i),o.push(this.filters)):(o.push(this.filters),o=o.concat(i)),o},t.prototype.getConfig=function(){var e={filters:this.filters,kernelInitializer:st(this.kernelInitializer),kernelRegularizer:je(this.kernelRegularizer),kernelConstraint:yt(this.kernelConstraint)},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.verifyArgs=function(e){if(!("filters"in e)||typeof e.filters!="number"||e.filters<1)throw new M("Convolution layer expected config.filters to be a 'number' > 0 "+("but got "+JSON.stringify(e.filters)))},t}(Hy),qh=function(n){Q(t,n);function t(e){var i=n.call(this,2,e)||this;return t.verifyArgs(e),i}return t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return delete e.rank,e},t.verifyArgs=function(e){if(typeof e.kernelSize!="number"&&!hh(e.kernelSize,"number",1,2))throw new M("Conv2D expects config.kernelSize to be number or number[] with "+("length 1 or 2, but received "+JSON.stringify(e.kernelSize)+"."))},t.className="Conv2D",t}(Io);y.serialization.registerClass(qh);var Vy=function(n){Q(t,n);function t(e){var i=n.call(this,3,e)||this;return t.verifyArgs(e),i}return t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return delete e.rank,e},t.verifyArgs=function(e){if(typeof e.kernelSize!="number"&&!(Array.isArray(e.kernelSize)&&(e.kernelSize.length===1||e.kernelSize.length===3)))throw new M("Conv3D expects config.kernelSize to be number or"+(" [number, number, number], but received "+JSON.stringify(e.kernelSize)+"."))},t.className="Conv3D",t}(Io);y.serialization.registerClass(Vy);var qy=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;if(i.inputSpec=[new Nt({ndim:4})],i.padding!=="same"&&i.padding!=="valid")throw new M("Conv2DTranspose currently supports only padding modes 'same' "+("and 'valid', but received padding mode "+i.padding));return i}return t.prototype.build=function(e){var i;if(e=Ke(e),e.length!==4)throw new M("Input should have rank 4; Received input shape: "+JSON.stringify(e));var r=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[r]==null)throw new M("The channel dimension of the inputs should be defined. Found `None`.");var a=e[r],s=this.kernelSize.concat([this.filters,a]);this.kernel=this.addWeight("kernel",s,"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 Nt({ndim:4,axes:(i={},i[r]=a,i)})],this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){var a=xe(e);if(a.shape.length!==4)throw new M("Conv2DTranspose.call() expects input tensor to be rank-4, but "+("received a tensor of rank-"+a.shape.length));var s=a.shape,o=s[0],l,u;r.dataFormat==="channelsFirst"?(l=2,u=3):(l=1,u=2);var c=s[l],h=s[u],d=r.kernelSize[0],p=r.kernelSize[1],f=r.strides[0],m=r.strides[1],g=Lo(c,f,d,r.padding),v=Lo(h,m,p,r.padding),b=[o,g,v,r.filters];r.dataFormat!=="channelsLast"&&(a=y.transpose(a,[0,2,3,1]));var w=y.conv2dTranspose(a,r.kernel.read(),b,r.strides,r.padding);return r.dataFormat!=="channelsLast"&&(w=y.transpose(w,[0,3,1,2])),r.bias!=null&&(w=zn(w,r.bias.read(),r.dataFormat)),r.activation!=null&&(w=r.activation.apply(w)),w})},t.prototype.computeOutputShape=function(e){e=Ke(e);var i=e.slice(),r,a,s;this.dataFormat==="channelsFirst"?(r=1,a=2,s=3):(r=3,a=1,s=2);var o=this.kernelSize[0],l=this.kernelSize[1],u=this.strides[0],c=this.strides[1];return i[r]=this.filters,i[a]=Lo(i[a],u,o,this.padding),i[s]=Lo(i[s],c,l,this.padding),i},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return delete e.dilationRate,e},t.className="Conv2DTranspose",t}(qh);y.serialization.registerClass(qy);var s4=function(n){Q(t,n);function t(e,i){var r=n.call(this,e,i)||this;if(r.DEFAULT_DEPTHWISE_INITIALIZER="glorotUniform",r.DEFAULT_POINTWISE_INITIALIZER="glorotUniform",r.depthwiseKernel=null,r.pointwiseKernel=null,i.filters==null)throw new M("The `filters` configuration field is required by SeparableConv, but is unspecified.");if(i.kernelInitializer!=null||i.kernelRegularizer!=null||i.kernelConstraint!=null)throw new M("Fields kernelInitializer, kernelRegularizer and kernelConstraint are invalid for SeparableConv2D. Use depthwiseInitializer, depthwiseRegularizer, depthwiseConstraint, pointwiseInitializer, pointwiseRegularizer and pointwiseConstraint instead.");if(i.padding!=null&&i.padding!=="same"&&i.padding!=="valid")throw new M("SeparableConv"+r.rank+"D supports only padding modes: "+("'same' and 'valid', but received "+JSON.stringify(i.padding)));return r.depthMultiplier=i.depthMultiplier==null?1:i.depthMultiplier,r.depthwiseInitializer=tt(i.depthwiseInitializer||r.DEFAULT_DEPTHWISE_INITIALIZER),r.depthwiseRegularizer=nt(i.depthwiseRegularizer),r.depthwiseConstraint=bt(i.depthwiseConstraint),r.pointwiseInitializer=tt(i.depthwiseInitializer||r.DEFAULT_POINTWISE_INITIALIZER),r.pointwiseRegularizer=nt(i.pointwiseRegularizer),r.pointwiseConstraint=bt(i.pointwiseConstraint),r}return t.prototype.build=function(e){var i;if(e=Ke(e),e.length<this.rank+2)throw new M("Inputs to SeparableConv"+this.rank+"D should have rank "+(this.rank+2+", but received input shape: ")+(""+JSON.stringify(e)));var r=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[r]==null||e[r]<0)throw new M("The channel dimension of the inputs should be defined, "+("but found "+JSON.stringify(e[r])));for(var a=e[r],s=this.kernelSize.concat([a,this.depthMultiplier]),o=[],l=0;l<this.rank;++l)o.push(1);o.push(a*this.depthMultiplier,this.filters);var u=!0;this.depthwiseKernel=this.addWeight("depthwise_kernel",s,"float32",this.depthwiseInitializer,this.depthwiseRegularizer,u,this.depthwiseConstraint),this.pointwiseKernel=this.addWeight("pointwise_kernel",o,"float32",this.pointwiseInitializer,this.pointwiseRegularizer,u,this.pointwiseConstraint),this.useBias?this.bias=this.addWeight("bias",[this.filters],"float32",this.biasInitializer,this.biasRegularizer,u,this.biasConstraint):this.bias=null,this.inputSpec=[new Nt({ndim:this.rank+2,axes:(i={},i[r]=a,i)})],this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){e=xe(e);var a;if(r.rank===1)throw new Te("1D separable convolution is not implemented yet.");return r.rank===2&&(r.dataFormat==="channelsFirst"&&(e=y.transpose(e,[0,2,3,1])),a=y.separableConv2d(e,r.depthwiseKernel.read(),r.pointwiseKernel.read(),r.strides,r.padding,r.dilationRate,"NHWC")),r.useBias&&(a=zn(a,r.bias.read(),r.dataFormat)),r.activation!=null&&(a=r.activation.apply(a)),r.dataFormat==="channelsFirst"&&(a=y.transpose(a,[0,3,1,2])),a})},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return delete e.rank,delete e.kernelInitializer,delete e.kernelRegularizer,delete e.kernelConstraint,e.depthwiseInitializer=st(this.depthwiseInitializer),e.pointwiseInitializer=st(this.pointwiseInitializer),e.depthwiseRegularizer=je(this.depthwiseRegularizer),e.pointwiseRegularizer=je(this.pointwiseRegularizer),e.depthwiseConstraint=yt(this.depthwiseConstraint),e.pointwiseConstraint=yt(this.pointwiseConstraint),e},t.className="SeparableConv",t}(Io),Gy=function(n){Q(t,n);function t(e){return n.call(this,2,e)||this}return t.className="SeparableConv2D",t}(s4);y.serialization.registerClass(Gy);var Yy=function(n){Q(t,n);function t(e){var i=n.call(this,1,e)||this;return t.verifyArgs(e),i.inputSpec=[{ndim:3}],i}return t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return delete e.rank,delete e.dataFormat,e},t.verifyArgs=function(e){if(typeof e.kernelSize!="number"&&!hh(e.kernelSize,"number",1,1))throw new M("Conv1D expects config.kernelSize to be number or number[] with "+("length 1, but received "+JSON.stringify(e.kernelSize)+"."))},t.className="Conv1D",t}(Io);y.serialization.registerClass(Yy);var Ky=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return typeof e.cropping=="number"?i.cropping=[[e.cropping,e.cropping],[e.cropping,e.cropping]]:typeof e.cropping[0]=="number"?i.cropping=[[e.cropping[0],e.cropping[0]],[e.cropping[1],e.cropping[1]]]:i.cropping=e.cropping,i.dataFormat=e.dataFormat===void 0?"channelsLast":e.dataFormat,i.inputSpec=[{ndim:4}],i}return t.prototype.computeOutputShape=function(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]]},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(e=xe(e),r.dataFormat==="channelsLast"){var a=ao(e,r.cropping[0][0],e.shape[1]-r.cropping[0][0]-r.cropping[0][1],2);return ao(a,r.cropping[1][0],e.shape[2]-r.cropping[1][1]-r.cropping[1][0],3)}else{var a=ao(e,r.cropping[0][0],e.shape[2]-r.cropping[0][0]-r.cropping[0][1],3);return ao(a,r.cropping[1][0],e.shape[3]-r.cropping[1][1]-r.cropping[1][0],4)}})},t.prototype.getConfig=function(){var e={cropping:this.cropping,dataFormat:this.dataFormat},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Cropping2D",t}(De);y.serialization.registerClass(Ky);var jy=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.DEFAULT_SIZE=[2,2],i.inputSpec=[{ndim:4}],i.size=e.size==null?i.DEFAULT_SIZE:e.size,i.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,i}return t.prototype.computeOutputShape=function(e){if(this.dataFormat==="channelsFirst"){var i=e[2]==null?null:this.size[0]*e[2],r=e[3]==null?null:this.size[1]*e[3];return[e[0],e[1],i,r]}else{var i=e[1]==null?null:this.size[0]*e[1],r=e[2]==null?null:this.size[1]*e[2];return[e[0],i,r,e[3]]}},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){var a=xe(e),s=a.shape;if(r.dataFormat==="channelsFirst"){a=y.transpose(a,[0,2,3,1]);var o=r.size[0]*s[2],l=r.size[1]*s[3],u=a.resizeNearestNeighbor([o,l]);return y.transpose(u,[0,3,1,2])}else{var o=r.size[0]*s[1],l=r.size[1]*s[2];return a.resizeNearestNeighbor([o,l])}})},t.prototype.getConfig=function(){var e={size:this.size,dataFormat:this.dataFormat},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="UpSampling2D",t}(De);y.serialization.registerClass(jy);function o4(n,t,e,i,r,a){return e===void 0&&(e=[1,1]),i===void 0&&(i="valid"),y.tidy(function(){r==null&&(r=vn()),ct(r);var s=Vh(n,r);if(n.rank!==4)throw new M("Input for depthwiseConv2d is required to be 4-D, but is instead "+(n.rank+"-D"));if(t.rank!==4)throw new M("depthwiseKernel is required to be 4-D, but is instead "+(t.rank+"-D"));return s=y.depthwiseConv2d(s,t,e,i==="same"?"same":"valid","NHWC",a),r==="channelsFirst"&&(s=y.transpose(s,[0,3,1,2])),s})}var $y=function(n){Q(t,n);function t(e){var i=n.call(this,2,e)||this;return i.depthwiseKernel=null,i.depthMultiplier=e.depthMultiplier==null?1:e.depthMultiplier,i.depthwiseInitializer=tt(e.depthwiseInitializer||i.DEFAULT_KERNEL_INITIALIZER),i.depthwiseConstraint=bt(e.depthwiseConstraint),i.depthwiseRegularizer=nt(e.depthwiseRegularizer),i}return t.prototype.build=function(e){if(e=Ke(e),e.length<4)throw new M("Inputs to DepthwiseConv2D should have rank 4. "+("Received input shape: "+JSON.stringify(e)+"."));var i=this.dataFormat==="channelsFirst"?1:3;if(e[i]==null||e[i]<0)throw new M("The channel dimension of the inputs to DepthwiseConv2D should "+("be defined, but is not ("+e[i]+")."));var r=e[i],a=[this.kernelSize[0],this.kernelSize[1],r,this.depthMultiplier];this.depthwiseKernel=this.addWeight("depthwise_kernel",a,null,this.depthwiseInitializer,this.depthwiseRegularizer,!0,this.depthwiseConstraint),this.useBias?this.bias=this.addWeight("bias",[r*this.depthMultiplier],null,this.biasInitializer,this.biasRegularizer,!0,this.biasConstraint):this.bias=null,this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){e=xe(e);var a=o4(e,r.depthwiseKernel.read(),r.strides,r.padding,r.dataFormat,null);return r.useBias&&(a=zn(a,r.bias.read(),r.dataFormat)),r.activation!=null&&(a=r.activation.apply(a)),a})},t.prototype.computeOutputShape=function(e){e=Ke(e);var i=this.dataFormat==="channelsFirst"?e[2]:e[1],r=this.dataFormat==="channelsFirst"?e[3]:e[2],a=this.dataFormat==="channelsFirst"?e[1]*this.depthMultiplier:e[3]*this.depthMultiplier,s=Sn(i,this.kernelSize[0],this.padding,this.strides[0]),o=Sn(r,this.kernelSize[1],this.padding,this.strides[1]);return this.dataFormat==="channelsFirst"?[e[0],a,s,o]:[e[0],s,o,a]},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this);return e.depthMultiplier=this.depthMultiplier,e.depthwiseInitializer=st(this.depthwiseInitializer),e.depthwiseRegularizer=je(this.depthwiseRegularizer),e.depthwiseConstraint=yt(this.depthwiseRegularizer),e},t.className="DepthwiseConv2D",t}(Hy);y.serialization.registerClass($y);function Xy(n,t,e,i){if(Array.isArray(n)){if(t!=null||e!=null)throw new M("When inputs is an array, neither initialState or constants should be provided");i!=null&&(e=n.slice(n.length-i,n.length),n=n.slice(0,n.length-i)),n.length>1&&(t=n.slice(1,n.length)),n=n[0]}function r(a){return a==null||Array.isArray(a)?a:[a]}return t=r(t),e=r(e),{inputs:n,initialState:t,constants:e}}function Jy(n,t,e,i,r,a,s,o){return i===void 0&&(i=!1),s===void 0&&(s=!1),o===void 0&&(o=!1),y.tidy(function(){var l=t.shape.length;if(l<3)throw new M("Input should be at least 3D, but is "+l+"D.");var u=[1,0].concat(yn(2,l));if(t=y.transpose(t,u),a!=null)throw new Te("The rnn() functoin of the deeplearn.js backend does not support constants yet.");s&&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===l-1&&(r=y.expandDims(r,-1)),r=y.transpose(r,u)),i&&(t=y.reverse(t,0),r!=null&&(r=y.reverse(r,0)));var c=[],h,d=e,p=t.shape[0],f=y.unstack(t),m;r!=null&&(m=y.unstack(r));for(var g=function(S){var L=f[S],x=y.tidy(function(){return n(L,d)});if(r==null)h=x[0],d=x[1];else{var C=y.tidy(function(){var R=m[S],D=y.onesLike(R).sub(R),k=x[0].mul(R).add(d[0].mul(D)),W=d.map(function(F,P){return x[1][P].mul(R).add(F.mul(D))});return{output:k,newStates:W}});h=C.output,d=C.newStates}o&&c.push(h)},v=0;v<p;++v)g(v);var b;if(o){var w=1;b=y.stack(c,w)}return[h,b,d]})}var Li=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this,r;if(e.cell==null)throw new M("cell property is missing for the constructor of RNN.");if(Array.isArray(e.cell)?r=new Gh({cells:e.cell}):r=e.cell,r.stateSize==null)throw new M("The RNN cell should have an attribute `stateSize` (tuple of integers, one integer per RNN state).");return i.cell=r,i.returnSequences=e.returnSequences==null?!1:e.returnSequences,i.returnState=e.returnState==null?!1:e.returnState,i.goBackwards=e.goBackwards==null?!1:e.goBackwards,i._stateful=e.stateful==null?!1:e.stateful,i.unroll=e.unroll==null?!1:e.unroll,i.supportsMasking=!0,i.inputSpec=[new Nt({ndim:3})],i.stateSpec=null,i.states_=null,i.numConstants=null,i.keptStates=[],i}return t.prototype.getStates=function(){if(this.states_==null){var e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1;return yn(0,e).map(function(i){return null})}else return this.states_},t.prototype.setStates=function(e){this.states_=e},t.prototype.computeOutputShape=function(e){Ah(e)&&(e=e[0]),e=e;var i=this.cell.stateSize;Array.isArray(i)||(i=[i]);var r=i[0],a;if(this.returnSequences?a=[e[0],e[1],r]:a=[e[0],r],this.returnState){for(var s=[],o=0,l=i;o<l.length;o++){var u=l[o];s.push([e[0],u])}return[a].concat(s)}else return a},t.prototype.computeMask=function(e,i){var r=this;return y.tidy(function(){Array.isArray(i)&&(i=i[0]);var a=r.returnSequences?i:null;if(r.returnState){var s=r.states.map(function(o){return null});return[a].concat(s)}else return a})},Object.defineProperty(t.prototype,"states",{get:function(){if(this.states_==null){for(var e=Array.isArray(this.cell.stateSize)?this.cell.stateSize.length:1,i=[],r=0;r<e;++r)i.push(null);return i}else return this.states_},set:function(e){this.states_=e},enumerable:!0,configurable:!0}),t.prototype.build=function(e){if(this.numConstants!=null)throw new Te("Constants support is not implemented in RNN yet.");Ah(e)&&(e=e[0]),e=e;var i=this.stateful?e[0]:null,r=e.slice(2);this.inputSpec[0]=new Nt({shape:[i,null].concat(r)});var a=[e[0]].concat(e.slice(2));this.cell.build(a);var s;if(Array.isArray(this.cell.stateSize)?s=this.cell.stateSize:s=[this.cell.stateSize],this.stateSpec!=null){if(!y.util.arraysEqual(this.stateSpec.map(function(o){return o.shape[o.shape.length-1]}),s))throw new M("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(function(o){return new Nt({shape:[null,o]})});this.stateful&&this.resetStates()},t.prototype.resetStates=function(e,i){var r=this;i===void 0&&(i=!1),y.tidy(function(){if(!r.stateful)throw new fi("Cannot call resetStates() on an RNN Layer that is not stateful.");var a=r.inputSpec[0].shape[0];if(a==null)throw new M("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(r.states_==null)Array.isArray(r.cell.stateSize)?r.states_=r.cell.stateSize.map(function(c){return y.zeros([a,c])}):r.states_=[y.zeros([a,r.cell.stateSize])];else if(e==null)y.dispose(r.states_),r.keptStates!=null&&(y.dispose(r.keptStates),r.keptStates=[]),Array.isArray(r.cell.stateSize)?r.states_=r.cell.stateSize.map(function(c){return y.zeros([a,c])}):r.states_[0]=y.zeros([a,r.cell.stateSize]);else{if(Array.isArray(e)||(e=[e]),e.length!==r.states_.length)throw new M("Layer "+r.name+" expects "+r.states_.length+" state(s), "+("but it received "+e.length+" state value(s). Input ")+("received: "+e));i===!0?r.keptStates.push(r.states_.slice()):y.dispose(r.states_);for(var s=0;s<r.states_.length;++s){var o=e[s],l=Array.isArray(r.cell.stateSize)?r.cell.stateSize[s]:r.cell.stateSize,u=[a,l];if(!y.util.arraysEqual(o.shape,u))throw new M("State "+s+" is incompatible with layer "+r.name+": "+("expected shape="+u+", received shape="+o.shape));r.states_[s]=o}}r.states_=r.states_.map(function(c){return y.keep(c.clone())})})},t.prototype.apply=function(e,i){var r=i==null?null:i.initialState,a=i==null?null:i.constants;i==null&&(i={});var s=Xy(e,r,a,this.numConstants);e=s.inputs,r=s.initialState,a=s.constants;var o=[],l=[];if(r!=null){i.initialState=r,o=o.concat(r),this.stateSpec=[];for(var u=0,c=r;u<c.length;u++){var h=c[u];this.stateSpec.push(new Nt({shape:h.shape}))}l=l.concat(this.stateSpec)}a!=null&&(i.constants=a,o=o.concat(a),this.numConstants=a.length);var d=o[0]instanceof bn;if(d){var p=[e].concat(o),f=this.inputSpec.concat(l),m=this.inputSpec;this.inputSpec=f;var g=n.prototype.apply.call(this,p,i);return this.inputSpec=m,g}else return n.prototype.apply.call(this,e,i)},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){var a=i==null?null:i.mask,s=i==null?null:i.training,o=i==null?null:i.initialState;e=xe(e),o==null&&(r.stateful?o=r.states_:o=r.getInitialState(e));var l=Array.isArray(r.cell.stateSize)?r.cell.stateSize.length:1;if(o.length!==l)throw new M("RNN Layer has "+l+" state(s) but was passed "+(o.length+" initial state(s)."));r.unroll&&console.warn("Ignoring unroll = true for RNN layer, due to imperative backend.");var u={training:s},c=function(g,v){var b=r.cell.call([g].concat(v),u);return[b[0],b.slice(1)]},h=Jy(c,e,o,r.goBackwards,a,null,r.unroll,r.returnSequences),d=h[0],p=h[1],f=h[2];r.stateful&&r.resetStates(f,s);var m=r.returnSequences?p:d;return r.returnState?[m].concat(f):m})},t.prototype.getInitialState=function(e){var i=this;return y.tidy(function(){var r=y.zeros(e.shape);return r=y.sum(r,[1,2]),r=za(r),Array.isArray(i.cell.stateSize)?i.cell.stateSize.map(function(a){return a>1?ph(r,[1,a]):r}):i.cell.stateSize>1?[ph(r,[1,i.cell.stateSize])]:[r]})},Object.defineProperty(t.prototype,"trainableWeights",{get:function(){return this.trainable?this.cell.trainableWeights:[]},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"nonTrainableWeights",{get:function(){return this.trainable?this.cell.nonTrainableWeights:this.cell.weights},enumerable:!0,configurable:!0}),t.prototype.setFastWeightInitDuringBuild=function(e){n.prototype.setFastWeightInitDuringBuild.call(this,e),this.cell!=null&&this.cell.setFastWeightInitDuringBuild(e)},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={returnSequences:this.returnSequences,returnState:this.returnState,goBackwards:this.goBackwards,stateful:this.stateful,unroll:this.unroll};this.numConstants!=null&&(i.numConstants=this.numConstants);var r=this.cell.getConfig();return this.getClassName()===t.className&&(i.cell={className:this.cell.getClassName(),config:r}),Yt({},r,e,i)},t.fromConfig=function(e,i,r){r===void 0&&(r={});var a=i.cell,s=wn(a,r);return new e(Object.assign(i,{cell:s}))},t.className="RNN",t}(De);y.serialization.registerClass(Li);var jr=function(n){Q(t,n);function t(){return n!==null&&n.apply(this,arguments)||this}return t}(De),Yh=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.DEFAULT_ACTIVATION="tanh",i.DEFAULT_KERNEL_INITIALIZER="glorotNormal",i.DEFAULT_RECURRENT_INITIALIZER="orthogonal",i.DEFAULT_BIAS_INITIALIZER="zeros",i.units=e.units,Tt(i.units,"units"),i.activation=Si(e.activation==null?i.DEFAULT_ACTIVATION:e.activation),i.useBias=e.useBias==null?!0:e.useBias,i.kernelInitializer=tt(e.kernelInitializer||i.DEFAULT_KERNEL_INITIALIZER),i.recurrentInitializer=tt(e.recurrentInitializer||i.DEFAULT_RECURRENT_INITIALIZER),i.biasInitializer=tt(e.biasInitializer||i.DEFAULT_BIAS_INITIALIZER),i.kernelRegularizer=nt(e.kernelRegularizer),i.recurrentRegularizer=nt(e.recurrentRegularizer),i.biasRegularizer=nt(e.biasRegularizer),i.kernelConstraint=bt(e.kernelConstraint),i.recurrentConstraint=bt(e.recurrentConstraint),i.biasConstraint=bt(e.biasConstraint),i.dropout=Vr([1,vi([0,e.dropout==null?0:e.dropout])]),i.recurrentDropout=Vr([1,vi([0,e.recurrentDropout==null?0:e.recurrentDropout])]),i.stateSize=i.units,i.dropoutMask=null,i.recurrentDropoutMask=null,i}return t.prototype.build=function(e){e=Ke(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},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(e=e,e.length!==2)throw new M("SimpleRNNCell expects 2 input Tensors, got "+e.length+".");var a=e[1];e=e[0];var s=i.training==null?!1:i.training;0<r.dropout&&r.dropout<1&&r.dropoutMask==null&&(r.dropoutMask=Ii({ones:function(){return y.onesLike(e)},rate:r.dropout,training:s})),0<r.recurrentDropout&&r.recurrentDropout<1&&r.recurrentDropoutMask==null&&(r.recurrentDropoutMask=Ii({ones:function(){return y.onesLike(a)},rate:r.recurrentDropout,training:s}));var o,l=r.dropoutMask,u=r.recurrentDropoutMask;l!=null?o=Bn(y.mul(e,l),r.kernel.read()):o=Bn(e,r.kernel.read()),r.bias!=null&&(o=zn(o,r.bias.read())),u!=null&&(a=y.mul(a,u));var c=y.add(o,Bn(a,r.recurrentKernel.read()));return r.activation!=null&&(c=r.activation.apply(c)),[c,c]})},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={units:this.units,activation:wi(this.activation),useBias:this.useBias,kernelInitializer:st(this.kernelInitializer),recurrentInitializer:st(this.recurrentInitializer),biasInitializer:st(this.biasInitializer),kernelRegularizer:je(this.kernelRegularizer),recurrentRegularizer:je(this.recurrentRegularizer),biasRegularizer:je(this.biasRegularizer),activityRegularizer:je(this.activityRegularizer),kernelConstraint:yt(this.kernelConstraint),recurrentConstraint:yt(this.recurrentConstraint),biasConstraint:yt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout};return Yt({},e,i)},t.className="SimpleRNNCell",t}(jr);y.serialization.registerClass(Yh);var Zy=function(n){Q(t,n);function t(e){var i=this;return e.cell=new Yh(e),i=n.call(this,e)||this,i}return t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.cell.dropoutMask!=null&&(y.dispose(r.cell.dropoutMask),r.cell.dropoutMask=null),r.cell.recurrentDropoutMask!=null&&(y.dispose(r.cell.recurrentDropoutMask),r.cell.recurrentDropoutMask=null);var a=i==null?null:i.mask,s=i==null?null:i.training,o=i==null?null:i.initialState;return n.prototype.call.call(r,e,{mask:a,training:s,initialState:o})})},t.fromConfig=function(e,i){return new e(i)},t.className="SimpleRNN",t}(Li);y.serialization.registerClass(Zy);var Kh=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;if(i.DEFAULT_ACTIVATION="tanh",i.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",i.DEFAULT_KERNEL_INITIALIZER="glorotNormal",i.DEFAULT_RECURRENT_INITIALIZER="orthogonal",i.DEFAULT_BIAS_INITIALIZER="zeros",e.resetAfter)throw new M("GRUCell does not support reset_after parameter set to true.");return i.units=e.units,Tt(i.units,"units"),i.activation=Si(e.activation===void 0?i.DEFAULT_ACTIVATION:e.activation),i.recurrentActivation=Si(e.recurrentActivation===void 0?i.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),i.useBias=e.useBias==null?!0:e.useBias,i.kernelInitializer=tt(e.kernelInitializer||i.DEFAULT_KERNEL_INITIALIZER),i.recurrentInitializer=tt(e.recurrentInitializer||i.DEFAULT_RECURRENT_INITIALIZER),i.biasInitializer=tt(e.biasInitializer||i.DEFAULT_BIAS_INITIALIZER),i.kernelRegularizer=nt(e.kernelRegularizer),i.recurrentRegularizer=nt(e.recurrentRegularizer),i.biasRegularizer=nt(e.biasRegularizer),i.kernelConstraint=bt(e.kernelConstraint),i.recurrentConstraint=bt(e.recurrentConstraint),i.biasConstraint=bt(e.biasConstraint),i.dropout=Vr([1,vi([0,e.dropout==null?0:e.dropout])]),i.recurrentDropout=Vr([1,vi([0,e.recurrentDropout==null?0:e.recurrentDropout])]),i.implementation=e.implementation,i.stateSize=i.units,i.dropoutMask=null,i.recurrentDropoutMask=null,i}return t.prototype.build=function(e){e=Ke(e);var i=e[e.length-1];this.kernel=this.addWeight("kernel",[i,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},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(e=e,e.length!==2)throw new M("GRUCell expects 2 input Tensors (inputs, h, c), got "+(e.length+"."));var a=i.training==null?!1:i.training,s=e[1];e=e[0],0<r.dropout&&r.dropout<1&&r.dropoutMask==null&&(r.dropoutMask=Ii({ones:function(){return y.onesLike(e)},rate:r.dropout,training:a,count:3})),0<r.recurrentDropout&&r.recurrentDropout<1&&r.recurrentDropoutMask==null&&(r.recurrentDropoutMask=Ii({ones:function(){return y.onesLike(s)},rate:r.recurrentDropout,training:a,count:3}));var o=r.dropoutMask,l=r.recurrentDropoutMask,u,c,h;0<r.dropout&&r.dropout<1&&(e=y.mul(e,o[0]));var d=Bn(e,r.kernel.read());r.useBias&&(d=zn(d,r.bias.read())),0<r.recurrentDropout&&r.recurrentDropout<1&&(s=y.mul(s,l[0]));var p=r.recurrentKernel.read(),f=y.split(p,[2*r.units,r.units],p.rank-1),m=f[0],g=f[1],v=Bn(s,m),b=y.split(d,3,d.rank-1),w=b[0],S=b[1],L=b[2],x=y.split(v,2,v.rank-1),C=x[0],R=x[1];u=r.recurrentActivation.apply(y.add(w,C)),c=r.recurrentActivation.apply(y.add(S,R));var D=Bn(y.mul(c,s),g);h=r.activation.apply(y.add(L,D));var k=y.add(y.mul(u,s),y.mul(y.add(1,y.neg(u)),h));return[k,k]})},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={units:this.units,activation:wi(this.activation),recurrentActivation:wi(this.recurrentActivation),useBias:this.useBias,kernelInitializer:st(this.kernelInitializer),recurrentInitializer:st(this.recurrentInitializer),biasInitializer:st(this.biasInitializer),kernelRegularizer:je(this.kernelRegularizer),recurrentRegularizer:je(this.recurrentRegularizer),biasRegularizer:je(this.biasRegularizer),activityRegularizer:je(this.activityRegularizer),kernelConstraint:yt(this.kernelConstraint),recurrentConstraint:yt(this.recurrentConstraint),biasConstraint:yt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout,implementation:this.implementation,resetAfter:!1};return Yt({},e,i)},t.className="GRUCell",t}(jr);y.serialization.registerClass(Kh);var Qy=function(n){Q(t,n);function t(e){var i=this;return e.implementation===0&&console.warn("`implementation=0` has been deprecated, and now defaults to `implementation=1`. Please update your layer call."),e.cell=new Kh(e),i=n.call(this,e)||this,i}return t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.cell.dropoutMask!=null&&(y.dispose(r.cell.dropoutMask),r.cell.dropoutMask=null),r.cell.recurrentDropoutMask!=null&&(y.dispose(r.cell.recurrentDropoutMask),r.cell.recurrentDropoutMask=null);var a=i==null?null:i.mask,s=i==null?null:i.training,o=i==null?null:i.initialState;return n.prototype.call.call(r,e,{mask:a,training:s,initialState:o})})},t.fromConfig=function(e,i){return i.implmentation===0&&(i.implementation=1),new e(i)},t.className="GRU",t}(Li);y.serialization.registerClass(Qy);var Ao=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.DEFAULT_ACTIVATION="tanh",i.DEFAULT_RECURRENT_ACTIVATION="hardSigmoid",i.DEFAULT_KERNEL_INITIALIZER="glorotNormal",i.DEFAULT_RECURRENT_INITIALIZER="orthogonal",i.DEFAULT_BIAS_INITIALIZER="zeros",i.units=e.units,Tt(i.units,"units"),i.activation=Si(e.activation===void 0?i.DEFAULT_ACTIVATION:e.activation),i.recurrentActivation=Si(e.recurrentActivation===void 0?i.DEFAULT_RECURRENT_ACTIVATION:e.recurrentActivation),i.useBias=e.useBias==null?!0:e.useBias,i.kernelInitializer=tt(e.kernelInitializer||i.DEFAULT_KERNEL_INITIALIZER),i.recurrentInitializer=tt(e.recurrentInitializer||i.DEFAULT_RECURRENT_INITIALIZER),i.biasInitializer=tt(e.biasInitializer||i.DEFAULT_BIAS_INITIALIZER),i.unitForgetBias=e.unitForgetBias,i.kernelRegularizer=nt(e.kernelRegularizer),i.recurrentRegularizer=nt(e.recurrentRegularizer),i.biasRegularizer=nt(e.biasRegularizer),i.kernelConstraint=bt(e.kernelConstraint),i.recurrentConstraint=bt(e.recurrentConstraint),i.biasConstraint=bt(e.biasConstraint),i.dropout=Vr([1,vi([0,e.dropout==null?0:e.dropout])]),i.recurrentDropout=Vr([1,vi([0,e.recurrentDropout==null?0:e.recurrentDropout])]),i.implementation=e.implementation,i.stateSize=[i.units,i.units],i.dropoutMask=null,i.recurrentDropoutMask=null,i}return t.prototype.build=function(e){var i;e=Ke(e);var r=e[e.length-1];this.kernel=this.addWeight("kernel",[r,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);var a;if(this.useBias){if(this.unitForgetBias){var s=this.biasInitializer,o=this.units;a=new(i=function(l){Q(u,l);function u(){return l!==null&&l.apply(this,arguments)||this}return u.prototype.apply=function(c,h){var d=s.apply([o]),p=new vh().apply([o]),f=s.apply([o*2]);return Pv(Pv(d,p),f)},u}(cn),i.className="CustomInit",i)}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},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){var a=i.training==null?!1:i.training;if(e=e,e.length!==3)throw new M("LSTMCell expects 3 input Tensors (inputs, h, c), got "+(e.length+"."));var s=e[1],o=e[2];e=e[0],0<r.dropout&&r.dropout<1&&r.dropoutMask==null&&(r.dropoutMask=Ii({ones:function(){return y.onesLike(e)},rate:r.dropout,training:a,count:4})),0<r.recurrentDropout&&r.recurrentDropout<1&&r.recurrentDropoutMask==null&&(r.recurrentDropoutMask=Ii({ones:function(){return y.onesLike(s)},rate:r.recurrentDropout,training:a,count:4}));var l=r.dropoutMask,u=r.recurrentDropoutMask,c,h,d,p;0<r.dropout&&r.dropout<1&&(e=y.mul(e,l[0]));var f=Bn(e,r.kernel.read());0<r.recurrentDropout&&r.recurrentDropout<1&&(s=y.mul(s,u[0])),f=y.add(f,Bn(s,r.recurrentKernel.read())),r.useBias&&(f=zn(f,r.bias.read()));var m=y.split(f,4,f.rank-1),g=m[0],v=m[1],b=m[2],w=m[3];c=r.recurrentActivation.apply(g),h=r.recurrentActivation.apply(v),d=y.add(y.mul(h,o),y.mul(c,r.activation.apply(b))),p=r.recurrentActivation.apply(w);var S=y.mul(p,r.activation.apply(d));return[S,S,d]})},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={units:this.units,activation:wi(this.activation),recurrentActivation:wi(this.recurrentActivation),useBias:this.useBias,kernelInitializer:st(this.kernelInitializer),recurrentInitializer:st(this.recurrentInitializer),biasInitializer:st(this.biasInitializer),unitForgetBias:this.unitForgetBias,kernelRegularizer:je(this.kernelRegularizer),recurrentRegularizer:je(this.recurrentRegularizer),biasRegularizer:je(this.biasRegularizer),activityRegularizer:je(this.activityRegularizer),kernelConstraint:yt(this.kernelConstraint),recurrentConstraint:yt(this.recurrentConstraint),biasConstraint:yt(this.biasConstraint),dropout:this.dropout,recurrentDropout:this.recurrentDropout,implementation:this.implementation};return Yt({},e,i)},t.className="LSTMCell",t}(jr);y.serialization.registerClass(Ao);var eb=function(n){Q(t,n);function t(e){var i=this;return e.implementation===0&&console.warn("`implementation=0` has been deprecated, and now defaults to `implementation=1`. Please update your layer call."),e.cell=new Ao(e),i=n.call(this,e)||this,i}return t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.cell.dropoutMask!=null&&(y.dispose(r.cell.dropoutMask),r.cell.dropoutMask=null),r.cell.recurrentDropoutMask!=null&&(y.dispose(r.cell.recurrentDropoutMask),r.cell.recurrentDropoutMask=null);var a=i==null?null:i.mask,s=i==null?null:i.training,o=i==null?null:i.initialState;return n.prototype.call.call(r,e,{mask:a,training:s,initialState:o})})},t.fromConfig=function(e,i){return i.implmentation===0&&(i.implementation=1),new e(i)},t.className="LSTM",t}(Li);y.serialization.registerClass(eb);var Gh=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.cells=e.cells,i}return Object.defineProperty(t.prototype,"stateSize",{get:function(){for(var e=[],i=0,r=this.cells.slice().reverse();i<r.length;i++){var a=r[i];Array.isArray(a.stateSize)?e.push.apply(e,a.stateSize):e.push(a.stateSize)}return e},enumerable:!0,configurable:!0}),t.prototype.call=function(e,i){var r=this;return y.tidy(function(){e=e;for(var a=e.slice(1),s=[],o=0,l=r.cells.slice().reverse();o<l.length;o++){var u=l[o];Array.isArray(u.stateSize)?s.push(a.splice(0,u.stateSize.length)):s.push(a.splice(0,1))}s.reverse();for(var c=[],h,d=0;d<r.cells.length;++d){var u=r.cells[d];a=s[d],d===0?h=[e[0]].concat(a):h=[h[0]].concat(a),h=u.call(h,i),c.push(h.slice(1))}a=[];for(var p=0,f=c.slice().reverse();p<f.length;p++){var m=f[p];a.push.apply(a,m)}return[h[0]].concat(a)})},t.prototype.build=function(e){Ah(e)&&(e=e[0]),e=e;var i;this.cells.forEach(function(r,a){tr("RNNCell_"+a,function(){r.build(e),Array.isArray(r.stateSize)?i=r.stateSize[0]:i=r.stateSize,e=[e[0],i]})}),this.built=!0},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i=function(s){return{className:s.getClassName(),config:s.getConfig()}},r=this.cells.map(i),a={cells:r};return Yt({},e,a)},t.fromConfig=function(e,i,r){r===void 0&&(r={});for(var a=[],s=0,o=i.cells;s<o.length;s++){var l=o[s];a.push(wn(l,r))}return new e({cells:a})},Object.defineProperty(t.prototype,"trainableWeights",{get:function(){if(!this.trainable)return[];for(var e=[],i=0,r=this.cells;i<r.length;i++){var a=r[i];e.push.apply(e,a.trainableWeights)}return e},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"nonTrainableWeights",{get:function(){for(var e=[],i=0,r=this.cells;i<r.length;i++){var a=r[i];e.push.apply(e,a.nonTrainableWeights)}if(!this.trainable){for(var s=[],o=0,l=this.cells;o<l.length;o++){var a=l[o];s.push.apply(s,a.trainableWeights)}return s.concat(e)}return e},enumerable:!0,configurable:!0}),t.prototype.getWeights=function(){for(var e=[],i=0,r=this.cells;i<r.length;i++){var a=r[i];e.push.apply(e,a.weights)}return Th(e)},t.prototype.setWeights=function(e){for(var i=[],r=0,a=this.cells;r<a.length;r++)for(var s=a[r],o=s.weights.length,l=e.splice(o),u=0;u<s.weights.length;++u)i.push([s.weights[u],l[u]]);Nh(i)},t.className="StackedRNNCells",t}(jr);y.serialization.registerClass(Gh);function Ii(n){var t=n.ones,e=n.rate,i=n.training,r=i===void 0?!1:i,a=n.count,s=a===void 0?1:a,o=function(){return Mv(t(),e)},l=function(){return _a(o,t,r)};if(!s||s<=1)return y.keep(l().clone());var u=Array(s).fill(void 0).map(l);return u.map(function(c){return y.keep(c.clone())})}var xH=function(n){Q(t,n);function t(){return n!==null&&n.apply(this,arguments)||this}return t}(jr),l4=function(n){Q(t,n);function t(e){var i=this;if(e.unroll)throw new Te("Unrolling is not possible with convolutional RNNs.");if(Array.isArray(e.cell))throw new Te("It is not possible at the moment to stack convolutional cells.");return i=n.call(this,e)||this,i.inputSpec=[new Nt({ndim:5})],i}return t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(r.cell.dropoutMask!=null&&(y.dispose(r.cell.dropoutMask),r.cell.dropoutMask=null),r.cell.recurrentDropoutMask!=null&&(y.dispose(r.cell.recurrentDropoutMask),r.cell.recurrentDropoutMask=null),i&&i.constants)throw new M("ConvRNN2D cell does not support constants");var a=i==null?null:i.mask,s=i==null?null:i.training,o=i==null?null:i.initialState;return n.prototype.call.call(r,e,{mask:a,training:s,initialState:o})})},t.prototype.computeOutputShape=function(e){var i=this.computeSingleOutputShape(e);return this.returnSequences||(i=[i[0]].concat(i.slice(2))),this.returnState&&(i=[i].concat(Array(2).fill([e[0]].concat(i.slice(-3))))),i},t.prototype.getInitialState=function(e){var i=this;return y.tidy(function(){var r=i.cell.stateSize,a=e.shape,s=i.computeSingleOutputShape(a),o=[s[0]].concat(s.slice(2)),l=y.zeros(o);return Array.isArray(r)?Array(r.length).fill(l):[l]})},t.prototype.resetStates=function(e,i){var r=this;i===void 0&&(i=!1),y.tidy(function(){if(!r.stateful)throw new fi("Cannot call resetStates() on an RNN Layer that is not stateful.");var a=r.inputSpec[0].shape,s=r.computeSingleOutputShape(a),o=[s[0]].concat(s.slice(2)),l=a[0];if(l==null)throw new M("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(r.getStates()==null)Array.isArray(r.cell.stateSize)?r.states_=r.cell.stateSize.map(function(){return y.zeros(o)}):r.states_=[y.zeros(o)];else if(e==null)y.dispose(r.states_),r.keptStates!=null&&(y.dispose(r.keptStates),r.keptStates=[]),Array.isArray(r.cell.stateSize)?r.states_=r.cell.stateSize.map(function(){return y.zeros(o)}):r.states_[0]=y.zeros(o);else{if(Array.isArray(e)||(e=[e]),e.length!==r.states_.length)throw new M("Layer "+r.name+" expects "+r.states_.length+" state(s), "+("but it received "+e.length+" state value(s). Input ")+("received: "+e));i?r.keptStates.push(r.states_.slice()):y.dispose(r.states_);for(var u=0;u<r.states_.length;++u){var c=e[u],h=o;if(!y.util.arraysEqual(c.shape,h))throw new M("State "+u+" is incompatible with layer "+r.name+": "+("expected shape="+h+", received shape="+c.shape));r.states_[u]=c}}r.states_=r.states_.map(function(d){return y.keep(d.clone())})})},t.prototype.computeSingleOutputShape=function(e){var i=this.cell,r=i.dataFormat,a=i.filters,s=i.kernelSize,o=i.padding,l=i.strides,u=i.dilationRate,c=r==="channelsFirst",h=e[c?3:2],d=e[c?4:3],p=Sn(h,s[0],o,l[0],u[0]),f=Sn(d,s[1],o,l[1],u[1]),m=e.slice(0,2).concat(c?[a,p,f]:[p,f,a]);return m},t.className="ConvRNN2D",t}(Li),jh=function(n){Q(t,n);function t(e){var i=this,r=e.filters,a=e.kernelSize,s=e.strides,o=e.padding,l=e.dataFormat,u=e.dilationRate;return i=n.call(this,Yt({},e,{units:r}))||this,i.filters=r,Tt(i.filters,"filters"),i.kernelSize=Kr(a,2,"kernelSize"),i.kernelSize.forEach(function(c){return Tt(c,"kernelSize")}),i.strides=Kr(s||1,2,"strides"),i.strides.forEach(function(c){return Tt(c,"strides")}),i.padding=o||"valid",nn(i.padding),i.dataFormat=l||"channelsLast",ct(i.dataFormat),i.dilationRate=Kr(u||1,2,"dilationRate"),i.dilationRate.forEach(function(c){return Tt(c,"dilationRate")}),i}return t.prototype.build=function(e){var i;e=Ke(e);var r=this.dataFormat==="channelsFirst"?1:e.length-1;if(e[r]==null)throw new M("The channel dimension of the input should be defined. "+("Found "+e[r]));var a=e[r],s=4,o=this.kernelSize.concat([a,this.filters*s]);this.kernel=this.addWeight("kernel",o,null,this.kernelInitializer,this.kernelRegularizer,!0,this.kernelConstraint);var l=this.kernelSize.concat([this.filters,this.filters*s]);if(this.recurrentKernel=this.addWeight("recurrent_kernel",l,null,this.recurrentInitializer,this.recurrentRegularizer,!0,this.recurrentConstraint),this.useBias){var u=void 0;if(this.unitForgetBias){var c=this.biasInitializer,h=this.filters;u=new(i=function(d){Q(p,d);function p(){return d!==null&&d.apply(this,arguments)||this}return p.prototype.apply=function(f,m){var g=c.apply([h]),v=y.ones([h]),b=c.apply([h*2]);return mh([g,v,b])},p}(cn),i.className="CustomInit",i)}else u=this.biasInitializer;this.bias=this.addWeight("bias",[this.filters*s],null,u,this.biasRegularizer,!0,this.biasConstraint)}this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(e.length!==3)throw new M("ConvLSTM2DCell expects 3 input Tensors (inputs, h, c), got "+(e.length+"."));var a=i.training||!1,s=e[0],o=e[1],l=e[2],u=4;0<r.dropout&&r.dropout<1&&r.dropoutMask==null&&(r.dropoutMask=Ii({ones:function(){return y.onesLike(s)},rate:r.dropout,training:a,count:u}));var c=r.dropoutMask,h=function(te,re,le){return!re||!re[le]?te:y.mul(re[le],te)},d=h(s,c,0),p=h(s,c,1),f=h(s,c,2),m=h(s,c,3);0<r.recurrentDropout&&r.recurrentDropout<1&&r.recurrentDropoutMask==null&&(r.recurrentDropoutMask=Ii({ones:function(){return y.onesLike(o)},rate:r.recurrentDropout,training:a,count:u}));var g=r.recurrentDropoutMask,v=h(o,g,0),b=h(o,g,1),w=h(o,g,2),S=h(o,g,3),L=3,x=y.split(r.kernel.read(),u,L),C=x[0],R=x[1],D=x[2],k=x[3],W=r.useBias?y.split(r.bias.read(),u):[null,null,null,null],F=W[0],P=W[1],H=W[2],_=W[3];d=r.inputConv(d,C,F,r.padding),p=r.inputConv(p,R,P,r.padding),f=r.inputConv(f,D,H,r.padding),m=r.inputConv(m,k,_,r.padding);var K=y.split(r.recurrentKernel.read(),u,L),j=K[0],q=K[1],G=K[2],Z=K[3];v=r.recurrentConv(v,j),b=r.recurrentConv(b,q),w=r.recurrentConv(w,G),S=r.recurrentConv(S,Z);var X=r.recurrentActivation.apply(y.add(d,v)),ee=r.recurrentActivation.apply(y.add(p,b)),ne=y.add(y.mul(ee,l),y.mul(X,r.activation.apply(y.add(f,w)))),ie=y.mul(r.recurrentActivation.apply(y.add(m,S)),r.activation.apply(ne));return[ie,ie,ne]})},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i=e.units,r=YD(e,["units"]),a={filters:this.filters,kernelSize:this.kernelSize,padding:this.padding,dataFormat:this.dataFormat,dilationRate:this.dilationRate,strides:this.strides};return Yt({},r,a)},t.prototype.inputConv=function(e,i,r,a){var s=y.conv2d(e,i,this.strides,a||"valid",this.dataFormat==="channelsFirst"?"NCHW":"NHWC",this.dilationRate);return r?zn(s,r,this.dataFormat):s},t.prototype.recurrentConv=function(e,i){var r=1;return y.conv2d(e,i,r,"same",this.dataFormat==="channelsFirst"?"NCHW":"NHWC")},t.className="ConvLSTM2DCell",t}(Ao);y.serialization.registerClass(jh);var tb=function(n){Q(t,n);function t(e){var i=this,r=new jh(e);return i=n.call(this,Yt({},e,{cell:r}))||this,i}return t.fromConfig=function(e,i){return new e(i)},t.className="ConvLSTM2D",t}(l4);y.serialization.registerClass(tb);var $h=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.rate=Math.max(Math.min(e.rate,1),0),i.noiseShape=e.noiseShape,i.seed=e.seed,i.supportsMasking=!0,i}return t.prototype.getNoiseShape=function(e){if(this.noiseShape==null)return this.noiseShape;for(var i=e.shape,r=[],a=0;a<this.noiseShape.length;++a)r.push(this.noiseShape[a]==null?i[a]:this.noiseShape[a]);return r},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i);var a=xe(e);if(0<r.rate&&r.rate<1){var s=i.training==null?!1:i.training,o=r.getNoiseShape(a),l=_a(function(){return Mv(a,r.rate,o,r.seed)},function(){return a},s);return l}return e})},t.prototype.getConfig=function(){var e={rate:this.rate,noiseShape:this.noiseShape,seed:this.seed},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.prototype.dispose=function(){return n.prototype.dispose.call(this)},t.className="Dropout",t}(De);y.serialization.registerClass($h);var nb=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.inputSpec=[{ndim:3}],i}return t.prototype.getNoiseShape=function(e){var i=e.shape;return[i[0],1,i[2]]},t.className="SpatialDropout1D",t}($h);y.serialization.registerClass(nb);var ib=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;if(i.activation=null,i.useBias=!0,i.kernel=null,i.bias=null,i.DEFAULT_KERNEL_INITIALIZER="glorotNormal",i.DEFAULT_BIAS_INITIALIZER="zeros",e.batchInputShape==null&&e.inputShape==null&&e.inputDim!=null){var r=null;e.batchSize!=null&&(r=e.batchSize),i.batchInputShape=[r,e.inputDim]}return i.units=e.units,Tt(i.units,"units"),i.activation=Si(e.activation),e.useBias!=null&&(i.useBias=e.useBias),i.kernelInitializer=tt(e.kernelInitializer||i.DEFAULT_KERNEL_INITIALIZER),i.biasInitializer=tt(e.biasInitializer||i.DEFAULT_BIAS_INITIALIZER),i.kernelConstraint=bt(e.kernelConstraint),i.biasConstraint=bt(e.biasConstraint),i.kernelRegularizer=nt(e.kernelRegularizer),i.biasRegularizer=nt(e.biasRegularizer),i.activityRegularizer=nt(e.activityRegularizer),i.supportsMasking=!0,i.inputSpec=[{minNDim:2}],i}return t.prototype.build=function(e){var i;e=Ke(e);var r=e[e.length-1];this.kernel==null&&(this.kernel=this.addWeight("kernel",[r,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:(i={},i[-1]=r,i)}],this.built=!0},t.prototype.computeOutputShape=function(e){e=Ke(e);var i=e.slice();return i[i.length-1]=this.units,i},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i);var a=xe(e),s=Nv(r.activation.getClassName()),o;return s!=null?o=Bn(a,r.kernel.read(),s,r.bias?r.bias.read():null):(o=Bn(a,r.kernel.read()),r.bias!=null&&(o=zn(o,r.bias.read())),r.activation!=null&&(o=r.activation.apply(o))),o})},t.prototype.getConfig=function(){var e={units:this.units,activation:wi(this.activation),useBias:this.useBias,kernelInitializer:st(this.kernelInitializer),biasInitializer:st(this.biasInitializer),kernelRegularizer:je(this.kernelRegularizer),biasRegularizer:je(this.biasRegularizer),activityRegularizer:je(this.activityRegularizer),kernelConstraint:yt(this.kernelConstraint),biasConstraint:yt(this.biasConstraint)},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Dense",t}(De);y.serialization.registerClass(ib);var rb=function(n){Q(t,n);function t(e){var i=this;return e=e||{},i=n.call(this,e)||this,i.inputSpec=[{minNDim:3}],i.dataFormat=e.dataFormat,i}return t.prototype.computeOutputShape=function(e){e=Ke(e);for(var i=0,r=e.slice(1);i<r.length;i++){var a=r[i];if(a==null)throw new M('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],gi(e,1)]},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i);var a=xe(e);if(r.dataFormat==="channelsFirst"&&a.rank>1){for(var s=[0],o=2;o<a.rank;++o)s.push(o);s.push(1),a=a.transpose(s)}return hk(a)})},t.prototype.getConfig=function(){var e={};this.dataFormat!=null&&(e.dataFormat=this.dataFormat);var i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Flatten",t}(De);y.serialization.registerClass(rb);var ab=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.supportsMasking=!0,i.activation=Si(e.activation),i}return t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i);var a=xe(e);return r.activation.apply(a)})},t.prototype.getConfig=function(){var e={activation:wi(this.activation)},i=n.prototype.getConfig.call(this);return 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e={inputDim:this.inputDim,outputDim:this.outputDim,embeddingsInitializer:st(this.embeddingsInitializer),embeddingsRegularizer:je(this.embeddingsRegularizer),activityRegularizer:je(this.activityRegularizer),embeddingsConstraint:yt(this.embeddingsConstraint),maskZero:this.maskZero,inputLength:this.inputLength},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Embedding",t}(De);y.serialization.registerClass(cb);var ar=function(n){Q(t,n);function t(e){var i=n.call(this,e||{})||this;return i.supportsMasking=!0,i}return t.prototype.mergeFunction=function(e){throw new Te},t.prototype.computeElementwiseOpOutputShape=function(e,i){if(e==null||i==null)return null;if(e.length<i.length)return this.computeElementwiseOpOutputShape(i,e);if(i.length===0)return e;for(var r=e.slice(0,e.length-i.length),a=0;a<i.length;++a){var s=e[e.length-i.length+a],o=i[a];if(s==null||o==null||s<0||o<0)r.push(null);else if(s===1)r.push(o);else if(o===1)r.push(s);else{if(s!==o)throw new 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Got input shapes: "+JSON.stringify(e))},t.prototype.mergeFunction=function(e){var i=this;return y.tidy(function(){return mh(e,i.axis)})},t.prototype.computeOutputShape=function(e){if(!(Array.isArray(e)&&Array.isArray(e[0])))throw new M("A `Concatenate` layer should be called on a list of inputs.");for(var i=e,r=i[0].slice(),a=this.axis<0?r.length+this.axis:this.axis,s=0,o=i.slice(1);s<o.length;s++){var l=o[s];if(r[a]==null||l[a]==null){r[a]=null;break}r[a]+=l[a]}return r},t.prototype.computeMask=function(e,i){var r=this;if(i==null)return null;if(!Array.isArray(i))throw new M("`mask` should be an array for Concatenate");if(!Array.isArray(e))throw new M("`inputs` should be an array for Concatenate");if(i.length!==e.length)throw new M("Mismatch in the length of mask ("+i.length+") "+("and the legnth of inputs ("+e.length+")"));return y.tidy(function(){var a=!0;if(i.forEach(function(u){if(u!=null){a=!1;return}}),a)return null;for(var s=[],o=0;o<e.length;++o)i[o]==null?s.push(y.onesLike(e[o]).asType("bool")):i[o].rank<e[o].rank?s.push(y.expandDims(i[o],-1)):s.push(i[o]);var l=y.concat(s,r.axis);return y.all(l,-1,!1)})},t.prototype.getConfig=function(){var e={axis:this.axis},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Concatenate",t}(ar);y.serialization.registerClass(gb);function Ya(n,t){for(;n<0;)n+=t;return n}function u4(n,t,e){if(n.shape.length>3||t.shape.length>3)throw new Te("batchDot is not implemented for tensors of 4D or higher rank yet");if(y.util.assert(n.shape.length>=2,function(){return"batchDot requires the rank of x to be >= 2, "+("but got "+n.shape.length)}),y.util.assert(n.shape.length>=2,function(){return"batchDot requires the rank of y to be >= 2, "+("but got "+t.shape.length)}),typeof e=="number"&&(e=[e,e]),n.dtype==="complex64"||t.dtype==="complex64")throw new Te("batchDot is not implemented for complex64-type Tensors yet.");var i=n.shape.length,r=t.shape.length;e==null&&(e=[i-1,r-2]);var a=e;return y.tidy(function(){var s;if(i>r){s=i-r;for(var o=[],l=0;l<s;++l)o.push(1);t=t.reshape(t.shape.concat(o))}else if(r>i){s=r-i;for(var o=[],l=0;l<s;++l)o.push(1);n=n.reshape(n.shape.concat(o))}else s=0;var u;if(n.shape.length===2&&t.shape.length===2)a[0]===a[1]?u=n.mul(t).sum(a[0]):u=n.transpose([1,0]).mul(t).sum(a[1]);else{var c=a[0]!==n.shape.length-1,h=a[1]===t.shape.length-1;u=n.matMul(t,c,h)}if(s>0){var d=void 0;i>r?d=i+r-3:d=i-1;for(var p=[],l=d;l<d+s;++l)p.push(l);u=u.squeeze(p)}return u.shape.length===1&&(u=u.expandDims(1)),u})}var vb=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.axes=e.axes,i.normalize=e.normalize==null?!1:e.normalize,i.supportsMasking=!0,i.reshapeRequired=!1,i}return t.prototype.build=function(e){y.util.assert(Array.isArray(e)&&e.length===2&&Array.isArray(e[0])&&Array.isArray(e[1]),function(){return"A `Dot` layer should be called on a list of exactly 2 inputs."});var i=e[0],r=e[1];if(i.length>3||r.length>3)throw new Te("Dot layer does not support tensors of 4D or higher rank yet.");var a=this.interpretAxes(i,r);if(i[a[0]]!==r[a[1]])throw new M("Dimension incompatibility: "+(i[a[0]]+" !== "+r[a[1]]))},t.prototype.mergeFunction=function(e){if(e.length!==2)throw new M("A `Dot` layer must be called on exactly 2 inputs, "+("but received "+e.length+" input(s)."));var i=e[0],r=e[1],a;return Array.isArray(this.axes)?a=this.axes.map(function(s,o){return Ya(s,e[o].shape.length)}):a=[Ya(this.axes,i.shape.length),Ya(this.axes,r.shape.length)],this.normalize&&(i=po(i,a[0]),r=po(r,a[1])),u4(i,r,a)},t.prototype.interpretAxes=function(e,i){var r;return Array.isArray(this.axes)?r=this.axes:r=[Ya(this.axes,e.length),Ya(this.axes,i.length)],r},t.prototype.computeOutputShape=function(e){y.util.assert(Array.isArray(e)&&e.length===2&&Array.isArray(e[0])&&Array.isArray(e[1]),function(){return"A `Dot` layer should be called on a list of exactly 2 inputs."});var i=e[0].slice(),r=e[1].slice();if(i.length>3||r.length>3)throw new Te("Dot layer does not support tensors of 4D or higher rank yet.");var a=this.interpretAxes(i,r);i.splice(a[0],1),r.splice(a[1],1),r.splice(0,1);var s=i.concat(r);return s.length===1&&s.push(1),s},t.prototype.computeMask=function(e,i){return null},t.prototype.getConfig=function(){var e={axes:this.axes,normalize:this.normalize},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="Dot",t}(ar);y.serialization.registerClass(vb);var yb=function(n){Q(t,n);function t(e){var i=n.call(this,e)||this;return i.supportsMasking=!0,i.stddev=e.stddev,i}return t.prototype.computeOutputShape=function(e){return e},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={stddev:this.stddev};return Object.assign(i,e),i},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i);var a=xe(e),s=function(){return so(a.shape,0,r.stddev).add(a)},o=_a(s,function(){return 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e},t.prototype.getConfig=function(){var e=n.prototype.getConfig.call(this),i={rate:this.rate};return Object.assign(i,e),i},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){if(r.rate<1&&r.rate>0){var a=r._getNoiseShape(e),s=function(){var o=xe(e),l=1.6732632423543772,u=1.0507009873554805,c=-l*u,h=y.greaterEqual(y.randomUniform(a),r.rate);h=Ba(h,"float32");var d=Math.pow((1-r.rate)*(1+r.rate*Math.pow(c,2)),-.5),p=-d*c*r.rate,f=o.mul(h).add(h.add(-1).mul(c));return f.mul(d).add(p)};return _a(s,function(){return xe(e)},i.training||!1)}return e})},t.className="AlphaDropout",t}(De);y.serialization.registerClass(wb);function Ka(n,t,e,i,r,a){a===void 0&&(a=.001);var s;if(n.rank===2)s=y.batchNorm2d(n,t,e,i,r,a);else if(n.rank===3)s=y.batchNorm3d(n,t,e,i,r,a);else if(n.rank===4)s=y.batchNorm4d(n,t,e,i,r,a);else throw new Te("batchNormalization is not implemented for array of rank "+n.rank+" yet");return s}function c4(n,t,e,i,r){return r===void 0&&(r=.001),y.tidy(function(){var a=y.moments(n,i),s=a.mean,o=a.variance,l=Ka(n,s,o,e,t,r);return[l,s,o]})}function h4(n,t,e,i,r){return r===void 0&&(r=.001),y.tidy(function(){for(var a=y.moments(n,i),s=a.mean,o=a.variance,l=[],u=0,c=yn(0,n.rank);u<c.length;u++){var h=c[u];i.indexOf(h)!==-1?l.push(1):l.push(n.shape[h])}var d=s.reshape(l),p=o.reshape(l),f=t==null?null:t.reshape(l),m=e==null?null:e.reshape(l),g=Ka(n,d,p,m,f,r);return[g,s,o]})}function d4(n,t,e,i,r){return r===void 0&&(r=.001),y.util.arraysEqual(i.slice().sort(),yn(0,n.rank-1))?c4(n,t,e,i,r):h4(n,t,e,i,r)}var Sb=function(n){Q(t,n);function t(e){var i=this;return e==null&&(e={}),i=n.call(this,e)||this,i.supportsMasking=!0,i.axis=e.axis==null?-1:e.axis,i.momentum=e.momentum==null?.99:e.momentum,i.epsilon=e.epsilon==null?.001:e.epsilon,i.center=e.center==null?!0:e.center,i.scale=e.scale==null?!0:e.scale,i.betaInitializer=tt(e.betaInitializer||"zeros"),i.gammaInitializer=tt(e.gammaInitializer||"ones"),i.movingMeanInitializer=tt(e.movingMeanInitializer||"zeros"),i.movingVarianceInitializer=tt(e.movingVarianceInitializer||"ones"),i.betaConstraint=bt(e.betaConstraint),i.gammaConstraint=bt(e.gammaConstraint),i.betaRegularizer=nt(e.betaRegularizer),i.gammaRegularizer=nt(e.gammaRegularizer),i}return t.prototype.build=function(e){var i;e=Ke(e);var r=this.axis>=0?this.axis:this.axis+e.length,a=e[r];if(a==null)throw new M("Axis "+r+" of input tensor should have a defined dimension but the layer received an input with shape "+(JSON.stringify(e)+"."));this.inputSpec=[new Nt({ndim:e.length,axes:(i={},i[r]=a,i)})];var s=[a];this.scale&&(this.gamma=this.addWeight("gamma",s,null,this.gammaInitializer,this.gammaRegularizer,!0,this.gammaConstraint)),this.center&&(this.beta=this.addWeight("beta",s,null,this.betaInitializer,this.betaRegularizer,!0,this.betaConstraint)),this.movingMean=this.addWeight("moving_mean",s,null,this.movingMeanInitializer,null,!1),this.movingVariance=this.addWeight("moving_variance",s,null,this.movingVarianceInitializer,null,!1),this.built=!0},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){var a=i.training==null?!1:i.training,s=xe(e),o=s.shape,l=o.length,u=yn(0,l),c=r.axis>=0?r.axis:r.axis+l;u.splice(c,1);var h=Qi(1,l);h[c]=o[c];var d=u.slice();d.sort();var p=!y.util.arraysEqual(d,yn(0,l).slice(0,l-1)),f=function(){if(p){var L=r.movingMean.read().reshape(h),x=r.movingVariance.read().reshape(h),C=r.center?r.beta.read().reshape(h):null,R=r.scale?r.gamma.read().reshape(h):null;return Ka(s,L,x,C,R,r.epsilon)}else return Ka(s,r.movingMean.read(),r.movingVariance.read(),r.beta==null?null:r.beta.read(),r.gamma==null?null:r.gamma.read(),r.epsilon)};if(!a)return f();var m=d4(s,r.gamma.read(),r.beta.read(),u,r.epsilon),g=m[0],v=m[1],b=m[2],w=function(L,x,C){y.tidy(function(){var R=1-C,D=L.read(),k=D.sub(x).mul(R);L.write(D.sub(k))})},S=function(){w(r.movingMean,v,r.momentum),w(r.movingVariance,b,r.momentum)};return S(),g})},t.prototype.getConfig=function(){var e={axis:this.axis,momentum:this.momentum,epsilon:this.epsilon,center:this.center,scale:this.scale,betaInitializer:st(this.betaInitializer),gammaInitializer:st(this.gammaInitializer),movingMeanInitializer:st(this.movingMeanInitializer),movingVarianceInitializer:st(this.movingVarianceInitializer),betaRegularizer:je(this.betaRegularizer),gammaRegularizer:je(this.gammaRegularizer),betaConstraint:yt(this.betaConstraint),gammaConstraint:yt(this.gammaConstraint)},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="BatchNormalization",t}(De);y.serialization.registerClass(Sb);var Lb=function(n){Q(t,n);function t(e){var i=this;if(e==null&&(e={}),i=n.call(this,e)||this,i.axis=e.axis==null?-1:e.axis,typeof i.axis=="number"){if(!Number.isInteger(i.axis))throw new Error("Expected axis to be an integer, but received "+i.axis)}else if(Array.isArray(i.axis))for(var r=0,a=i.axis;r<a.length;r++){var s=a[r];if(!Number.isInteger(s))throw new Error("Expected axis to be an array of integers, "+("but received "+JSON.stringify(i.axis)))}else throw new Error("Expected axis to be an integer or an array of integers, "+("but received "+JSON.stringify(i.axis)));return i.epsilon=e.epsilon==null?.001:e.epsilon,i.center=e.center==null?!0:e.center,i.scale=e.scale==null?!0:e.scale,i.betaInitializer=tt(e.betaInitializer||"zeros"),i.gammaInitializer=tt(e.gammaInitializer||"ones"),i.betaRegularizer=nt(e.betaRegularizer),i.gammaRegularizer=nt(e.gammaRegularizer),i.supportsMasking=!0,i}return t.prototype.build=function(e){e=Ke(e);var i=e.length;typeof this.axis=="number"&&(this.axis=[this.axis]);for(var r=0;r<this.axis.length;++r)this.axis[r]<0&&(this.axis[r]+=i);for(var a=0,s=this.axis;a<s.length;a++){var o=s[a];if(o<0||o>=i)throw new Error("Invalid axis: "+o)}if(this.axis.length!==mi(this.axis).length)throw new Error("Found duplicate axes in: "+this.axis);var l=this.axis.map(function(c){return e[c]}),u=!0;this.scale?this.gamma=this.addWeight("gamma",l,"float32",this.gammaInitializer,this.gammaRegularizer,u):this.gamma=null,this.center?this.beta=this.addWeight("beta",l,"float32",this.betaInitializer,this.betaRegularizer,u):this.beta=null,this.built=!0},t.prototype.call=function(e,i){var r=this,a=xe(e),s=a.shape,o=s.length;return y.tidy(function(){for(var l=!0,u=y.moments(a,r.axis,l),c=u.mean,h=u.variance,d=Qi(1,o),p=0,f=r.axis;p<f.length;p++){var m=f[p];d[m]=s[m]}for(var g=function(x){return x!=null&&x.shape.length!==o&&r.axis!==[o-1]?x.reshape(d):x},v=g(r.gamma.read()),b=g(r.beta.read()),w=[],S=[],L=0;L<o;++L)r.axis.indexOf(L)!==-1?(w.push(s[L]),S.push(1)):(w.push(1),S.push(s[L]));return c=c.tile(w),h=h.tile(w),v=v.tile(S),b=b.tile(S),Ka(a,c,h,b,v,r.epsilon)})},t.prototype.getConfig=function(){var e={axis:this.axis,epsilon:this.epsilon,center:this.center,scale:this.scale,betaInitializer:st(this.betaInitializer),gammaInitializer:st(this.gammaInitializer),betaRegularizer:je(this.betaRegularizer),gammaRegularizer:je(this.gammaRegularizer)},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="LayerNormalization",t}(De);y.serialization.registerClass(Lb);function p4(n,t,e){return y.tidy(function(){if(n.rank!==4)throw new M("temporalPadding expects input tensor to be 4-D, but received a "+(n.rank+"-D tensor."));if(t==null&&(t=[[1,1],[1,1]]),t.length!==2||t[0].length!==2||t[1].length!==2)throw new M("spatial2dPadding expects `padding` to be an Array of two Arrays, each of which is an Array of two integers.");if(e==null&&(e=vn()),e!=="channelsLast"&&e!=="channelsFirst")throw new M("Unknown data format: "+e+". Supported data formats are 'channelsLast' and 'channelsFirst.");var i;return e==="channelsFirst"?i=[[0,0],[0,0],t[0],t[1]]:i=[[0,0],t[0],t[1],[0,0]],y.pad(n,i)})}var Ib=function(n){Q(t,n);function t(e){var i=this;if(e==null&&(e={}),i=n.call(this,e)||this,i.dataFormat=e.dataFormat==null?vn():e.dataFormat,e.padding==null)i.padding=[[1,1],[1,1]];else if(typeof e.padding=="number")i.padding=[[e.padding,e.padding],[e.padding,e.padding]];else{if(e.padding=e.padding,e.padding.length!==2)throw new M("ZeroPadding2D expects padding to be a length-2 array, but "+("received a length-"+e.padding.length+" array."));var r=void 0,a=void 0;if(typeof e.padding[0]=="number")r=[e.padding[0],e.padding[0]],a=[e.padding[1],e.padding[1]];else{if(e.padding=e.padding,e.padding[0].length!==2)throw new M("ZeroPadding2D expects height padding to be a length-2 array, "+("but received a length-"+e.padding[0].length+" array."));if(r=e.padding[0],e.padding[1].length!==2)throw new M("ZeroPadding2D expects width padding to be a length-2 array, "+("but received a length-"+e.padding[1].length+" array."));a=e.padding[1]}i.padding=[r,a]}return i.inputSpec=[new Nt({ndim:4})],i}return t.prototype.computeOutputShape=function(e){e=Ke(e);var i,r;return this.dataFormat==="channelsFirst"?(e[2]!=null&&e[2]>=0?i=e[2]+this.padding[0][0]+this.padding[0][1]:i=null,e[3]!=null&&e[3]>=0?r=e[3]+this.padding[1][0]+this.padding[1][1]:r=null,[e[0],e[1],i,r]):(e[1]!=null&&e[1]>=0?i=e[1]+this.padding[0][0]+this.padding[0][1]:i=null,e[2]!=null&&e[2]>=0?r=e[2]+this.padding[1][0]+this.padding[1][1]:r=null,[e[0],i,r,e[3]])},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){return p4(xe(e),r.padding,r.dataFormat)})},t.prototype.getConfig=function(){var e={padding:this.padding,dataFormat:this.dataFormat},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t.className="ZeroPadding2D",t}(De);y.serialization.registerClass(Ib);function To(n,t,e,i,r,a){return y.tidy(function(){ct(r),kv(a),nn(i),e==null&&(e=[1,1]),i==null&&(i="valid"),r==null&&(r=vn()),a==null&&(a="max"),n=Vh(n,r);var s,o=i==="same"?"same":"valid";return a==="max"?s=y.maxPool(n,t,e,o):s=y.avgPool(n,t,e,o),r==="channelsFirst"&&(s=y.transpose(s,[0,3,1,2])),s})}function Ab(n,t,e,i,r,a){return y.tidy(function(){ct(r),kv(a),nn(i),e==null&&(e=[1,1,1]),i==null&&(i="valid"),r==null&&(r=vn()),a==null&&(a="max"),n=_y(n,r);var s,o=i==="same"?"same":"valid";return a==="max"?s=y.maxPool3d(n,t,e,o):s=y.avgPool3d(n,t,e,o),r==="channelsFirst"&&(s=y.transpose(s,[0,4,1,2,3])),s})}var Tb=function(n){Q(t,n);function t(e){var i=this;if(e.poolSize==null&&(e.poolSize=2),i=n.call(this,e)||this,typeof e.poolSize=="number")i.poolSize=[e.poolSize];else if(Array.isArray(e.poolSize)&&e.poolSize.length===1&&typeof e.poolSize[0]=="number")i.poolSize=e.poolSize;else throw new M("poolSize for 1D convolutional layer must be a number or an Array of a single number, but received "+(""+JSON.stringify(e.poolSize)));if(Tt(i.poolSize,"poolSize"),e.strides==null)i.strides=i.poolSize;else if(typeof e.strides=="number")i.strides=[e.strides];else if(Array.isArray(e.strides)&&e.strides.length===1&&typeof e.strides[0]=="number")i.strides=e.strides;else throw new M("strides for 1D convolutional layer must be a number or an Array of a single number, but received "+(""+JSON.stringify(e.strides)));return Tt(i.strides,"strides"),i.padding=e.padding==null?"valid":e.padding,nn(i.padding),i.inputSpec=[new Nt({ndim:3})],i}return t.prototype.computeOutputShape=function(e){e=Ke(e);var i=Sn(e[1],this.poolSize[0],this.padding,this.strides[0]);return[e[0],i,e[2]]},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){r.invokeCallHook(e,i),e=za(xe(e),2);var a=r.poolingFunction(xe(e),[r.poolSize[0],1],[r.strides[0],1],r.padding,"channelsLast");return y.squeeze(a,[2])})},t.prototype.getConfig=function(){var e={poolSize:this.poolSize,padding:this.padding,strides:this.strides},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t}(De),Nb=function(n){Q(t,n);function t(e){return n.call(this,e)||this}return t.prototype.poolingFunction=function(e,i,r,a,s){return ct(s),nn(a),To(e,i,r,a,s,"max")},t.className="MaxPooling1D",t}(Tb);y.serialization.registerClass(Nb);var xb=function(n){Q(t,n);function t(e){return n.call(this,e)||this}return t.prototype.poolingFunction=function(e,i,r,a,s){return ct(s),nn(a),To(e,i,r,a,s,"avg")},t.className="AveragePooling1D",t}(Tb);y.serialization.registerClass(xb);var Cb=function(n){Q(t,n);function t(e){var i=this;if(e.poolSize==null&&(e.poolSize=[2,2]),i=n.call(this,e)||this,i.poolSize=Array.isArray(e.poolSize)?e.poolSize:[e.poolSize,e.poolSize],e.strides==null)i.strides=i.poolSize;else if(Array.isArray(e.strides)){if(e.strides.length!==2)throw new M("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+"."));i.strides=e.strides}else i.strides=[e.strides,e.strides];return Tt(i.poolSize,"poolSize"),Tt(i.strides,"strides"),i.padding=e.padding==null?"valid":e.padding,i.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,ct(i.dataFormat),nn(i.padding),i.inputSpec=[new Nt({ndim:4})],i}return t.prototype.computeOutputShape=function(e){e=Ke(e);var i=this.dataFormat==="channelsFirst"?e[2]:e[1],r=this.dataFormat==="channelsFirst"?e[3]:e[2];return i=Sn(i,this.poolSize[0],this.padding,this.strides[0]),r=Sn(r,this.poolSize[1],this.padding,this.strides[1]),this.dataFormat==="channelsFirst"?[e[0],e[1],i,r]:[e[0],i,r,e[3]]},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){return r.invokeCallHook(e,i),r.poolingFunction(xe(e),r.poolSize,r.strides,r.padding,r.dataFormat)})},t.prototype.getConfig=function(){var e={poolSize:this.poolSize,padding:this.padding,strides:this.strides,dataFormat:this.dataFormat},i=n.prototype.getConfig.call(this);return Object.assign(e,i),e},t}(De),Rb=function(n){Q(t,n);function t(e){return n.call(this,e)||this}return t.prototype.poolingFunction=function(e,i,r,a,s){return ct(s),nn(a),To(e,i,r,a,s,"max")},t.className="MaxPooling2D",t}(Cb);y.serialization.registerClass(Rb);var Ob=function(n){Q(t,n);function t(e){return n.call(this,e)||this}return t.prototype.poolingFunction=function(e,i,r,a,s){return ct(s),nn(a),To(e,i,r,a,s,"avg")},t.className="AveragePooling2D",t}(Cb);y.serialization.registerClass(Ob);var Eb=function(n){Q(t,n);function t(e){var i=this;if(e.poolSize==null&&(e.poolSize=[2,2,2]),i=n.call(this,e)||this,i.poolSize=Array.isArray(e.poolSize)?e.poolSize:[e.poolSize,e.poolSize,e.poolSize],e.strides==null)i.strides=i.poolSize;else if(Array.isArray(e.strides)){if(e.strides.length!==3)throw new M("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+"."));i.strides=e.strides}else i.strides=[e.strides,e.strides,e.strides];return Tt(i.poolSize,"poolSize"),Tt(i.strides,"strides"),i.padding=e.padding==null?"valid":e.padding,i.dataFormat=e.dataFormat==null?"channelsLast":e.dataFormat,ct(i.dataFormat),nn(i.padding),i.inputSpec=[new Nt({ndim:5})],i}return t.prototype.computeOutputShape=function(e){e=Ke(e);var i=this.dataFormat==="channelsFirst"?e[2]:e[1],r=this.dataFormat==="channelsFirst"?e[3]:e[2],a=this.dataFormat==="channelsFirst"?e[4]:e[3];return i=Sn(i,this.poolSize[0],this.padding,this.strides[0]),r=Sn(r,this.poolSize[1],this.padding,this.strides[1]),a=Sn(a,this.poolSize[2],this.padding,this.strides[2]),this.dataFormat==="channelsFirst"?[e[0],e[1],i,r,a]:[e[0],i,r,a,e[4]]},t.prototype.call=function(e,i){var r=this;return y.tidy(function(){return 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Missing built-in atob() or Buffer()")}function nw(n,t){var e=Array.isArray(n)?String.fromCharCode.apply(null,n):OW(n);return t?e:e.toLowerCase()}function ed(n,t,e,i){i===void 0&&(i=!1);var r=n[t];return r!=null?nw(r.s,i):e}function td(n,t,e){var i=n[t];return i?i.b:e}function nd(n,t,e){var i=n[t]||{},r=i.i!=null?i.i:i.f!=null?i.f:e;return typeof r=="number"?r:parseInt(r,10)}function id(n){typeof n=="string"&&(n=In[n]);switch(n){case In.DT_FLOAT:return"float32";case In.DT_INT32:case In.DT_INT64:case In.DT_INT8:case In.DT_UINT8:return"int32";case In.DT_BOOL:return"bool";case In.DT_DOUBLE:return"float32";case In.DT_STRING:return"string";default:return null}}function ew(n,t,e){var i=n[t];return i&&i.func?i.func.name:e}function rd(n,t,e){var i=n[t];return i&&i.type?id(i.type):e}function ad(n,t,e){var i=n[t];return i&&i.list&&i.list.type?i.list.type.map(function(r){return id(r)}):e}function iw(n){return n.unknownRank?void 0:n.dim!=null?n.dim.map(function(t){return typeof 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i=this.node.rawAttrs[t];if(i.tensor!=null)return Vt(t,this.tensorMap,this.context);if(i.i!=null||i.f!=null)return nd(this.node.rawAttrs,t,e);if(i.s!=null)return ed(this.node.rawAttrs,t,e);if(i.b!=null)return td(this.node.rawAttrs,t,e);if(i.shape!=null)return sd(this.node.rawAttrs,t,e);if(i.type!=null)return rd(this.node.rawAttrs,t,e);if(i.list!=null){if(i.list.i!=null||i.list.f!=null)return od(this.node.rawAttrs,t,e);if(i.list.s!=null)return ld(this.node.rawAttrs,t,e);if(i.list.shape!=null)return ud(this.node.rawAttrs,t,e);if(i.list.b!=null)return cd(this.node.rawAttrs,t,e);if(i.list.type!=null)return ad(this.node.rawAttrs,t,e)}return e},n}();var DW=function(n,t,e){switch(n.op){case"BiasAdd":case"AddV2":case"Add":return[B.add(A("a",n,t,e),A("b",n,t,e))];case"AddN":return[B.addN(A("tensors",n,t,e))];case"FloorMod":case"Mod":return[B.mod(A("a",n,t,e),A("b",n,t,e))];case"Mul":return[B.mul(A("a",n,t,e),A("b",n,t,e))];case"RealDiv":case"Div":return[B.div(A("a",n,t,e),A("b",n,t,e))];case"DivNoNan":return[B.divNoNan(A("a",n,t,e),A("b",n,t,e))];case"FloorDiv":return[B.floorDiv(A("a",n,t,e),A("b",n,t,e))];case"Sub":return[B.sub(A("a",n,t,e),A("b",n,t,e))];case"Minimum":return[B.minimum(A("a",n,t,e),A("b",n,t,e))];case"Maximum":return[B.maximum(A("a",n,t,e),A("b",n,t,e))];case"Pow":return[B.pow(A("a",n,t,e),A("b",n,t,e))];case"SquaredDifference":return[B.squaredDifference(A("a",n,t,e),A("b",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};var kW=function(n,t,e){switch(n.op){case"Abs":case"ComplexAbs":return[B.abs(A("x",n,t,e))];case"Acos":return[B.acos(A("x",n,t,e))];case"Acosh":return[B.acosh(A("x",n,t,e))];case"Asin":return[B.asin(A("x",n,t,e))];case"Asinh":return[B.asinh(A("x",n,t,e))];case"Atan":return[B.atan(A("x",n,t,e))];case"Atan2":return[B.atan2(A("x",n,t,e),A("y",n,t,e))];case"Atanh":return[B.atanh(A("x",n,t,e))];case"Ceil":return[B.ceil(A("x",n,t,e))];case"Complex":return[B.complex(A("real",n,t,e),A("imag",n,t,e))];case"Cos":return[B.cos(A("x",n,t,e))];case"Cosh":return[B.cosh(A("x",n,t,e))];case"Elu":return[B.elu(A("x",n,t,e))];case"Erf":return[B.erf(A("x",n,t,e))];case"Exp":return[B.exp(A("x",n,t,e))];case"Expm1":return[B.expm1(A("x",n,t,e))];case"Floor":return[B.floor(A("x",n,t,e))];case"Log":return[B.log(A("x",n,t,e))];case"Log1p":return[B.log1p(A("x",n,t,e))];case"Imag":return[B.imag(A("x",n,t,e))];case"Neg":return[B.neg(A("x",n,t,e))];case"Reciprocal":return[B.reciprocal(A("x",n,t,e))];case"Real":return[B.real(A("x",n,t,e))];case"Relu":return[B.relu(A("x",n,t,e))];case"Round":return[B.round(A("x",n,t,e))];case"Selu":return[B.selu(A("x",n,t,e))];case"Sigmoid":return[B.sigmoid(A("x",n,t,e))];case"Sin":return[B.sin(A("x",n,t,e))];case"Sign":return[B.sign(A("x",n,t,e))];case"Sinh":return[B.sinh(A("x",n,t,e))];case"Softplus":return[B.softplus(A("x",n,t,e))];case"Sqrt":return[B.sqrt(A("x",n,t,e))];case"Square":return[B.square(A("x",n,t,e))];case"Tanh":return[B.tanh(A("x",n,t,e))];case"Tan":return[B.tan(A("x",n,t,e))];case"Relu6":case"ClipByValue":return[B.clipByValue(A("x",n,t,e),A("clipValueMin",n,t,e),A("clipValueMax",n,t,e))];case"Rsqrt":return[B.rsqrt(Vt(n.inputNames[0],t,e))];case"Prod":return[B.prod(A("x",n,t,e),A("axes",n,t,e))];case"LeakyRelu":return[B.leakyRelu(A("x",n,t,e),A("alpha",n,t,e))];case"Prelu":return[B.prelu(A("x",n,t,e),A("alpha",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};function hn(n,t,e){e===void 0&&(e=""),B.util.assert(FW(n,t),function(){return e+(" Shapes "+n+" and "+t+" must match")})}function FW(n,t){if(n.length!==t.length)return!1;for(var e=0;e<n.length;e++)if(n[e]!==-1&&t[e]!==-1&&n[e]!==t[e])return!1;return!0}var WW=function(){function n(t,e,i,r,a,s,o){this.name=t,this.dtype=e,this.maxSize=i,this.elementShape=r,this.identicalElementShapes=a,this.dynamicSize=s,this.clearAfterRead=o,this.tensors=[],this.closed_=!1,this.idTensor=B.scalar(0),B.keep(this.idTensor)}return Object.defineProperty(n.prototype,"id",{get:function(){return this.idTensor.id},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"closed",{get:function(){return this.closed_},enumerable:!0,configurable:!0}),n.prototype.clearAndClose=function(t){this.tensors.forEach(function(e){(t==null||!t.has(e.tensor.id))&&e.tensor.dispose()}),this.tensors=[],this.closed_=!0,this.idTensor.dispose()},n.prototype.size=function(){return this.tensors.length},n.prototype.read=function(t){if(this.closed_)throw new Error("TensorArray "+this.name+" has already been closed.");if(t<0||t>=this.size())throw new Error("Tried to read from index "+t+", but array size is: "+this.size());var e=this.tensors[t];if(e.cleared)throw new Error("TensorArray "+this.name+": Could not read index "+t+" twice because it was cleared after a previous read (perhaps try setting clear_after_read = false?).");return this.clearAfterRead&&(e.cleared=!0),e.read=!0,e.tensor},n.prototype.readMany=function(t){var e=this;return t.map(function(i){return e.read(i)})},n.prototype.write=function(t,e){if(this.closed_)throw new Error("TensorArray "+this.name+" has already been closed.");if(t<0||!this.dynamicSize&&t>=this.maxSize)throw new Error("Tried to write to index "+t+", but array is not resizeable and size is: "+this.maxSize);var i=this.tensors[t]||{};if(e.dtype!==this.dtype)throw new Error("TensorArray "+this.name+": Could not write to TensorArray index "+t+`,
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        `+r+", and tensor's shape is: "+e.shape);if(!this.dynamicSize&&t.length!==this.maxSize)throw new Error("TensorArray's size is not equal to the size of lengths ("+this.maxSize+" vs. "+t.length+"), and the TensorArray is not marked as dynamically resizeable");var s=r===0?0:e.size/r,o=[];B.tidy(function(){e=B.reshape(e,[1,r,s]);for(var c=0;c<t.length;++c){var h=c===0?0:a[c-1],d=[0,h,0],p=[1,t[c],s];o[c]=B.reshape(B.slice(e,d,p),i.elementShape)}return o});for(var l=[],u=0;u<t.length;u++)l[u]=u;this.writeMany(l,o)},n}();var Ro=function(){function n(t,e,i,r){r===void 0&&(r=-1),this.tensors=t,this.elementShape=e,this.elementDtype=i,t!=null&&t.forEach(function(a){if(i!==a.dtype)throw new Error("Invalid data types; op elements "+i+", but list elements "+a.dtype);hn(e,a.shape,"TensorList shape mismatch: "),B.keep(a)}),this.idTensor=B.scalar(0),this.maxNumElements=r,B.keep(this.idTensor)}return Object.defineProperty(n.prototype,"id",{get:function(){return this.idTensor.id},enumerable:!0,configurable:!0}),n.prototype.copy=function(){return new n(this.tensors.slice(),this.elementShape,this.elementDtype)},n.prototype.clearAndClose=function(t){this.tensors.forEach(function(e){(t==null||!t.has(e.id))&&e.dispose()}),this.tensors.length=0,this.idTensor.dispose()},n.prototype.size=function(){return this.tensors.length},n.prototype.stack=function(t,e,i){var r=this;if(i===void 0&&(i=-1),e!==this.elementDtype)throw new Error("Invalid data types; op elements "+e+", but list elements "+this.elementDtype);if(i!==-1&&this.tensors.length!==i)throw new Error("Operation expected a list with "+i+" elements but got a list with "+this.tensors.length+" elements.");return hn(t,this.elementShape,"TensorList shape mismatch: "),B.tidy(function(){var a=r.tensors.map(function(s){return B.reshape(s,t)});return B.stack(a,0)})},n.prototype.popBack=function(t,e){if(e!==this.elementDtype)throw new Error("Invalid data types; op elements "+e+", but list elements "+this.elementDtype);if(this.size()===0)throw new Error("Trying to pop from an empty list.");var i=this.tensors.pop();return hn(i.shape,t,"TensorList shape mismatch: "),B.reshape(i,t)},n.prototype.pushBack=function(t){if(t.dtype!==this.elementDtype)throw new Error("Invalid data types; op elements "+t.dtype+", but list elements "+this.elementDtype);if(hn(t.shape,this.elementShape,"TensorList shape mismatch: "),this.maxNumElements===this.size())throw new Error("Trying to push element into a full list.");B.keep(t),this.tensors.push(t)},n.prototype.resize=function(t){if(t<0)throw new Error("TensorListResize expects size to be non-negative. 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0:i=n.op;switch(i){case"If":return[3,1];case"StatelessIf":return[3,1];case"While":return[3,3];case"StatelessWhile":return[3,3];case"LoopCond":return[3,9];case"Switch":return[3,10];case"Merge":return[3,12];case"Enter":return[3,13];case"Exit":return[3,14];case"NextIteration":return[3,15];case"TensorArrayV3":return[3,16];case"TensorArrayWriteV3":return[3,17];case"TensorArrayReadV3":return[3,18];case"TensorArrayGatherV3":return[3,19];case"TensorArrayScatterV3":return[3,20];case"TensorArrayConcatV3":return[3,21];case"TensorArraySplitV3":return[3,22];case"TensorArraySizeV3":return[3,23];case"TensorArrayCloseV3":return[3,24];case"TensorListSetItem":return[3,25];case"TensorListGetItem":return[3,26];case"TensorListScatterV2":return[3,27];case"TensorListScatter":return[3,27];case"TensorListReserve":return[3,28];case"TensorListGather":return[3,29];case"TensorListStack":return[3,30];case"TensorListFromTensor":return[3,31];case"TensorListConcat":return[3,32];case"TensorListPushBack":return[3,33];case"TensorListPopBack":return[3,34];case"TensorListSplit":return[3,35]}return[3,36];case 1:return r=A("thenBranch",n,t,e),a=A("elseBranch",n,t,e),s=A("cond",n,t,e),o=A("args",n,t,e),[4,s.data()];case 2:return l=Ot.sent(),l[0]?[2,e.functionMap[r].executeFunctionAsync(o,e.tensorArrayMap,e.tensorListMap)]:[2,e.functionMap[a].executeFunctionAsync(o,e.tensorArrayMap,e.tensorListMap)];case 3:return u=A("body",n,t,e),c=A("cond",n,t,e),o=A("args",n,t,e),[4,e.functionMap[c].executeFunctionAsync(o,e.tensorArrayMap,e.tensorListMap)];case 4:return h=Ot.sent(),d=o.map(function(It){return It.id}),[4,h[0].data()];case 5:l=Ot.sent(),h.forEach(function(It){!It.kept&&d.indexOf(It.id)===-1&&It.dispose()}),p=o,f=function(){var It,Ce,Ft;return Ln(this,function(pt){switch(pt.label){case 0:return It=p,[4,e.functionMap[u].executeFunctionAsync(p,e.tensorArrayMap,e.tensorListMap)];case 1:return p=pt.sent(),Ce=p.map(function(it){return it.id}),It.forEach(function(it){!it.kept&&d.indexOf(it.id)===-1&&Ce.indexOf(it.id)===-1&&it.dispose()}),[4,e.functionMap[c].executeFunctionAsync(p,e.tensorArrayMap,e.tensorListMap)];case 2:return Ft=pt.sent(),[4,Ft[0].data()];case 3:return l=pt.sent(),Ft.forEach(function(it){!it.kept&&d.indexOf(it.id)===-1&&Ce.indexOf(it.id)===-1&&it.dispose()}),[2]}})},Ot.label=6;case 6:return l[0]?[5,f()]:[3,8];case 7:return Ot.sent(),[3,6];case 8:return[2,p];case 9:return m=A("pred",n,t,e),[2,[Qn(m)]];case 10:return m=A("pred",n,t,e),g=A("data",n,t,e),g.kept||(g=Qn(g)),[4,m.data()];case 11:return[2,Ot.sent()[0]?[void 0,g]:[g,void 0]];case 12:return v=n.inputNames.find(function(It){return Vt(It,t,e)!==void 0}),v?(g=Vt(v,t,e),[2,[Qn(g)]]):[2,void 0];case 13:return b=A("frameName",n,t,e),g=A("tensor",n,t,e),e.enterFrame(b),[2,[Qn(g)]];case 14:return g=A("tensor",n,t,e),e.exitFrame(),[2,[Qn(g)]];case 15:return g=A("tensor",n,t,e),e.nextIteration(),[2,[Qn(g)]];case 16:return w=A("size",n,t,e),S=A("dtype",n,t,e),L=A("elementShape",n,t,e),x=A("dynamicSize",n,t,e),C=A("clearAfterRead",n,t,e),R=A("identicalElementShapes",n,t,e),D=A("name",n,t,e),k=new WW(D,S,w,L,R,x,C),e.addTensorArray(k),[2,[k.idTensor,B.scalar(1)]];case 17:return W=A("tensorArrayId",n,t,e),F=A("index",n,t,e),P=A("tensor",n,t,e),H=e.getTensorArray(W.id),H.write(F,P),[2,[H.idTensor]];case 18:return _=A("tensorArrayId",n,t,e),K=A("index",n,t,e),j=e.getTensorArray(_.id),[2,[j.read(K)]];case 19:return q=A("tensorArrayId",n,t,e),G=A("indices",n,t,e),Z=A("dtype",n,t,e),X=e.getTensorArray(q.id),[2,[X.gather(G,Z)]];case 20:return ee=A("tensorArrayId",n,t,e),ne=A("indices",n,t,e),ie=A("tensor",n,t,e),te=e.getTensorArray(ee.id),te.scatter(ne,ie),[2,[te.idTensor]];case 21:return re=A("tensorArrayId",n,t,e),le=e.getTensorArray(re.id),he=A("dtype",n,t,e),[2,[le.concat(he)]];case 22:return ye=A("tensorArrayId",n,t,e),Oe=A("tensor",n,t,e),ke=A("lengths",n,t,e),_e=e.getTensorArray(ye.id),_e.split(ke,Oe),[2,[_e.idTensor]];case 23:return Me=A("tensorArrayId",n,t,e),ht=e.getTensorArray(Me.id),[2,[B.scalar(ht.size(),"int32")]];case 24:return Lt=A("tensorArrayId",n,t,e),Ge=e.getTensorArray(Lt.id),Ge.clearAndClose(),[2,[Ge.idTensor]];case 25:return Ue=A("tensorListId",n,t,e),F=A("index",n,t,e),P=A("tensor",n,t,e),me=e.getTensorList(Ue.id),me.setItem(F,P),[2,[me.idTensor]];case 26:return Ue=A("tensorListId",n,t,e),K=A("index",n,t,e),L=A("elementShape",n,t,e),kt=A("elementDType",n,t,e),me=e.getTensorList(Ue.id),[2,[me.getItem(K,L,kt)]];case 27:return ne=A("indices",n,t,e),ie=A("tensor",n,t,e),L=A("elementShape",n,t,e),lt=A("numElements",n,t,e),me=zW(ie,ne,L,lt),e.addTensorList(me),[2,[me.idTensor]];case 28:return L=A("elementShape",n,t,e),dt=A("elementDType",n,t,e),lt=A("numElements",n,t,e),me=BW(L,dt,lt),e.addTensorList(me),[2,[me.idTensor]];case 29:return q=A("tensorListId",n,t,e),G=A("indices",n,t,e),L=A("elementShape",n,t,e),dt=A("elementDType",n,t,e),me=e.getTensorList(q.id),[2,[me.gather(G,dt,L)]];case 30:return Ue=A("tensorListId",n,t,e),L=A("elementShape",n,t,e),dt=A("elementDType",n,t,e),lt=A("numElements",n,t,e),me=e.getTensorList(Ue.id),[2,[me.stack(L,dt,lt)]];case 31:return Cn=A("tensor",n,t,e),L=A("elementShape",n,t,e),dt=A("elementDType",n,t,e),me=UW(Cn,L,dt),e.addTensorList(me),[2,[me.idTensor]];case 32:return re=A("tensorListId",n,t,e),me=e.getTensorList(re.id),he=A("dtype",n,t,e),L=A("elementShape",n,t,e),[2,[me.concat(he,L)]];case 33:return Ue=A("tensorListId",n,t,e),P=A("tensor",n,t,e),me=e.getTensorList(Ue.id),me.pushBack(P),[2,[me.idTensor]];case 34:return Ue=A("tensorListId",n,t,e),L=A("elementShape",n,t,e),kt=A("elementDType",n,t,e),me=e.getTensorList(Ue.id),[2,[me.popBack(L,kt)]];case 35:return Oe=A("tensor",n,t,e),L=A("elementShape",n,t,e),ke=A("lengths",n,t,e),me=PW(Oe,ke,L),e.addTensorList(me),[2,[me.idTensor]];case 36:throw TypeError("Node type "+n.op+" is not implemented")}})})};function rw(n,t,e){var i=A("fusedOps",n,t,e),r=i[0],a=i[1],s=r==="biasadd",o=a==="prelu",l=r==="fusedbatchnorm",u=A("numArgs",n,t,e);if(s){if(o&&u!==2)throw new Error("FusedConv2d and DepthwiseConv2d with BiasAdd and Prelu must have two extra arguments: bias and alpha.");if(!o&&u!==1)throw new Error("FusedConv2d and DepthwiseConv2d with BiasAdd must have one extra argument: bias.")}if(l)throw new Error("FusedConv2d and DepthwiseConv2d with FusedBatchNorm is not supported.");var c=A("strides",n,t,e),h=Co(n,t,e),d=A("dataFormat",n,t,e).toUpperCase(),p=A("dilations",n,t,e),f=A("args",n,t,e),m=f[0],g=f[1];return{stride:c,pad:h,dataFormat:d,dilations:p,biasArg:m,preluArg:g,activationFunc:a}}var HW=function(n,t,e){switch(n.op){case"Conv1D":{var i=A("stride",n,t,e),r=A("pad",n,t,e),a=A("dataFormat",n,t,e).toUpperCase(),s=A("dilation",n,t,e);return[B.conv1d(A("x",n,t,e),A("filter",n,t,e),i,r,a,s)]}case"Conv2D":{var i=A("strides",n,t,e),r=Co(n,t,e),a=A("dataFormat",n,t,e).toUpperCase(),o=A("dilations",n,t,e);return[B.conv2d(A("x",n,t,e),A("filter",n,t,e),[i[1],i[2]],r,a,[o[1],o[2]])]}case"_FusedConv2D":{var l=rw(n,t,e),i=l.stride,r=l.pad,a=l.dataFormat,o=l.dilations,u=l.biasArg,c=l.preluArg,h=l.activationFunc;return[B.fused.conv2d({x:A("x",n,t,e),filter:A("filter",n,t,e),strides:[i[1],i[2]],pad:r,dataFormat:a,dilations:[o[1],o[2]],bias:u,activation:h,preluActivationWeights:c})]}case"FusedDepthwiseConv2dNative":{var d=rw(n,t,e),i=d.stride,r=d.pad,a=d.dataFormat,o=d.dilations,u=d.biasArg,c=d.preluArg,h=d.activationFunc;return[B.fused.depthwiseConv2d({x:A("x",n,t,e),filter:A("filter",n,t,e),strides:[i[1],i[2]],pad:r,dataFormat:a,dilations:[o[1],o[2]],bias:u,activation:h,preluActivationWeights:c})]}case"Conv2DBackpropInput":case"Conv2dTranspose":{var p=A("outputShape",n,t,e),i=A("strides",n,t,e),r=Co(n,t,e);return[B.conv2dTranspose(A("x",n,t,e),A("filter",n,t,e),p,[i[1],i[2]],r)]}case"DepthwiseConv2dNative":case"DepthwiseConv2d":{var i=A("strides",n,t,e),r=Co(n,t,e),o=A("dilations",n,t,e),a=A("dataFormat",n,t,e).toUpperCase();return[B.depthwiseConv2d(A("input",n,t,e),A("filter",n,t,e),[i[1],i[2]],r,a,[o[1],o[2]])]}case"Conv3D":{var i=A("strides",n,t,e),r=A("pad",n,t,e),a=A("dataFormat",n,t,e).toUpperCase(),o=A("dilations",n,t,e);return[B.conv3d(A("x",n,t,e),A("filter",n,t,e),[i[1],i[2],i[3]],r,a,[o[1],o[2],o[3]])]}case"AvgPool":{var i=A("strides",n,t,e),r=A("pad",n,t,e),f=A("kernelSize",n,t,e);return[B.avgPool(A("x",n,t,e),[f[1],f[2]],[i[1],i[2]],r)]}case"MaxPool":{var i=A("strides",n,t,e),r=A("pad",n,t,e),f=A("kernelSize",n,t,e);return[B.maxPool(A("x",n,t,e),[f[1],f[2]],[i[1],i[2]],r)]}case"MaxPoolWithArgmax":{var i=A("strides",n,t,e),r=A("pad",n,t,e),f=A("kernelSize",n,t,e),m=A("includeBatchInIndex",n,t,e),g=B.maxPoolWithArgmax(A("x",n,t,e),[f[1],f[2]],[i[1],i[2]],r,m),v=g.result,b=g.indexes;return[v,b]}case"AvgPool3D":{var i=A("strides",n,t,e),r=A("pad",n,t,e),f=A("kernelSize",n,t,e);return[B.avgPool3d(A("x",n,t,e),[f[1],f[2],f[3]],[i[1],i[2],i[3]],r)]}case"MaxPool3D":{var i=A("strides",n,t,e),r=A("pad",n,t,e),f=A("kernelSize",n,t,e);return[B.maxPool3d(A("x",n,t,e),[f[1],f[2],f[3]],[i[1],i[2],i[3]],r)]}case"Dilation2D":{var w=A("strides",n,t,e),r=A("pad",n,t,e),o=A("dilations",n,t,e),S=w[1],L=w[2],x=o[1],C=o[2];return[B.dilation2d(A("x",n,t,e),A("filter",n,t,e),[S,L],r,[x,C],"NHWC")]}default:throw TypeError("Node type "+n.op+" is not implemented")}};var VW=function(n,t,e){switch(n.op){case"Fill":{var i=A("shape",n,t,e),r=A("dtype",n,t,e),a=A("value",n,t,e);return[B.fill(i,a,r)]}case"LinSpace":{var s=A("start",n,t,e),o=A("stop",n,t,e),l=A("num",n,t,e);return[B.linspace(s,o,l)]}case"Multinomial":{var u=A("logits",n,t,e),c=A("numSamples",n,t,e),h=A("seed",n,t,e);return[B.multinomial(u,c,h)]}case"OneHot":{var d=A("indices",n,t,e),p=A("depth",n,t,e),f=A("onValue",n,t,e),m=A("offValue",n,t,e);return[B.oneHot(d,p,f,m)]}case"Ones":return[B.ones(A("shape",n,t,e),A("dtype",n,t,e))];case"OnesLike":return[B.onesLike(A("x",n,t,e))];case"RandomUniform":return[B.randomUniform(A("shape",n,t,e),A("minval",n,t,e),A("maxval",n,t,e),A("dtype",n,t,e))];case"Range":{var s=A("start",n,t,e),g=A("stop",n,t,e),v=A("step",n,t,e);return[B.range(s,g,v,A("dtype",n,t,e))]}case"TruncatedNormal":{var i=A("shape",n,t,e),b=A("mean",n,t,e),w=A("stdDev",n,t,e),h=A("seed",n,t,e);return[B.truncatedNormal(i,b,w,A("dtype",n,t,e),h)]}case"Zeros":return[B.zeros(A("shape",n,t,e),A("dtype",n,t,e))];case"ZerosLike":return[B.zerosLike(A("x",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};var qW=void 0;function hd(n,t,e){var i=A("boxes",n,t,e),r=A("scores",n,t,e),a=A("maxOutputSize",n,t,e),s=A("iouThreshold",n,t,e),o=A("scoreThreshold",n,t,e),l=A("softNmsSigma",n,t,e);return{boxes:i,scores:r,maxOutputSize:a,iouThreshold:s,scoreThreshold:o,softNmsSigma:l}}var GW=function(n,t,e){return Pn(qW,void 0,void 0,function(){var i,r,a,s,o,l,u,c,h,d,a,s,o,l,u,p,h,f,a,s,o,l,u,m,h;return Ln(this,function(g){switch(g.label){case 0:i=n.op;switch(i){case"NonMaxSuppressionV5":return[3,1];case"NonMaxSuppressionV4":return[3,3];case"NonMaxSuppressionV3":return[3,5];case"NonMaxSuppressionV2":return[3,5];case"Where":return[3,7];case"ListDiff":return[3,9]}return[3,10];case 1:return r=hd(n,t,e),a=r.boxes,s=r.scores,o=r.maxOutputSize,l=r.iouThreshold,u=r.scoreThreshold,c=r.softNmsSigma,[4,B.image.nonMaxSuppressionWithScoreAsync(a,s,o,l,u,c)];case 2:return h=g.sent(),[2,[h.selectedIndices,h.selectedScores]];case 3:return d=hd(n,t,e),a=d.boxes,s=d.scores,o=d.maxOutputSize,l=d.iouThreshold,u=d.scoreThreshold,p=A("padToMaxOutputSize",n,t,e),[4,B.image.nonMaxSuppressionPaddedAsync(a,s,o,l,u,p)];case 4:return h=g.sent(),[2,[h.selectedIndices,h.validOutputs]];case 5:return f=hd(n,t,e),a=f.boxes,s=f.scores,o=f.maxOutputSize,l=f.iouThreshold,u=f.scoreThreshold,[4,B.image.nonMaxSuppressionAsync(a,s,o,l,u)];case 6:return[2,[g.sent()]];case 7:return m=B.cast(A("condition",n,t,e),"bool"),[4,B.whereAsync(m)];case 8:return h=[g.sent()],m.dispose(),[2,h];case 9:return[2,B.setdiff1dAsync(A("x",n,t,e),A("y",n,t,e))];case 10:throw TypeError("Node type "+n.op+" is not implemented")}})})};var YW=function(n,t,e){switch(n.op){case"TopKV2":{var i=A("x",n,t,e),r=A("k",n,t,e),a=A("sorted",n,t,e),s=B.topk(i,r,a);return[s.values,s.indices]}case"Unique":{var i=A("x",n,t,e),s=B.unique(i);return[s.values,s.indices]}case"UniqueV2":{var i=A("x",n,t,e),o=A("axis",n,t,e),s=B.unique(i,o);return[s.values,s.indices]}default:throw TypeError("Node type "+n.op+" is not implemented")}};var KW=function(n,t,e){switch(n.op){case"Const":return t[n.name];case"PlaceholderWithDefault":var i=A("default",n,t,e);return[Vt(n.name,t,e)||i];case"Placeholder":return[Vt(n.name,t,e)];case"Identity":case"StopGradient":case"FakeQuantWithMinMaxVars":{var r=A("x",n,t,e);return[Qn(r)]}case"IdentityN":return A("x",n,t,e).map(function(h){return Qn(h)});case"Snapshot":var a=A("x",n,t,e);return[Qn(a)];case"Shape":return[B.tensor1d(A("x",n,t,e).shape,"int32")];case"ShapeN":return A("x",n,t,e).map(function(h){return B.tensor1d(h.shape)});case"Size":return[B.scalar(A("x",n,t,e).size,"int32")];case"Rank":return[B.scalar(A("x",n,t,e).rank,"int32")];case"NoOp":return[B.scalar(1)];case"Print":var s=A("x",n,t,e),o=A("data",n,t,e),l=A("message",n,t,e),u=A("summarize",n,t,e);console.warn("The graph has a tf.print() operation,usually used for debugging, which slows down performance."),console.log(l);for(var c=0;c<o.length;c++)console.log(Array.prototype.slice.call(o[c].dataSync()).slice(0,u));return[s];default:throw TypeError("Node type "+n.op+" is not implemented")}};var jW=function(n,t,e){switch(n.op){case"ResizeBilinear":{var i=A("images",n,t,e),r=A("size",n,t,e),a=A("alignCorners",n,t,e);return[B.image.resizeBilinear(i,[r[0],r[1]],a)]}case"ResizeNearestNeighbor":{var i=A("images",n,t,e),r=A("size",n,t,e),a=A("alignCorners",n,t,e);return[B.image.resizeNearestNeighbor(i,[r[0],r[1]],a)]}case"CropAndResize":{var s=A("image",n,t,e),o=A("boxes",n,t,e),l=A("boxInd",n,t,e),u=A("cropSize",n,t,e),c=A("method",n,t,e),h=A("extrapolationValue",n,t,e);return[B.image.cropAndResize(s,o,l,u,c,h)]}default:throw TypeError("Node type "+n.op+" is not implemented")}};var $W=function(n,t,e){switch(n.op){case"Equal":return[B.equal(A("a",n,t,e),A("b",n,t,e))];case"NotEqual":return[B.notEqual(A("a",n,t,e),A("b",n,t,e))];case"Greater":return[B.greater(A("a",n,t,e),A("b",n,t,e))];case"GreaterEqual":return[B.greaterEqual(A("a",n,t,e),A("b",n,t,e))];case"Less":return[B.less(A("a",n,t,e),A("b",n,t,e))];case"LessEqual":return[B.lessEqual(A("a",n,t,e),A("b",n,t,e))];case"LogicalAnd":return[B.logicalAnd(A("a",n,t,e),A("b",n,t,e))];case"LogicalNot":return[B.logicalNot(A("a",n,t,e))];case"LogicalOr":return[B.logicalOr(A("a",n,t,e),A("b",n,t,e))];case"Select":case"SelectV2":return[B.where(A("condition",n,t,e),A("a",n,t,e),A("b",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};var XW=function(n,t,e){switch(n.op){case"BatchMatMul":case"BatchMatMulV2":case"MatMul":return[B.matMul(A("a",n,t,e),A("b",n,t,e),A("transposeA",n,t,e),A("transposeB",n,t,e))];case"Transpose":return[B.transpose(A("x",n,t,e),A("perm",n,t,e))];case"_FusedMatMul":var i=A("fusedOps",n,t,e),r=i[0],a=i[1],s=r==="biasadd",o=a==="prelu",l=A("numArgs",n,t,e);if(s){if(o&&l!==2)throw new Error("Fused MatMul with BiasAdd and Prelu must have two extra arguments: bias and alpha.");if(!o&&l!==1)throw new Error("Fused MatMul with BiasAdd must have one extra argument: bias.")}var u=A("args",n,t,e),c=u[0],h=u[1];return[B.fused.matMul({a:A("a",n,t,e),b:A("b",n,t,e),transposeA:A("transposeA",n,t,e),transposeB:A("transposeB",n,t,e),bias:c,activation:a,preluActivationWeights:h})];default:throw TypeError("Node type "+n.op+" is not implemented")}};var JW=function(n,t,e){switch(n.op){case"FusedBatchNorm":case"FusedBatchNormV2":return[B.batchNorm(A("x",n,t,e),A("mean",n,t,e),A("variance",n,t,e),A("offset",n,t,e),A("scale",n,t,e),A("epsilon",n,t,e))];case"FusedBatchNormV3":return[B.batchNorm(A("x",n,t,e),A("mean",n,t,e),A("variance",n,t,e),A("offset",n,t,e),A("scale",n,t,e),A("epsilon",n,t,e))];case"LRN":return[B.localResponseNormalization(A("x",n,t,e),A("radius",n,t,e),A("bias",n,t,e),A("alpha",n,t,e),A("beta",n,t,e))];case"Softmax":return[B.softmax(A("x",n,t,e))];case"LogSoftmax":return[B.logSoftmax(A("x",n,t,e))];case"SparseToDense":return[B.sparseToDense(A("sparseIndices",n,t,e),A("outputShape",n,t,e),A("sparseValues",n,t,e),A("defaultValue",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};var ZW=function(n,t,e){switch(n.op){case"Max":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.max(A("x",n,t,e),i,r)]}case"Mean":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.mean(A("x",n,t,e),i,r)]}case"Min":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.min(A("x",n,t,e),i,r)]}case"Sum":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.sum(A("x",n,t,e),i,r)]}case"All":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.all(A("x",n,t,e),i,r)]}case"Any":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.any(A("x",n,t,e),i,r)]}case"ArgMax":{var i=A("axis",n,t,e);return[B.argMax(A("x",n,t,e),i)]}case"ArgMin":{var i=A("axis",n,t,e);return[B.argMin(A("x",n,t,e),i)]}case"Prod":{var i=A("axis",n,t,e),r=A("keepDims",n,t,e);return[B.prod(A("x",n,t,e),i,r)]}case"Cumsum":{var i=A("axis",n,t,e),a=A("exclusive",n,t,e),s=A("reverse",n,t,e);return[B.cumsum(A("x",n,t,e),i,a,s)]}default:throw TypeError("Node type "+n.op+" is not implemented")}};var QW=function(n,t,e){switch(n.op){case"ConcatV2":case"Concat":{var i=A("n",n,t,e),r=A("axis",n,t,e),a=A("tensors",n,t,e);return a=a.slice(0,i),[B.concat(a,r)]}case"GatherV2":case"Gather":{var r=A("axis",n,t,e),s=A("x",n,t,e),o=A("indices",n,t,e);return[B.gather(s,B.cast(o,"int32"),r)]}case"ReverseV2":case"Reverse":{var r=A("axis",n,t,e),s=A("x",n,t,e);return[B.reverse(s,r)]}case"Slice":{var l=A("begin",n,t,e),u=A("size",n,t,e);return[B.slice(A("x",n,t,e),l,u)]}case"StridedSlice":{var l=A("begin",n,t,e),c=A("end",n,t,e),h=A("strides",n,t,e),d=A("beginMask",n,t,e),p=A("endMask",n,t,e),f=A("ellipsisMask",n,t,e),m=A("newAxisMask",n,t,e),g=A("shrinkAxisMask",n,t,e),v=A("x",n,t,e);return[B.stridedSlice(v,l,c,h,d,p,f,m,g)]}case"Pack":return B.tidy(function(){var D=A("axis",n,t,e),k=A("tensors",n,t,e),W=k[0].shape,F=B.squeeze(k[0]).shape,P=k.map(function(H){var _=B.util.arraysEqual(H.shape,W);if(!_&&!B.util.arraysEqual(B.squeeze(H).shape,F))throw new Error("the input tensors shape does not match");return _?H:B.reshape(H,W)});return[B.stack(P,D)]});case"Unpack":{var r=A("axis",n,t,e),v=A("tensor",n,t,e);return B.unstack(v,r)}case"Tile":{var b=A("reps",n,t,e);return[B.tile(A("x",n,t,e),b)]}case"Split":case"SplitV":{var r=A("axis",n,t,e),w=A("numOrSizeSplits",n,t,e),v=A("x",n,t,e);return B.split(v,w,r)}case"ScatterNd":{var o=A("indices",n,t,e),S=A("values",n,t,e),L=A("shape",n,t,e);return[B.scatterND(o,S,L)]}case"GatherNd":{var x=A("x",n,t,e),o=A("indices",n,t,e);return[B.gatherND(x,o)]}case"SparseToDense":{var o=A("sparseIndices",n,t,e),L=A("outputShape",n,t,e),C=A("sparseValues",n,t,e),R=A("defaultValue",n,t,e);return[B.sparseToDense(o,C,L,C.dtype===R.dtype?R:B.cast(R,C.dtype))]}default:throw TypeError("Node type "+n.op+" is not implemented")}};var eU=function(n,t,e){switch(n.op){case"FFT":return[B.fft(A("x",n,t,e))];case"IFFT":return[B.ifft(A("x",n,t,e))];case"RFFT":return[B.rfft(A("x",n,t,e))];case"IRFFT":return[B.irfft(A("x",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};var tU=function(n,t,e){switch(n.op){case"Cast":return[B.cast(A("x",n,t,e),A("dtype",n,t,e))];case"ExpandDims":{var i=A("axis",n,t,e);return[B.expandDims(A("x",n,t,e),i)]}case"Squeeze":{var i=A("axis",n,t,e);return[B.squeeze(A("x",n,t,e),i)]}case"Reshape":return[B.reshape(A("x",n,t,e),A("shape",n,t,e))];case"PadV2":case"Pad":return[B.pad(A("x",n,t,e),A("padding",n,t,e),A("constantValue",n,t,e))];case"SpaceToBatchND":{var r=A("blockShape",n,t,e),a=A("paddings",n,t,e);return[B.spaceToBatchND(A("x",n,t,e),r,a)]}case"BatchToSpaceND":{var r=A("blockShape",n,t,e),s=A("crops",n,t,e);return[B.batchToSpaceND(A("x",n,t,e),r,s)]}case"DepthToSpace":{var o=A("blockSize",n,t,e),l=A("dataFormat",n,t,e).toUpperCase();return[B.depthToSpace(A("x",n,t,e),o,l)]}case"BroadcastTo":return[B.broadcastTo(A("x",n,t,e),A("shape",n,t,e))];default:throw TypeError("Node type "+n.op+" is not implemented")}};function aw(n,t,e){var i=function(r,a,s){switch(r.category){case"arithmetic":return B.tidy(function(){return DW(r,a,s)});case"basic_math":return B.tidy(function(){return kW(r,a,s)});case"control":return MW(r,a,s);case"convolution":return B.tidy(function(){return HW(r,a,s)});case"creation":return B.tidy(function(){return VW(r,a,s)});case"dynamic":return GW(r,a,s);case"evaluation":return B.tidy(function(){return YW(r,a,s)});case"image":return B.tidy(function(){return jW(r,a,s)});case"graph":return B.tidy(function(){return KW(r,a,s)});case"logical":return B.tidy(function(){return $W(r,a,s)});case"matrices":return B.tidy(function(){return XW(r,a,s)});case"normalization":return B.tidy(function(){return JW(r,a,s)});case"reduction":return B.tidy(function(){return ZW(r,a,s)});case"slice_join":return B.tidy(function(){return QW(r,a,s)});case"spectral":return B.tidy(function(){return eU(r,a,s)});case"transformation":return B.tidy(function(){return tU(r,a,s)});case"custom":var o=Qb(r.op);if(o&&o.customExecutor)return o.customExecutor(new EW(r,a,s));throw TypeError("Custom op "+r.op+" is not registered.");default:throw TypeError("Unknown op '"+r.op+"'. File an issue at https://github.com/tensorflow/tfjs/issues so we can add it, or register a custom execution with tf.registerOp()")}}(n,t,e);return i instanceof Promise?i.then(function(r){return[].concat(r)}):[].concat(i)}var sw=function(){function n(t,e,i,r){t===void 0&&(t={}),e===void 0&&(e={}),i===void 0&&(i={}),r===void 0&&(r={}),this.weightMap=t,this.tensorArrayMap=e,this.tensorListMap=i,this.functionMap=r,this.rootContext={id:0,frameName:"",iterationId:0},this.contexts=[this.rootContext],this.lastId=0,this.generateCurrentContextIds()}return n.prototype.newFrame=function(t,e){return{id:t,frameName:e,iterationId:0}},Object.defineProperty(n.prototype,"currentContext",{get:function(){return this.contexts},set:function(t){this.contexts!==t&&(this.contexts=t,this.generateCurrentContextIds())},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"currentContextId",{get:function(){return this._currentContextIds[0]},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"currentContextIds",{get:function(){return this._currentContextIds},enumerable:!0,configurable:!0}),n.prototype.generateCurrentContextIds=function(){for(var t=[],e=0;e<this.contexts.length-1;e++){var i=this.contexts.slice(0,this.contexts.length-e);t.push(this.contextIdforContexts(i))}t.push(""),this._currentContextIds=t},n.prototype.contextIdforContexts=function(t){return t?t.map(function(e){return e.id===0&&e.iterationId===0?"":e.frameName+"-"+e.iterationId}).join("/"):""},n.prototype.enterFrame=function(t){this.contexts&&(this.lastId++,this.contexts=this.contexts.slice(),this.contexts.push(this.newFrame(this.lastId,t)),this._currentContextIds.unshift(this.contextIdforContexts(this.contexts)))},n.prototype.exitFrame=function(){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")},n.prototype.nextIteration=function(){if(this.contexts&&this.contexts.length>0){this.contexts=this.contexts.slice(),this.lastId++;var t=Object.assign({},this.contexts[this.contexts.length-1]);t.iterationId+=1,t.id=this.lastId,this.contexts.splice(-1,1,t),this._currentContextIds.splice(0,1,this.contextIdforContexts(this.contexts))}else throw new Error("Cannot increase frame iteration, the context is empty")},n.prototype.getWeight=function(t){return this.weightMap[t]},n.prototype.addTensorArray=function(t){this.tensorArrayMap[t.id]=t},n.prototype.getTensorArray=function(t){return this.tensorArrayMap[t]},n.prototype.addTensorList=function(t){this.tensorListMap[t.id]=t},n.prototype.getTensorList=function(t){return this.tensorListMap[t]},n.prototype.dispose=function(t){for(var e in this.tensorArrayMap)this.tensorArrayMap[e].clearAndClose(t);for(var e in this.tensorListMap)this.tensorListMap[e].clearAndClose(t)},n}();function lw(n,t,e,i){var r=new Set,a=[],s=null,o=null,l=new Set,u=Object.keys(n).map(function(p){return $t(p)[0]}),c=[];i!=null&&(c=i.map(function(p){return $t(p.name)[0]}));for(var h=t.slice();h.length>0;){var d=h.pop();if((ow(d)||nU(d))&&(s==null&&(s=d,o=s.children.map(function(p){return p.name}).filter(function(p){return r.has(p)}))),r.add(d.name),e[d.name]!=null)continue;if(u.indexOf(d.name)!==-1)continue;if(c.indexOf(d.name)!==-1)continue;if(d.inputs.length===0){a.push(d.name);continue}d.inputs.forEach(function(p){if(l.has(p.name))return;l.add(p.name),h.push(p)})}return{inputs:n,outputs:t,usedNodes:r,missingInputs:a,dynamicNode:s,syncInputs:o}}function iU(n,t,e){var i=e.usedNodes,r=e.inputs,a=[],s=Object.keys(r).map(function(h){return $t(h)[0]}).map(function(h){return n.nodes[h]}),o=n.initNodes;s.forEach(function(h){i.has(h.name)&&a.push(h)}),n.weights.forEach(function(h){i.has(h.name)&&a.push(h)}),o!=null&&o.forEach(function(h){i.has(h.name)&&a.push(h)});for(var l=new Set,u=[];a.length>0;){var c=a.pop();l.add(c.name),t[c.name]||u.push(c),c.children.forEach(function(h){!l.has(h.name)&&i.has(h.name)&&h.inputs.every(function(d){return l.has(d.name)})&&a.push(h)})}return u}var rU=["Switch","Merge","Enter","Exit","NextIteration","StatelessIf","StatelessWhile","if","While"],aU=["NonMaxSuppressionV2","NonMaxSuppressionV3","NonMaxSuppressionV5","Where"];function ow(n){return rU.indexOf(n.op)>=0}function nU(n){return aU.indexOf(n.op)>=0}var uw=function(){function n(t,e){var i=this;this.graph=t,this.parent=e,this.compiledMap=new Map,this._weightMap={},this.SEPERATOR=",",this._functions={},this._functionExecutorMap={},this._outputs=t.outputs,this._inputs=t.inputs,this._initNodes=t.initNodes,this._signature=t.signature,this._functions=t.functions,t.functions!=null&&Object.keys(t.functions).forEach(function(r){i._functionExecutorMap[r]=new n(t.functions[r],i)})}return Object.defineProperty(n.prototype,"weightIds",{get:function(){return this.parent?this.parent.weightIds:this._weightIds},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"functionExecutorMap",{get:function(){return this.parent?this.parent.functionExecutorMap:this._functionExecutorMap},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"weightMap",{get:function(){return this.parent?this.parent.weightMap:this._weightMap},set:function(t){var e=Object.keys(t).map(function(i){return t[i].map(function(r){return r.id})});this._weightIds=[].concat.apply([],e),this._weightMap=t},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"inputs",{get:function(){return this._inputs.map(function(t){return{name:t.name,shape:t.attrParams.shape?t.attrParams.shape.value:void 0,dtype:t.attrParams.dtype?t.attrParams.dtype.value:void 0}})},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"outputs",{get:function(){return this._outputs.map(function(t){return{name:t.name,shape:t.attrParams.shape?t.attrParams.shape.value:void 0,dtype:t.attrParams.dtype?t.attrParams.dtype.value:void 0}})},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"inputNodes",{get:function(){return this._inputs.map(function(t){return t.signatureKey||t.name})},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"outputNodes",{get:function(){return this._outputs.map(function(t){var e=t.signatureKey||t.name;return t.defaultOutput?e+":"+t.defaultOutput:e})},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"functions",{get:function(){var t=this;return Object.keys(this._functions).reduce(function(e,i){return e[i]=t._functions[i].signature,e},{})},enumerable:!0,configurable:!0}),n.prototype.getCompilationKey=function(t,e){var i=t.map(function(a){return a.name}).sort(),r=e.map(function(a){return a.name}).sort();return i.join(this.SEPERATOR)+"--"+r.join(this.SEPERATOR)},n.prototype.compile=function(t,e){var i=lw(t,e,this.weightMap,this._initNodes),r=i.missingInputs,a=i.dynamicNode,s=i.syncInputs;if(a!=null)throw new Error("This execution contains the node '"+a.name+"', which has "+("the dynamic op '"+a.op+"'. Please use ")+"model.executeAsync() instead. Alternatively, to avoid the "+("dynamic ops, specify the inputs ["+s+"]"));if(r.length>0){var o=e.map(function(u){return u.name}),l=Object.keys(t);throw new Error("Cannot compute the outputs ["+o+"] from the provided inputs "+("["+l+"]. Missing the following inputs: ["+r+"]"))}return iU(this.graph,this.weightMap,i)},n.prototype.execute=function(t,e){var i=this;t=this.mapInputs(t);var r=Object.keys(t).sort();this.checkInputs(t),this.checkInputShapeAndType(t),e=this.mapOutputs(e),this.checkOutputs(e);var a=r.map(function(d){return i.graph.nodes[$t(d)[0]]}),s=e.map(function(d){return $t(d)[0]}),o=s.map(function(d){return i.graph.nodes[d]});o.length===0&&(o=this._outputs);var l=this.getCompilationKey(a,o),u=this.compiledMap.get(l);u==null&&(u=this.compile(t,o),this.compiledMap.set(l,u));var c={},h={};return B.tidy(function(){var d=new sw(i.weightMap,c,h,i.functionExecutorMap),p=Jb({},i.weightMap);Object.keys(t).forEach(function(w){var S=$t(w),L=S[0],x=S[1],C=[];C[x]=t[w],p[L]=C});for(var f=i.getFrozenTensorIds(p),m={},g=0;g<u.length;g++){var v=u[g];if(!p[v.name]){var b=aw(v,p,d);if(b instanceof Promise)throw new Error("The execution of the op '"+v.op+"' returned a promise. Please use model.executeAsync() instead.");p[v.name]=b,i.checkTensorForDisposal(v.name,v,p,d,f,s,m)}}return i.parent==null&&d.dispose(f),e.map(function(w){return Vt(w,p,d)})})},n.prototype.getFrozenTensorIds=function(t){var e=[].concat.apply([],Object.keys(t).map(function(i){return t[i]}).map(function(i){return i.map(function(r){return r.id})}));return new Set(e)},n.prototype.checkTensorForDisposal=function(t,e,i,r,a,s,o){if(e.category==="control"||s.indexOf(t)!==-1)return;i[t].forEach(function(l){l!=null&&(o[l.id]=(o[l.id]||0)+e.children.length)}),e.inputs.forEach(function(l){if(l.category!=="control"){var u=JF(l.name,i,r);u!=null&&u.forEach(function(c){if(c&&!a.has(c.id)){var h=o[c.id];h===1?(c.dispose(),delete o[c.id]):h!=null&&o[c.id]--}})}})},n.prototype.executeAsync=function(t,e){return Pn(this,void 0,void 0,function(){return Ln(this,function(i){return[2,this._executeAsync(t,e)]})})},n.prototype._executeAsync=function(t,e,i,r,a){return i===void 0&&(i=!1),r===void 0&&(r={}),a===void 0&&(a={}),Pn(this,void 0,void 0,function(){var s,o,l,u,c,h;return Ln(this,function(d){switch(d.label){case 0:return i||(t=this.mapInputs(t),this.checkInputs(t),this.checkInputShapeAndType(t),e=this.mapOutputs(e),this.checkOutputs(e)),s=new sw(this.weightMap,r,a,this.functionExecutorMap),[4,this.executeWithControlFlow(t,s,e,i)];case 1:return o=d.sent(),l=e.map(function(p){return Vt(p,o,s)}),u=l.map(function(p){return p.id}),c=Object.keys(t).map(function(p){return t[p].id}),h=new Set(u.concat(c,this.weightIds)),Object.keys(o).forEach(function(p){var f=o[p];f.forEach(function(m){m&&!m.isDisposed&&!h.has(m.id)&&m.dispose()})}),this.parent==null&&s.dispose(h),[2,l]}})})},n.prototype.executeFunctionAsync=function(t,e,i){return Pn(this,void 0,void 0,function(){var r,a=this;return Ln(this,function(s){return r=t.reduce(function(o,l,u){return o[a.inputs[u].name]=l,o},{}),[2,this._executeAsync(r,this.outputNodes,!0,e,i)]})})},n.prototype.executeWithControlFlow=function(t,e,i,r){return Pn(this,void 0,void 0,function(){var a,s,o,l,u,c,h,d,p,f,m,g,v,b,w,S,L,x=this;return Ln(this,function(C){switch(C.label){case 0:a=Object.keys(t),s=a.map(function(R){return x.graph.nodes[$t(R)[0]]}),o=i.map(function(R){return $t(R)[0]}),l=o.map(function(R){return x.graph.nodes[R]}),u=lw(t,l,this.weightMap),c=u.usedNodes,h=u.missingInputs,d=u.dynamicNode,p=u.syncInputs,f=s.concat(this.graph.weights).map(function(R){return{node:R,contexts:e.currentContext}}),m=Jb({},this.weightMap),Object.keys(t).forEach(function(R){var D=$t(R),k=D[0],W=D[1],F=[];F[W]=t[R],m[k]=F}),g={},v=this.getFrozenTensorIds(m),b={},C.label=1;case 1:return f.length>0?(w=this.processStack(s,f,e,m,b,v,o,g,c),[4,Promise.all(w)]):[3,3];case 2:return C.sent(),[3,1];case 3:if(d==null&&!r&&console.warn("This model execution did not contain any nodes with control flow or dynamic output shapes. You can use model.execute() instead."),S=l.filter(function(R){return!ow(R)&&!Vt(R.name,m,e)}).map(function(R){return R.name}),S.length>0)throw L="",d!=null&&(L="Alternatively, to avoid the dynamic ops, use model.execute() "+("and specify the inputs ["+p+"]")),new Error("Cannot compute the outputs ["+S+"] from the provided "+("inputs ["+a+"]. Consider providing the following inputs: ")+("["+h+"]. 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l=Zn(o.name,i)[0];if(a[l]||!s.has(o.name))return;o.op==="Merge"?o.inputNames.some(function(u){return!!Vt(u,r,i)})&&(a[l]=!0,e.push({contexts:i.currentContext,node:o})):o.inputNames.every(function(u){return!!Vt(u,r,i)})&&(a[l]=!0,e.push({contexts:i.currentContext,node:o}))})},n.prototype.dispose=function(){var t=this;Object.keys(this.weightMap).forEach(function(e){return t.weightMap[e].forEach(function(i){return i.dispose()})})},n.prototype.checkInputShapeAndType=function(t){var e=this;Object.keys(t).forEach(function(i){var r=t[i],a=$t(i)[0],s=e.graph.nodes[a];if(s.attrParams.shape&&s.attrParams.shape.value){var o=s.attrParams.shape.value,l=o.length===r.shape.length&&r.shape.every(function(u,c){return o[c]===-1||o[c]===u});B.util.assert(l,function(){return"The shape of dict['"+s.name+"'] provided in "+("model.execute(dict) must be ["+o+"], but was ")+("["+r.shape+"]")})}s.attrParams.dtype&&s.attrParams.dtype.value&&B.util.assert(r.dtype===s.attrParams.dtype.value,function(){return"The 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"+("Mismatched at element "+this.count+"."));case Ai.SHORTEST:return[2,{value:null,done:!0}];case Ai.LONGEST:}return this.count++,[2,{value:s,done:!1}]}})})},t.prototype.next=function(){return se(this,void 0,void 0,function(){return oe(this,function(e){return this.currentPromise=this.nextState(this.currentPromise),[2,this.currentPromise]})})},t}(xt),Sw=function(n){Ve(t,n);function t(e,i){var r=n.call(this)||this;return r.upstream=e,r.bufferSize=i,r.buffer=new vw(i),r}return t.prototype.summary=function(){return this.upstream.summary()+" -> Prefetch"},t.prototype.refill=function(){for(;!this.buffer.isFull();){var e=this.upstream.next();this.buffer.push(e)}},t.prototype.next=function(){return this.refill(),this.buffer.shift()},t}(xt),BU=function(n){Ve(t,n);function t(e,i,r){var a=n.call(this,e,i)||this;return a.upstream=e,a.windowSize=i,a.upstreamExhausted=!1,a.random=pw(r||Ne.util.now().toString()),a.lastRead=Promise.resolve({value:null,done:!1}),a}return t.prototype.next=function(){return se(this,void 0,void 0,function(){var e=this;return oe(this,function(i){return this.lastRead=this.lastRead.then(function(){return e.serialNext()}),[2,this.lastRead]})})},t.prototype.randomInt=function(e){return Math.floor(this.random()*e)},t.prototype.chooseIndex=function(){return this.randomInt(this.buffer.length())},t.prototype.serialNext=function(){return se(this,void 0,void 0,function(){var e,i;return oe(this,function(r){switch(r.label){case 0:this.upstreamExhausted||this.refill(),r.label=1;case 1:return this.buffer.isEmpty()?[3,3]:(e=this.chooseIndex(),[4,this.buffer.shuffleExcise(e)]);case 2:if(i=r.sent(),i.done)this.upstreamExhausted=!0;else return this.refill(),[2,i];return[3,1];case 3:return[2,{value:null,done:!0}]}})})},t}(Sw);var ja=function(){function n(){this.size=null}return n.prototype.batch=function(t,e){var i=this;e===void 0&&(e=!0);var r=this;Ne.util.assert(t>0,function(){return`batchSize needs to be positive, but it is
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If your data fits in main memory (for regular JS objects), and/or GPU memory (for `tf.Tensor`s), consider setting "+("bufferSize to the dataset size ("+this.size+" elements)"));var a=this,s=pw(e||Ne.util.now().toString());return Xt(function(){return se(r,void 0,void 0,function(){var o;return oe(this,function(l){switch(l.label){case 0:return o=s.int32(),i&&(o+=s.int32()),[4,a.iterator()];case 1:return[2,l.sent().shuffle(t,o.toString())]}})})},this.size)},n.prototype.take=function(t){var e=this,i=this,r;return this.size!=null&&this.size>t?r=t:this.size!=null&&this.size<=t?r=this.size:r=null,Xt(function(){return se(e,void 0,void 0,function(){return oe(this,function(a){switch(a.label){case 0:return[4,i.iterator()];case 1:return[2,a.sent().take(t)]}})})},r)},n.prototype.toArray=function(){return se(this,void 0,void 0,function(){return oe(this,function(t){switch(t.label){case 0:if(this.size===Infinity)throw new Error("Can not convert infinite data stream to array.");return[4,this.iterator()];case 1:return[2,t.sent().toArray()]}})})},n.prototype.toArrayForTest=function(){return se(this,void 0,void 0,function(){return oe(this,function(t){switch(t.label){case 0:if(this.size===Infinity)throw new Error("Can not convert infinite data stream to array.");return[4,this.iterator()];case 1:return[2,t.sent().toArrayForTest()]}})})},n.MAX_BUFFER_SIZE=1e4,n}();function Xt(n,t){return t===void 0&&(t=null),new(function(e){Ve(i,e);function i(){var r=e!==null&&e.apply(this,arguments)||this;return r.size=t,r}return i.prototype.iterator=function(){return se(this,void 0,void 0,function(){return oe(this,function(r){return[2,n()]})})},i}(ja))}function PU(n){var t=this;return Xt(function(){return se(t,void 0,void 0,function(){return oe(this,function(e){return[2,yw(n)]})})},n.length)}function _U(n){var t=this;if(!Xr(n))throw new Error("The argument to zip() must be an object or array.");var e;if(Array.isArray(n))for(var i=0;i<n.length;i++)e=e==null?n[i].size:Math.min(e,n[i].size);else if(n instanceof Object)for(var r in n)e=e==null?n[r].size:Math.min(e,n[r].size);return Xt(function(){return se(t,void 0,void 0,function(){var a;return oe(this,function(s){switch(s.label){case 0:return[4,gw(n,function(o){if(o instanceof ja)return{value:o.iterator(),recurse:!1};if(Xr(o))return{value:null,recurse:!0};throw new Error("Leaves of the structure passed to zip() must be Datasets, not primitives.")})];case 1:return a=s.sent(),[2,CU(a,Ai.SHORTEST)]}})})},e)}function zU(n){if(n===null)return null;var t=n[0];if(wU(t)){var e=MU(n);return{value:e,recurse:!1}}return{value:null,recurse:!0}}function MU(n){if(n.length===0)throw new Error("Can't make a batch of zero elements.");return n[0]instanceof Ne.Tensor?Ne.stack(n):Ne.tensor(n)}var Lw=function(n){Ve(t,n);function t(e){var i=n.call(this)||this;return i.input=e,i}return t.prototype.iterator=function(){return se(this,void 0,void 0,function(){var e,i,r;return oe(this,function(a){switch(a.label){case 0:return[4,this.input.iterator()];case 1:return e=a.sent(),i=e.decodeUTF8(),r=i.split(`
`).map(function(s){return s.endsWith("\r")&&(s=s.slice(0,-1)),s}),[2,r]}})})},t}(ja);var Eo='"',$a=Symbol("out"),Iw=Symbol("field"),Do=Symbol("quote"),md=Symbol("quoteafterquote"),Aw=Symbol("quoteinquote"),Tw=function(n){Ve(t,n);function t(e,i){var r=n.call(this)||this;return r.input=e,r.hasHeader=!0,r.fullColumnNames=null,r.columnNamesValidated=!1,r.columnConfigs=null,r.configuredColumnsOnly=!1,r.delimiter=",",r.delimWhitespace=!1,r.base=new Lw(e),i||(i={}),r.hasHeader=!(i.hasHeader===!1),r.fullColumnNames=i.columnNames,r.columnConfigs=i.columnConfigs,r.configuredColumnsOnly=i.configuredColumnsOnly,i.delimWhitespace?(Ne.util.assert(i.delimiter==null,function(){return"Delimiter should not be provided when delimWhitespace is true."}),r.delimWhitespace=!0,r.delimiter=" "):r.delimiter=i.delimiter?i.delimiter:",",r}return t.prototype.columnNames=function(){return se(this,void 0,void 0,function(){return oe(this,function(e){switch(e.label){case 0:return this.columnNamesValidated?[3,2]:[4,this.setColumnNames()];case 1:e.sent(),e.label=2;case 2:return[2,this.configuredColumnsOnly?Object.keys(this.columnConfigs):this.fullColumnNames]}})})},t.prototype.setColumnNames=function(){return se(this,void 0,void 0,function(){var e,i,r,a,s,o,l,u=this;return oe(this,function(c){switch(c.label){case 0:return[4,this.maybeReadHeaderLine()];case 1:if(e=c.sent(),!this.fullColumnNames&&!e)throw new Error("Column names must be provided if there is no header line.");if(this.fullColumnNames&&e&&Ne.util.assert(e.length===this.fullColumnNames.length,function(){return"The length of provided columnNames ("+u.fullColumnNames.length.toString()+") does not match the length of the header line read from file ("+e.length.toString()+")."}),this.fullColumnNames||(this.fullColumnNames=e),i=this.fullColumnNames.reduce(function(h,d){return h[d]=h[d]+1||1,h},{}),r=Object.keys(i).filter(function(h){return i[h]>1}),Ne.util.assert(r.length===0,function(){return"Duplicate column names found: "+r.toString()}),this.columnConfigs){for(a=0,s=Object.keys(this.columnConfigs);a<s.length;a++)if(o=s[a],l=this.fullColumnNames.indexOf(o),l===-1)throw new Error('The key "'+o+'" provided in columnConfigs does not match any of the column names ('+this.fullColumnNames.toString()+").")}return this.columnNamesValidated=!0,[2]}})})},t.prototype.maybeReadHeaderLine=function(){return se(this,void 0,void 0,function(){var e,i,r,a;return oe(this,function(s){switch(s.label){case 0:return this.hasHeader?[4,this.base.iterator()]:[3,3];case 1:return e=s.sent(),[4,e.next()];case 2:if(i=s.sent(),i.done)throw new Error("No data was found for CSV parsing.");return r=i.value,a=this.parseRow(r,!1),[2,a];case 3:return[2,null]}})})},t.prototype.iterator=function(){return se(this,void 0,void 0,function(){var e,i=this;return oe(this,function(r){switch(r.label){case 0:return this.columnNamesValidated?[3,2]:[4,this.setColumnNames()];case 1:r.sent(),r.label=2;case 2:return[4,this.base.iterator()];case 3:return e=r.sent(),this.hasHeader&&(e=e.skip(1)),[2,e.map(function(a){return i.makeDataElement(a)})]}})})},t.prototype.makeDataElement=function(e){for(var i=this.parseRow(e),r={},a={},s=0;s<this.fullColumnNames.length;s++){var o=this.fullColumnNames[s],l=this.columnConfigs?this.columnConfigs[o]:null;if(this.configuredColumnsOnly&&!l)continue;var u=i[s],c=null;if(u==="")if(l&&l.default!==void 0)c=l.default;else{if(l&&(l.required||l.isLabel))throw new Error("Required column "+o+" is empty in this line: "+e);c=void 0}else{var h=Number(u);if(isNaN(h))l&&l.dtype==="bool"?c=this.getBoolean(u):c=u;else if(!l||!l.dtype)c=h;else switch(l.dtype){case"float32":c=h;break;case"int32":c=Math.floor(h);break;case"bool":c=this.getBoolean(u);break;default:c=h}}l&&l.isLabel?a[o]=c:r[o]=c}return Object.keys(a).length===0?r:{xs:r,ys:a}},t.prototype.getBoolean=function(e){return e==="1"||e.toLowerCase()==="true"?1:0},t.prototype.parseRow=function(e,i){i===void 0&&(i=!0);for(var r=[],a=0,s=e.length,o=$a,l=0;l<s;l++)switch(o){case $a:switch(e.charAt(l)){case Eo:a=l+1,o=Do;break;case this.delimiter:if(a=l+1,this.delimiter===" "&&this.delimWhitespace)break;r.push(""),o=$a;break;default:o=Iw,a=l;break}break;case Iw:switch(e.charAt(l)){case this.delimiter:r.push(e.substring(a,l)),o=$a,a=l+1;break}break;case Do:switch(e.charAt(l)){case Eo:o=md;break}break;case md:switch(e.charAt(l)){case this.delimiter:r.push(e.substring(a,l-1)),o=$a,a=l+1;break;case Eo:o=Do;break;default:o=Aw;break}break;case Aw:switch(e.charAt(l)){case Eo:o=Do;break}break}if(o===md?r.push(e.substring(a,s-1)):r.push(e.substring(a)),i&&r.length!==this.fullColumnNames.length)throw new Error("Invalid row in csv file. Should have "+this.fullColumnNames.length+" elements in a row, but got "+r);return r},t}(ja);var HU=function(n){Ve(t,n);function t(e){var i=n.call(this)||this;i.microphoneConfig=e,i.isClosed=!1,i.fftSize=e.fftSize||1024;var r=Math.log2(i.fftSize);if(i.fftSize<0||r<4||r>14||!Number.isInteger(r))throw new Error("Invalid fftSize: it must be a power of 2 between "+("2 to 4 and 2 to 14, but got "+i.fftSize));if(i.numFrames=e.numFramesPerSpectrogram||43,i.sampleRateHz=e.sampleRateHz,i.columnTruncateLength=e.columnTruncateLength||i.fftSize,i.audioTrackConstraints=e.audioTrackConstraints,i.smoothingTimeConstant=e.smoothingTimeConstant||0,i.includeSpectrogram=!(e.includeSpectrogram===!1),i.includeWaveform=e.includeWaveform===!0,!i.includeSpectrogram&&!i.includeWaveform)throw new Error("Both includeSpectrogram and includeWaveform are false. At least one type of data should be returned.");return i}return t.prototype.summary=function(){return"microphone"},t.create=function(e){return e===void 0&&(e={}),se(this,void 0,void 0,function(){var i;return oe(this,function(r){switch(r.label){case 0:if(Ne.env().get("IS_NODE"))throw new Error("microphone API is only supported in browser environment.");return i=new t(e),[4,i.start()];case 1:return r.sent(),[2,i]}})})},t.prototype.start=function(){return se(this,void 0,void 0,function(){var e,i,r,a;return oe(this,function(s){switch(s.label){case 0:return s.trys.push([0,2,,3]),e=this,[4,navigator.mediaDevices.getUserMedia({audio:this.audioTrackConstraints==null?!0:this.audioTrackConstraints,video:!1})];case 1:return e.stream=s.sent(),[3,3];case 2:throw i=s.sent(),new Error("Error thrown while initializing video stream: "+i.message);case 3:if(!this.stream)throw new Error("Could not obtain audio from microphone.");if(r=window.AudioContext||window.webkitAudioContext,this.audioContext=new r,!this.sampleRateHz)this.sampleRateHz=this.audioContext.sampleRate;else if(this.audioContext.sampleRate!==this.sampleRateHz)throw new Error("Mismatch in sampling rate: "+("Expected: "+this.sampleRateHz+"; ")+("Actual: "+this.audioContext.sampleRate));return a=this.audioContext.createMediaStreamSource(this.stream),this.analyser=this.audioContext.createAnalyser(),this.analyser.fftSize=this.fftSize*2,this.analyser.smoothingTimeConstant=this.smoothingTimeConstant,a.connect(this.analyser),this.freqData=new Float32Array(this.fftSize),this.timeData=new Float32Array(this.fftSize),[2]}})})},t.prototype.next=function(){return se(this,void 0,void 0,function(){var e,i,r,a,s;return oe(this,function(o){switch(o.label){case 0:return this.isClosed?[2,{value:null,done:!0}]:[4,this.getAudioData()];case 1:return r=o.sent(),this.includeSpectrogram&&(a=this.flattenQueue(r.freqDataQueue),e=this.getTensorFromAudioDataArray(a,[this.numFrames,this.columnTruncateLength,1])),this.includeWaveform&&(s=this.flattenQueue(r.timeDataQueue),i=this.getTensorFromAudioDataArray(s,[this.numFrames*this.fftSize,1])),[2,{value:{spectrogram:e,waveform:i},done:!1}]}})})},t.prototype.capture=function(){return se(this,void 0,void 0,function(){return oe(this,function(e){switch(e.label){case 0:return[4,this.next()];case 1:return[2,e.sent().value]}})})},t.prototype.getAudioData=function(){return se(this,void 0,void 0,function(){var e,i,r,a=this;return oe(this,function(s){return e=[],i=[],r=0,[2,new Promise(function(o){var l=setInterval(function(){a.includeSpectrogram&&(a.analyser.getFloatFrequencyData(a.freqData),a.freqData[0]===-Infinity&&o({freqDataQueue:e,timeDataQueue:i}),e.push(a.freqData.slice(0,a.columnTruncateLength))),a.includeWaveform&&(a.analyser.getFloatTimeDomainData(a.timeData),i.push(a.timeData.slice())),++r===a.numFrames&&(clearInterval(l),o({freqDataQueue:e,timeDataQueue:i}))},a.fftSize/a.sampleRateHz*1e3)})]})})},t.prototype.stop=function(){this.isClosed||(this.isClosed=!0,this.analyser.disconnect(),this.audioContext.close(),this.stream!=null&&this.stream.getTracks().length>0&&this.stream.getTracks()[0].stop())},t.prototype.toArray=function(){throw new Error("Can not convert infinite audio stream to array.")},t.prototype.getSampleRate=function(){return this.sampleRateHz},t.prototype.flattenQueue=function(e){var i=e[0].length,r=new Float32Array(e.length*i);return e.forEach(function(a,s){return r.set(a,s*i)}),r},t.prototype.getTensorFromAudioDataArray=function(e,i){var r=new Float32Array(Ne.util.sizeFromShape(i));return r.set(e,r.length-e.length),Ne.tensor(r,i)},t}(xt);var VU=function(n){Ve(t,n);function t(e,i){var r=n.call(this)||this;if(r.webcamVideoElement=e,r.webcamConfig=i,r.isClosed=!0,r.resize=!1,r.needToResize())if(r.resize=!0,r.cropSize=[r.webcamConfig.resizeHeight,r.webcamConfig.resizeWidth],r.cropBoxInd=Ne.tensor1d([0],"int32"),r.webcamConfig.centerCrop){var a=r.webcamConfig.resizeWidth*1/r.webcamVideoElement.width,s=r.webcamConfig.resizeHeight*1/r.webcamVideoElement.height,o=(1-a)/2,l=(1-s)/2,u=o+a,c=s+l;r.cropBox=Ne.tensor2d([l,o,c,u],[1,4])}else r.cropBox=Ne.tensor2d([0,0,1,1],[1,4]);return r}return t.prototype.summary=function(){return"webcam"},t.create=function(e,i){return i===void 0&&(i={}),se(this,void 0,void 0,function(){var r;return oe(this,function(a){switch(a.label){case 0:if(Ne.env().get("IS_NODE"))throw new Error("tf.data.webcam is only supported in browser environment.");if(!e){if(e=document.createElement("video"),!i.resizeWidth||!i.resizeHeight)throw new Error("Please provide webcam video element, or resizeWidth and resizeHeight to create a hidden video element.");e.width=i.resizeWidth,e.height=i.resizeHeight}return r=new t(e,i),[4,r.start()];case 1:return a.sent(),[2,r]}})})},t.prototype.start=function(){return se(this,void 0,void 0,function(){var e,i,r=this;return oe(this,function(a){switch(a.label){case 0:this.webcamConfig.facingMode&&Ne.util.assert(this.webcamConfig.facingMode==="user"||this.webcamConfig.facingMode==="environment",function(){return"Invalid webcam facing mode: "+r.webcamConfig.facingMode+". 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============================
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fB(a,e.shape,e.dtype,i,r)},t.prototype.min=function(e,i){ae(e,"min"),T.backend_util.assertAxesAreInnerMostDims("min",i,e.rank);for(var r=T.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=T.zeros(a,e.dtype),l=T.util.sizeFromShape(s),u=this.readSync(o.dataId),c=this.readSync(e.dataId),h=0;h<u.length;++h){for(var d=h*l,p=c[d],f=0;f<l;++f){var m=c[d+f];m<p&&(p=m)}u[h]=p}return o},t.prototype.minimum=function(e,i){return ae([e,i],"minimum"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){return Math.min(r,a)})},t.prototype.mod=function(e,i){return ae([e,i],"mod"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){var s=r%a;return r<0&&a<0||r>=0&&a>=0?s:(s+a)%a})},t.prototype.maximum=function(e,i){return ae([e,i],"maximum"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){return Math.max(r,a)})},t.prototype.all=function(e,i){ae(e,"all"),T.backend_util.assertAxesAreInnerMostDims("all",i,e.rank);for(var r=T.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=T.zeros(a,e.dtype),l=T.util.sizeFromShape(s),u=this.readSync(o.dataId),c=this.readSync(e.dataId),h=0;h<u.length;++h){for(var d=h*l,p=c[d],f=0;f<l;++f){var m=c[d+f];p=p&&m}u[h]=p}return o},t.prototype.any=function(e,i){ae(e,"any"),T.backend_util.assertAxesAreInnerMostDims("any",i,e.rank);for(var r=T.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=T.zeros(a,e.dtype),l=T.util.sizeFromShape(s),u=this.readSync(o.dataId),c=this.readSync(e.dataId),h=0;h<u.length;++h){for(var d=h*l,p=c[d],f=0;f<l;++f){var m=c[d+f];p=p||m}u[h]=p}return o},t.prototype.squaredDifference=function(e,i){return ae([e,i],"squaredDifference"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){var s=r-a;return s*s})},t.prototype.linear=function(e){return e},t.prototype.relu=function(e){ae(e,"relu");for(var i=T.zeros(e.shape,e.dtype),r=this.readSync(i.dataId),a=this.readSync(e.dataId),s=0;s<a.length;++s)r[s]=Math.max(0,a[s]);return i},t.prototype.relu6=function(e){ae(e,"relu");for(var i=T.zeros(e.shape,e.dtype),r=this.readSync(i.dataId),a=this.readSync(e.dataId),s=0;s<a.length;++s)r[s]=Math.min(Math.max(0,a[s]),6);return i},t.prototype.prelu=function(e,i){return ae([e,i],"prelu"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){return r<0?a*r:r})},t.prototype.eluDer=function(e,i){ae([e,i],"eluDer");for(var r=new Float32Array(i.size),a=this.readSync(i.dataId),s=this.readSync(e.dataId),o=0;o<a.length;++o){var l=a[o];l>=1?r[o]=s[o]:r[o]=s[o]*(l+1)}return this.makeOutput(r,i.shape,"float32")},t.prototype.atan2=function(e,i){return ae([e,i],"atan2"),this.broadcastedBinaryOp(e,i,e.dtype,function(r,a){return Math.atan2(r,a)})},t.prototype.fusedConv2d=function(e){var i=e.input,r=e.filter,a=e.convInfo,s=e.bias,o=e.activation,l=e.preluActivationWeights,u=this.conv2d(i,r,a);return s&&(u=T.add(u,s)),o&&(u=Id(this,u,o,l)),u},t.prototype.conv2d=function(e,i,r){ae([e,i],"conv2d");for(var a=r.filterHeight,s=r.filterWidth,o=r.dilationHeight,l=r.dilationWidth,u=r.padInfo.left,c=r.padInfo.top,h=r.dataFormat==="channelsLast",d=T.buffer(r.outShape,e.dtype),p=e.strides[0],f=h?e.strides[1]:e.strides[2],m=h?e.strides[2]:1,g=h?1:e.strides[1],v=d.strides[0],b=h?d.strides[1]:d.strides[2],w=h?d.strides[2]:1,S=h?1:d.strides[1],L=this.readSync(e.dataId),x=this.readSync(i.dataId),C=d.values,R=0;R<r.batchSize;++R)for(var D=R*p,k=R*v,W=0;W<r.outHeight;++W)for(var F=k+W*b,P=W*r.strideHeight-c,H=0;H<a;H++){var _=P+H*o;if(_<0||_>=r.inHeight)continue;for(var K=H*i.strides[0],j=D+_*f,q=0;q<r.outWidth;++q)for(var G=F+q*w,Z=q*r.strideWidth-u,X=0;X<s;X++){var ee=Z+X*l;if(ee<0||ee>=r.inWidth)continue;for(var ne=K+X*i.strides[1],ie=j+ee*m,te=ne,re=0;re<r.inChannels;++re){for(var le=L[ie+re*g],he=0;he<r.outChannels;++he)C[G+he*S]+=le*x[te+he];te+=r.outChannels}}}return d.toTensor()},t.prototype.conv3d=function(e,i,r){for(var a=r.filterDepth,s=r.filterHeight,o=r.filterWidth,l=r.dilationDepth,u=r.dilationHeight,c=r.dilationWidth,h=r.padInfo.front,d=r.padInfo.left,p=r.padInfo.top,f=T.buffer(r.outShape,e.dtype),m=this.readSync(e.dataId),g=this.readSync(i.dataId),v=f.values,b=0;b<r.batchSize;++b)for(var w=b*e.strides[0],S=b*f.strides[0],L=0;L<r.outDepth;++L)for(var x=S+L*f.strides[1],C=L*r.strideDepth-h,R=0;R<a;R++){var D=C+R*l;if(D<0||D>=r.inDepth)continue;for(var k=R*i.strides[0],W=w+D*e.strides[1],F=0;F<r.outHeight;++F)for(var P=x+F*f.strides[2],H=F*r.strideHeight-p,_=0;_<s;_++){var K=H+_*u;if(K<0||K>=r.inHeight)continue;for(var j=k+_*i.strides[1],q=W+K*e.strides[2],G=0;G<r.outWidth;++G)for(var Z=P+G*r.outChannels,X=G*r.strideWidth-d,ee=0;ee<o;ee++){var ne=X+ee*c;if(ne<0||ne>=r.inWidth)continue;for(var ie=j+ee*i.strides[2],te=q+ne*r.inChannels,re=ie,le=0;le<r.inChannels;++le){for(var he=m[te+le],ye=0;ye<r.outChannels;++ye)v[Z+ye]+=he*g[re+ye];re+=r.outChannels}}}}return f.toTensor()},t.prototype.conv2dDerInput=function(e,i,r){ae([e,i],"conv2dDerInput");for(var a=T.buffer(r.inShape,"float32"),s=a.values,o=this.readSync(e.dataId),l=this.readSync(i.dataId),u=i.strides,c=u[0],h=u[1],d=u[2],p=r.batchSize,f=r.filterHeight,m=r.filterWidth,g=r.inChannels,v=r.inHeight,b=r.inWidth,w=r.outChannels,S=r.outHeight,L=r.outWidth,x=r.strideHeight,C=r.strideWidth,R=r.dataFormat,D=f-1-r.padInfo.top,k=m-1-r.padInfo.left,W=R==="channelsLast",F=a.strides[0],P=W?a.strides[1]:a.strides[2],H=W?a.strides[2]:1,_=W?1:a.strides[1],K=e.strides[0],j=W?e.strides[1]:e.strides[2],q=W?e.strides[2]:1,G=W?1:e.strides[1],Z=0;Z<p;++Z)for(var X=0;X<g;++X)for(var ee=0;ee<v;++ee)for(var ne=ee-D,ie=Math.max(0,Math.ceil(ne/x)),te=Math.min(S,(f+ne)/x),re=0;re<b;++re){for(var le=re-k,he=Math.max(0,Math.ceil(le/C)),ye=Math.min(L,(m+le)/C),Oe=0,ke=ie;ke<te;++ke)for(var _e=ke*x-ne,Me=he;Me<ye;++Me)for(var ht=Me*C-le,Lt=K*Z+j*ke+q*Me,Ge=c*(f-1-_e)+h*(m-1-ht)+d*X,Ue=0;Ue<w;++Ue){var me=o[Lt+G*Ue],kt=l[Ge+Ue];Oe+=me*kt}var lt=F*Z+P*ee+H*re+_*X;s[lt]=Oe}return a.toTensor()},t.prototype.conv3dDerInput=function(e,i,r){for(var a=T.buffer(r.inShape,"float32"),s=a.values,o=a.strides,l=o[0],u=o[1],c=o[2],h=o[3],d=this.readSync(e.dataId),p=e.strides,f=p[0],m=p[1],g=p[2],v=p[3],b=this.readSync(i.dataId),w=i.strides,S=w[0],L=w[1],x=w[2],C=w[3],R=r.batchSize,D=r.filterDepth,k=r.filterHeight,W=r.filterWidth,F=r.inChannels,P=r.inDepth,H=r.inHeight,_=r.inWidth,K=r.outChannels,j=r.outDepth,q=r.outHeight,G=r.outWidth,Z=r.strideDepth,X=r.strideHeight,ee=r.strideWidth,ne=D-1-r.padInfo.front,ie=k-1-r.padInfo.top,te=W-1-r.padInfo.left,re=0;re<R;++re)for(var le=0;le<F;++le)for(var he=0;he<P;++he)for(var ye=he-ne,Oe=Math.max(0,Math.ceil(ye/Z)),ke=Math.min(j,(D+ye)/Z),_e=0;_e<H;++_e)for(var Me=_e-ie,ht=Math.max(0,Math.ceil(Me/X)),Lt=Math.min(q,(k+Me)/X),Ge=0;Ge<_;++Ge){for(var Ue=Ge-te,me=Math.max(0,Math.ceil(Ue/ee)),kt=Math.min(G,(W+Ue)/ee),lt=0,dt=Oe;dt<ke;++dt)for(var Cn=dt*Z-ye,Ot=ht;Ot<Lt;++Ot)for(var It=Ot*X-Me,Ce=me;Ce<kt;++Ce)for(var Ft=Ce*ee-Ue,pt=f*re+m*dt+g*Ot+v*Ce,it=S*(D-1-Cn)+L*(k-1-It)+x*(W-1-Ft)+C*le,on=0;on<K;++on){var fs=d[pt+on],zt=b[it+on];lt+=fs*zt}s[l*re+u*he+c*_e+h*Ge+le]=lt}return a.toTensor()},t.prototype.conv2dDerFilter=function(e,i,r){ae([e,i],"conv2dDerFilter");for(var a=r.strideHeight,s=r.strideWidth,o=r.filterHeight,l=r.filterWidth,u=r.dataFormat==="channelsLast",c=T.buffer(r.filterShape,"float32"),h=r.padInfo.left,d=r.padInfo.top,p=this.bufferSync(e),f=this.bufferSync(i),m=0;m<o;++m)for(var g=Math.max(0,Math.ceil((d-m)/a)),v=Math.min(r.outHeight,(r.inHeight+d-m)/a),b=0;b<l;++b)for(var w=Math.max(0,Math.ceil((h-b)/s)),S=Math.min(r.outWidth,(r.inWidth+h-b)/s),L=0;L<r.inChannels;++L)for(var x=0;x<r.outChannels;++x){for(var C=0,R=0;R<r.batchSize;++R)for(var D=g;D<v;++D)for(var k=m+D*a-d,W=w;W<S;++W){var F=b+W*s-h;u?C+=p.get(R,k,F,L)*f.get(R,D,W,x):C+=p.get(R,L,k,F)*f.get(R,x,D,W)}c.set(C,m,b,L,x)}return c.toTensor()},t.prototype.conv3dDerFilter=function(e,i,r){for(var a=r.strideDepth,s=r.strideHeight,o=r.strideWidth,l=r.filterDepth,u=r.filterHeight,c=r.filterWidth,h=T.buffer(r.filterShape,"float32"),d=h.values,p=h.strides,f=p[0],m=p[1],g=p[2],v=p[3],b=this.readSync(i.dataId),w=i.strides,S=w[0],L=w[1],x=w[2],C=w[3],R=this.readSync(e.dataId),D=e.strides,k=D[0],W=D[1],F=D[2],P=D[3],H=r.padInfo.front,_=r.padInfo.left,K=r.padInfo.top,j=0;j<l;++j)for(var q=Math.max(0,Math.ceil((H-j)/a)),G=Math.min(r.outDepth,(r.inDepth+H-j)/a),Z=j*f,X=0;X<u;++X)for(var ee=Math.max(0,Math.ceil((K-X)/s)),ne=Math.min(r.outHeight,(r.inHeight+K-X)/s),ie=X*m+Z,te=0;te<c;++te)for(var re=Math.max(0,Math.ceil((_-te)/o)),le=Math.min(r.outWidth,(r.inWidth+_-te)/o),he=te*g+ie,ye=0;ye<r.inChannels;++ye)for(var Oe=ye*v+he,ke=0;ke<r.outChannels;++ke){for(var _e=0,Me=0;Me<r.batchSize;++Me)for(var ht=Me*k,Lt=Me*S,Ge=q;Ge<G;++Ge)for(var Ue=j+Ge*a-H,me=Ue*W+ht,kt=Ge*L+Lt,lt=ee;lt<ne;++lt)for(var dt=X+lt*s-K,Cn=dt*F+me,Ot=lt*x+kt,It=re;It<le;++It){var Ce=te+It*o-_,Ft=Ce*P+Cn,pt=It*C+Ot;_e+=R[Ft+ye]*b[pt+ke]}d[Oe+ke]=_e}return h.toTensor()},t.prototype.fusedDepthwiseConv2D=function(e){var i=e.input,r=e.filter,a=e.convInfo,s=e.bias,o=e.activation,l=e.preluActivationWeights,u=this.depthwiseConv2D(i,r,a);return s&&(u=T.add(u,s)),o&&(u=Id(this,u,o,l)),u},t.prototype.depthwiseConv2D=function(e,i,r){ae([e,i],"depthwiseConv2D");for(var a=r.filterHeight,s=r.filterWidth,o=r.dilationHeight,l=r.dilationWidth,u=r.padInfo.left,c=r.padInfo.top,h=r.outChannels/r.inChannels,d=T.buffer(r.outShape,e.dtype),p=this.readSync(e.dataId),f=this.readSync(i.dataId),m=d.values,g=0;g<r.batchSize;++g)for(var v=g*e.strides[0],b=g*d.strides[0],w=0;w<r.outHeight;++w)for(var S=b+w*d.strides[1],L=w*r.strideHeight-u,x=0;x<a;++x){var C=L+x*o;if(C<0||C>=r.inHeight)continue;for(var R=x*i.strides[0],D=v+C*e.strides[1],k=0;k<r.outWidth;++k)for(var W=S+k*d.strides[2],F=k*r.strideWidth-c,P=0;P<s;++P){var H=F+P*l;if(H<0||H>=r.inWidth)continue;for(var _=R+P*i.strides[1],K=D+H*r.inChannels,j=W,q=_,G=0;G<r.inChannels;++G){for(var Z=p[K+G],X=0;X<h;++X)m[j+X]+=Z*f[q+X];j+=h,q+=h}}}return d.toTensor()},t.prototype.depthwiseConv2DDerInput=function(e,i,r){ae([e,i],"depthwiseConv2DDerInput");for(var a=T.buffer(r.inShape,"float32"),s=a.values,o=a.strides,l=o[0],u=o[1],c=o[2],h=this.readSync(e.dataId),d=e.strides,p=d[0],f=d[1],m=d[2],g=this.readSync(i.dataId),v=i.strides,b=v[0],w=v[1],S=v[2],L=r.batchSize,x=r.filterHeight,C=r.filterWidth,R=r.inChannels,D=r.inHeight,k=r.inWidth,W=r.outChannels,F=r.outHeight,P=r.outWidth,H=r.strideHeight,_=r.strideWidth,K=x-1-r.padInfo.top,j=C-1-r.padInfo.left,q=W/R,G=0;G<L;++G)for(var Z=0;Z<R;++Z)for(var X=0;X<D;++X)for(var ee=X-K,ne=Math.max(0,Math.ceil(ee/H)),ie=Math.min(F,(x+ee)/H),te=0;te<k;++te){for(var re=te-j,le=Math.max(0,Math.ceil(re/_)),he=Math.min(P,(C+re)/_),ye=0,Oe=ne;Oe<ie;++Oe)for(var ke=Oe*H-ee,_e=le;_e<he;++_e)for(var Me=_e*_-re,ht=p*G+f*Oe+m*_e,Lt=b*(x-1-ke)+w*(C-1-Me)+S*Z,Ge=0;Ge<q;++Ge){var Ue=Z*q+Ge,me=h[ht+Ue],kt=g[Lt+Ge];ye+=me*kt}s[l*G+u*X+c*te+Z]=ye}return a.toTensor()},t.prototype.depthwiseConv2DDerFilter=function(e,i,r){ae([e,i],"depthwiseConv2DDerFilter");for(var a=r.strideHeight,s=r.strideWidth,o=r.filterHeight,l=r.filterWidth,u=T.buffer(r.filterShape,"float32"),c=r.padInfo.left,h=r.padInfo.top,d=r.outChannels/r.inChannels,p=this.bufferSync(e),f=this.bufferSync(i),m=0;m<o;++m)for(var g=Math.max(0,Math.ceil((h-m)/a)),v=Math.min(r.outHeight,(r.inHeight+h-m)/a),b=0;b<l;++b)for(var w=Math.max(0,Math.ceil((c-b)/s)),S=Math.min(r.outWidth,(r.inWidth+c-b)/s),L=0;L<r.outChannels;++L){for(var x=Math.trunc(L/d),C=L%d,R=0,D=0;D<r.batchSize;++D)for(var k=g;k<v;++k)for(var W=m+k*a-h,F=w;F<S;++F){var P=b+F*s-c;R+=p.get(D,W,P,x)*f.get(D,k,F,L)}u.set(R,m,b,x,C)}return u.toTensor()},t.prototype.tile=function(e,i){return ae(e,"tile"),pB(this.bufferSync(e),i)},t.prototype.gather=function(e,i,r){ae([e,i],"gather");var a=e.shape.slice(),s=this.readSync(i.dataId);a[r]=s.length;for(var o=T.buffer(a,e.dtype),l=this.bufferSync(e),u=0;u<o.size;++u){var c=o.indexToLoc(u),h=c.slice();h[r]=s[c[r]];var d=l.locToIndex(h);o.values[u]=l.values[d]}return o.toTensor()},t.prototype.batchToSpaceND=function(e,i,r){ae([e],"batchToSpaceND");var a=i.reduce(function(h,d){return h*d}),s=T.backend_util.getReshaped(e.shape,i,a),o=T.backend_util.getPermuted(s.length,i.length),l=T.backend_util.getReshapedPermuted(e.shape,i,a),u=T.backend_util.getSliceBeginCoords(r,i.length),c=T.backend_util.getSliceSize(l,r,i.length);return T.transpose(e.reshape(s),o).reshape(l).slice(u,c)},t.prototype.pool3d=function(e,i,r){ae(e,"pool3d");for(var a=i.strideDepth,s=i.strideHeight,o=i.strideWidth,l=i.dilationDepth,u=i.dilationHeight,c=i.dilationWidth,h=i.effectiveFilterDepth,d=i.effectiveFilterHeight,p=i.effectiveFilterWidth,f=i.padInfo.front,m=i.padInfo.top,g=i.padInfo.left,v=r==="max"?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,b=this.readSync(e.dataId),w=T.buffer(i.outShape,e.dtype),S=w.values,L=i.outShape[1]*i.outShape[2]*i.outShape[3]*i.outShape[4],x=i.outShape[2]*i.outShape[3]*i.outShape[4],C=i.outShape[3]*i.outShape[4],R=i.outShape[4],D=0;D<i.batchSize;++D)for(var k=D*L,W=D*e.strides[0],F=0;F<i.inChannels;++F)for(var P=0;P<i.outDepth;++P){for(var H=P*a-f,_=H;_<0;)_+=l;for(var K=Math.min(i.inDepth,h+H),j=k+P*x,q=0;q<i.outHeight;++q){for(var G=q*s-m,Z=G;Z<0;)Z+=u;for(var X=Math.min(i.inHeight,d+G),ee=j+q*C,ne=0;ne<i.outWidth;++ne){for(var ie=ne*o-g,te=ie;te<0;)te+=c;for(var re=Math.min(i.inWidth,p+ie),le=ee+ne*R,he=v,ye=0,Oe=0,ke=_;ke<K;ke+=l){for(var _e=W+ke*e.strides[1],Me=Z;Me<X;Me+=u){for(var ht=_e+Me*e.strides[2],Lt=te;Lt<re;Lt+=c){var Ge=ht+Lt*e.strides[3],Ue=b[Ge+F];if(r==="max"&&Ue>he?he=Ue:r==="avg"&&(ye+=Ue,Oe++),isNaN(he))break}if(isNaN(he))break}if(isNaN(he))break}var me=le+F;S[me]=r==="avg"?ye/Oe:he}}}return w.toTensor()},t.prototype.avgPool3d=function(e,i){return ae(e,"avgPool3d"),this.pool3d(e,i,"avg").toFloat()},t.prototype.avgPool3dBackprop=function(e,i,r){ae([e,i],"avgPool3dBackprop");for(var a=r.strideDepth,s=r.strideHeight,o=r.strideWidth,l=r.filterDepth,u=r.filterHeight,c=r.filterWidth,h=r.dilationDepth,d=r.dilationHeight,p=r.dilationWidth,f=r.effectiveFilterDepth,m=r.effectiveFilterHeight,g=r.effectiveFilterWidth,v=f-1-r.padInfo.front,b=g-1-r.padInfo.left,w=m-1-r.padInfo.top,S=T.buffer(i.shape,"float32"),L=1/(l*u*c),x=this.bufferSync(e),C=0;C<r.batchSize;++C)for(var R=0;R<r.inChannels;++R)for(var D=0;D<r.inDepth;++D)for(var k=0;k<r.inHeight;++k)for(var W=0;W<r.inWidth;++W){for(var F=D-v,P=k-w,H=W-b,_=0,K=0;K<f;K+=h){var j=(F+K)/a;if(j<0||j>=r.outDepth||Math.floor(j)!==j)continue;for(var q=0;q<m;q+=d){var G=(P+q)/s;if(G<0||G>=r.outHeight||Math.floor(G)!==G)continue;for(var Z=0;Z<g;Z+=p){var X=(H+Z)/o;if(X<0||X>=r.outWidth||Math.floor(X)!==X)continue;var ee=x.get(C,j,G,X,R);_+=ee}}}S.set(_*L,C,D,k,W,R)}return S.toTensor()},t.prototype.maxPool3d=function(e,i){return ae(e,"maxPool3d"),this.pool3d(e,i,"max").toFloat()},t.prototype.maxPool3dPositions=function(e,i){for(var r=T.buffer(i.outShape,"int32"),a=i.strideDepth,s=i.strideHeight,o=i.strideWidth,l=i.dilationDepth,u=i.dilationHeight,c=i.dilationWidth,h=i.effectiveFilterDepth,d=i.effectiveFilterHeight,p=i.effectiveFilterWidth,f=i.padInfo.front,m=i.padInfo.top,g=i.padInfo.left,v=this.bufferSync(e),b=0;b<i.batchSize;++b)for(var w=0;w<i.inChannels;++w)for(var S=0;S<i.outDepth;++S){for(var L=S*a-f,x=L;x<0;)x+=l;for(var C=Math.min(i.inDepth,h+L),R=0;R<i.outHeight;++R){for(var D=R*s-m,k=D;k<0;)k+=u;for(var W=Math.min(i.inHeight,d+D),F=0;F<i.outWidth;++F){for(var P=F*o-g,H=P;H<0;)H+=c;for(var _=Math.min(i.inWidth,p+P),K=Number.NEGATIVE_INFINITY,j=-1,q=x;q<C;q+=l)for(var G=q-L,Z=k;Z<W;Z+=u)for(var X=Z-D,ee=H;ee<_;ee+=c){var ne=ee-P,ie=v.get(b,q,Z,ee,w);ie>=K&&(K=ie,j=G*d*p+X*d+ne)}r.set(j,b,S,R,F,w)}}}return r.toTensor()},t.prototype.maxPool3dBackprop=function(e,i,r,a){ae([i,r],"maxPool3dBackprop");for(var s=this.maxPool3dPositions(i,a),o=a.strideDepth,l=a.strideHeight,u=a.strideWidth,c=a.dilationDepth,h=a.dilationHeight,d=a.dilationWidth,p=a.effectiveFilterDepth,f=a.effectiveFilterHeight,m=a.effectiveFilterWidth,g=p-1-a.padInfo.front,v=m-1-a.padInfo.left,b=f-1-a.padInfo.top,w=T.buffer(i.shape,"float32"),S=this.bufferSync(s),L=this.bufferSync(e),x=0;x<a.batchSize;++x)for(var C=0;C<a.inChannels;++C)for(var R=0;R<a.inDepth;++R)for(var D=0;D<a.inHeight;++D)for(var k=0;k<a.inWidth;++k){for(var W=R-g,F=D-b,P=k-v,H=0,_=0;_<p;_+=c){var K=(W+_)/o;if(K<0||K>=a.outDepth||Math.floor(K)!==K)continue;for(var j=0;j<f;j+=h){var q=(F+j)/l;if(q<0||q>=a.outHeight||Math.floor(q)!==q)continue;for(var G=0;G<m;G+=d){var Z=(P+G)/u;if(Z<0||Z>=a.outWidth||Math.floor(Z)!==Z)continue;var X=p*f*m-1-S.get(x,K,q,Z,C),ee=_*f*m+j*m+G,ne=X===ee?1:0;if(ne===0)continue;var ie=L.get(x,K,q,Z,C);H+=ie*ne}}}w.set(H,x,R,D,k,C)}return w.toTensor()},t.prototype.resizeBilinear=function(e,i,r,a){ae(e,"resizeBilinear");for(var s=e.shape,o=s[0],l=s[1],u=s[2],c=s[3],h=this.readSync(e.dataId),d=new Float32Array(T.util.sizeFromShape([o,i,r,c])),p=[a&&i>1?l-1:l,a&&r>1?u-1:u],f=[a&&i>1?i-1:i,a&&r>1?r-1:r],m=0,g=p[0]/f[0],v=p[1]/f[1],b=0;b<o;b++)for(var w=0;w<i;w++)for(var S=g*w,L=Math.floor(S),x=S-L,C=Math.min(l-1,Math.ceil(S)),R=b*e.strides[0]+L*e.strides[1],D=b*e.strides[0]+C*e.strides[1],k=0;k<r;k++)for(var W=v*k,F=Math.floor(W),P=W-F,H=Math.min(u-1,Math.ceil(W)),_=R+F*e.strides[2],K=D+F*e.strides[2],j=R+H*e.strides[2],q=D+H*e.strides[2],G=0;G<c;G++){var Z=h[_+G],X=h[K+G],ee=h[j+G],ne=h[q+G],ie=Z+(ee-Z)*P,te=X+(ne-X)*P,re=ie+(te-ie)*x;d[m++]=re}return T.tensor(d,[o,i,r,c])},t.prototype.resizeBilinearBackprop=function(e,i,r){ae([e,i],"resizeBilinearBackprop");for(var a=i.shape,s=a[0],o=a[1],l=a[2],u=a[3],c=e.shape,h=c[1],d=c[2],p=new Float32Array(s*o*l*u),f=[r&&h>1?o-1:o,r&&d>1?l-1:l],m=[r&&h>1?h-1:h,r&&d>1?d-1:d],g=f[0]/m[0],v=f[1]/m[1],b=this.readSync(e.dataId),w=0,S=0;S<s;S++)for(var L=S*i.strides[0],x=0;x<h;x++)for(var C=x*g,R=Math.floor(C),D=Math.min(Math.ceil(C),o-1),k=L+R*i.strides[1],W=L+D*i.strides[1],F=C-R,P=1-F,H=0;H<d;H++)for(var _=H*v,K=Math.floor(_),j=Math.min(Math.ceil(_),l-1),q=_-K,G=1-q,Z=k+K*i.strides[2],X=k+j*i.strides[2],ee=W+K*i.strides[2],ne=W+j*i.strides[2],ie=P*G,te=P*q,re=F*G,le=F*q,he=0;he<u;he++){var ye=b[w++];p[Z+he]+=ye*ie,p[X+he]+=ye*te,p[ee+he]+=ye*re,p[ne+he]+=ye*le}return T.tensor4d(p,[s,l,o,u],i.dtype)},t.prototype.resizeNearestNeighbor=function(e,i,r,a){ae(e,"resizeNearestNeighbor");for(var s=e.shape,o=s[0],l=s[1],u=s[2],c=s[3],h=this.readSync(e.dataId),d=new Float32Array(o*i*r*c),p=[a&&i>1?l-1:l,a&&r>1?u-1:u],f=[a&&i>1?i-1:i,a&&r>1?r-1:r],m=p[0]/f[0],g=p[1]/f[1],v=0,b=0;b<o;b++)for(var w=b*e.strides[0],S=0;S<i;S++)for(var L=m*S,x=Math.min(l-1,a?Math.round(L):Math.floor(L)),C=w+x*e.strides[1],R=0;R<r;R++)for(var D=g*R,k=Math.min(u-1,a?Math.round(D):Math.floor(D)),W=C+k*e.strides[2],F=0;F<c;F++){var P=h[W+F];d[v++]=P}return T.tensor(d,[o,i,r,c],e.dtype)},t.prototype.resizeNearestNeighborBackprop=function(e,i,r){ae([e,i],"resizeNearestNeighborBackprop");for(var a=i.shape,s=a[0],o=a[1],l=a[2],u=a[3],c=e.shape,h=c[1],d=c[2],p=new Float32Array(s*o*l*u),f=this.readSync(e.dataId),m=[r&&h>1?o-1:o,r&&d>1?l-1:l],g=[r&&h>1?h-1:h,r&&d>1?d-1:d],v=m[0]/g[0],b=m[1]/g[1],w=1/v,S=1/b,L=Math.ceil(w)*2+2,x=Math.ceil(S)*2+2,C=0;C<s;C++)for(var R=C*i.strides[0],D=0;D<o;D++)for(var k=R+D*i.strides[1],W=Math.floor(D*w),F=Math.floor(W-L/2),P=0;P<l;P++)for(var H=k+P*i.strides[2],_=Math.floor(P*S),K=Math.floor(_-x/2),j=0;j<u;j++){for(var q=0,G=0;G<L;G++){var Z=G+F;if(Z<0||Z>=h)continue;var X=R+Z*e.strides[1],ee=Z*v,ne=Math.min(o-1,r?Math.round(ee):Math.floor(ee));if(D!==ne)continue;for(var ie=0;ie<x;ie++){var te=ie+K;if(te<0||te>=d)continue;var re=X+te*e.strides[2],le=te*b,he=Math.min(l-1,r?Math.round(le):Math.floor(le));P===he&&(q+=f[re+j])}}p[H+j]=q}return T.tensor4d(p,i.shape,i.dtype)},t.prototype.localResponseNormalization4D=function(e,i,r,a,s){ae(e,"localResponseNormalization4D");var o=e.shape[3],l=o-1,u=this.readSync(e.dataId),c=e.size,h=new Float32Array(c);function d(g){for(var v=g%o,b=g-v+Math.max(0,v-i),w=g-v+Math.min(v+i,l),S=0;b<=w;b++){var L=u[b];S+=L*L}return S}for(var p=0;p<c;p++){var f=d(p),m=u[p]*Math.pow(r+a*f,-s);h[p]=m}return T.tensor4d(h,e.shape)},t.prototype.LRNGrad=function(e,i,r,a,s,o,l){ae(e,"LRNGrad");for(var u=e.shape[3],c=this.readSync(e.dataId),h=this.readSync(i.dataId),d=this.readSync(r.dataId),p=new Float32Array(e.size),f=e.size,m=0;m<f;m++){for(var g=m%u,v=m-g+Math.max(0,g-a),b=m-g+Math.min(u,g+a+1),w=0,S=v;S<b;S++)w+=Math.pow(h[S],2);w=o*w+s;for(var S=v;S<b;S++){var L=-2*o*l*h[S]*d[m]/w;m===S&&(L+=Math.pow(w,-l)),L*=c[m],p[S]+=L}}return T.tensor4d(p,e.shape)},t.prototype.multinomial=function(e,i,r,a){ae(e,"multinomial");for(var s=i?e:T.softmax(e),o=s.shape[0],l=s.shape[1],u=T.zeros([o,r],"int32"),c=this.readSync(u.dataId),h=this.readSync(s.dataId),d=0;d<o;++d){var p=d*l,f=new Float32Array(l-1);f[0]=h[p];for(var m=1;m<f.length;++m)f[m]=f[m-1]+h[p+m];for(var g=uB.alea(a.toString()),v=d*r,b=0;b<r;++b){var w=g();c[v+b]=f.length;for(var S=0;S<f.length;S++)if(w<f[S]){c[v+b]=S;break}}}return u},t.prototype.oneHot=function(e,i,r,a){ae(e,"oneHot");var s=new Float32Array(e.size*i);s.fill(a);for(var o=this.readSync(e.dataId),l=0;l<e.size;++l)o[l]>=0&&o[l]<i&&(s[l*i+o[l]]=r);return T.tensor2d(s,[e.size,i],"int32")},t.prototype.nonMaxSuppression=function(e,i,r,a,s){ae(e,"nonMaxSuppression");var o=this.readSync(e.dataId),l=this.readSync(i.dataId);return hB(o,l,r,a,s)},t.prototype.depthToSpace=function(e,i,r){T.util.assert(r==="NHWC",function(){return"Only NHWC dataFormat supported on CPU for depthToSpace. Got "+r}),T.util.assert(i>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+i});for(var a=e.shape[0],s=e.shape[1],o=e.shape[2],l=e.shape[3],u=s*i,c=o*i,h=l/(i*i),d=this.readSync(e.dataId),p=new Float32Array(a*u*c*h),f=0,m=0;m<a;++m)for(var g=0;g<u;++g)for(var v=Math.floor(g/i),b=g%i,w=0;w<c;++w)for(var S=Math.floor(w/i),L=w%i,x=(b*i+L)*h,C=0;C<h;++C){var R=C+x,D=R+l*(S+o*(v+s*m));p[f++]=d[D]}return T.tensor4d(p,[a,u,c,h])},t.prototype.broadcastedBinaryOp=function(e,i,r,a){var s=T.backend_util.assertAndGetBroadcastShape(e.shape,i.shape),o=T.buffer(s,r),l=this.readSync(e.dataId),u=this.readSync(i.dataId),c=T.backend_util.getBroadcastDims(e.shape,s),h=T.backend_util.getBroadcastDims(i.shape,s),d=o.values;if(c.length+h.length===0)for(var p=0;p<d.length;++p)d[p]=a(l[p%l.length],u[p%u.length]);else for(var f=this.bufferSync(e),m=this.bufferSync(i),g=function(v){var b=o.indexToLoc(v),w=b.slice(-e.rank);c.forEach(function(C){return w[C]=0});var S=f.locToIndex(w),L=b.slice(-i.rank);h.forEach(function(C){return L[C]=0});var x=m.locToIndex(L);d[v]=a(l[S],u[x])},p=0;p<d.length;++p)g(p);return o.toTensor()},t.prototype.split=function(e,i,r){return dB(e,i,r)},t.prototype.dispose=function(){},t.prototype.floatPrecision=function(){return 32},t.prototype.epsilon=function(){return n.prototype.epsilon.call(this)},t.prototype.cropAndResize=function(e,i,r,a,s,o){for(var l=e.shape,u=l[0],c=l[1],h=l[2],d=l[3],p=i.shape[0],f=a[0],m=a[1],g=T.buffer([p,f,m,d],"float32"),v=this.readSync(i.dataId),b=this.readSync(r.dataId),w=this.readSync(e.dataId),S=e.strides,L=g.strides,x=0;x<p;x++){var C=x*4,R=v[C],D=v[C+1],k=v[C+2],W=v[C+3],F=b[x];if(F>=u)continue;for(var P=f>1?(k-R)*(c-1)/(f-1):0,H=m>1?(W-D)*(h-1)/(m-1):0,_=0;_<f;_++){var K=f>1?R*(c-1)+_*P:.5*(R+k)*(c-1);if(K<0||K>c-1){for(var j=0;j<m;j++)for(var q=0;q<d;q++){var G=q+j*L[2]+_*L[1]+x*L[0];g.values[G]=o}continue}if(s==="bilinear")for(var Z=Math.floor(K),X=Math.ceil(K),ee=K-Z,j=0;j<m;j++){var ne=m>1?D*(h-1)+j*H:.5*(D+W)*(h-1);if(ne<0||ne>h-1){for(var q=0;q<d;q++){var G=q+j*L[2]+_*L[1]+x*L[0];g.values[G]=o}continue}for(var ie=Math.floor(ne),te=Math.ceil(ne),re=ne-ie,q=0;q<d;q++){var G=q+ie*S[2]+Z*S[1]+F*S[0],le=w[G];G=q+te*S[2]+Z*S[1]+F*S[0];var he=w[G];G=q+ie*S[2]+X*S[1]+F*S[0];var ye=w[G];G=q+te*S[2]+X*S[1]+F*S[0];var Oe=w[G],ke=le+(he-le)*re,_e=ye+(Oe-ye)*re;G=q+j*L[2]+_*L[1]+x*L[0],g.values[G]=ke+(_e-ke)*ee}}else for(var j=0;j<m;++j){var ne=m>1?D*(h-1)+j*H:.5*(D+W)*(h-1);if(ne<0||ne>h-1){for(var q=0;q<d;q++){var G=q+j*L[2]+_*L[1]+x*L[0];g.values[G]=o}continue}for(var Me=Math.round(ne),ht=Math.round(K),q=0;q<d;q++){var Lt=q+Me*S[2]+ht*S[1]+F*S[0],Ge=q+j*L[2]+_*L[1]+x*L[0];g.values[Ge]=w[Lt]}}}}return g.toTensor()},t.prototype.sparseToDense=function(e,i,r,a){var s=T.backend_util.calculateShapes(i,e,r),o=s.sliceRank,l=s.numUpdates,u=s.sliceSize,c=s.strides,h=s.outputSize,d=!1;return this.scatter(e,i,r,h,u,l,o,c,a,d)},t.prototype.gatherND=function(e,i){var r=i.shape,a=r[r.length-1],s=T.backend_util.prepareAndValidate(e,i),o=s[0],l=s[1],u=s[2],c=s[3];if(l===0)return T.tensor([],o,e.dtype);for(var h=new T.TensorBuffer([l,u],e.dtype),d=this.readSync(i.dataId),p=this.readSync(e.dataId),f=0;f<l;f++){for(var m=[],g=0,v=0;v<a;v++){var b=d[f*a+v];g+=b*c[v],m.push(b)}if(g<0||g>=e.size/u)throw new Error("Invalid indices: "+m+" does not index into "+e.shape);for(var w=0;w<u;w++)h.values[f*u+w]=p[g*u+w]}return h.toTensor().reshape(o)},t.prototype.scatterND=function(e,i,r){var a=T.backend_util.calculateShapes(i,e,r),s=a.sliceRank,o=a.numUpdates,l=a.sliceSize,u=a.strides,c=a.outputSize,h=T.scalar(0),d=!0;return this.scatter(e,i,r,c,l,o,s,u,h,d)},t.prototype.fill=function(e,i,r){r=r||T.util.inferDtype(i);var a=T.util.getArrayFromDType(r,T.util.sizeFromShape(e));return a.fill(i),T.engine().makeTensor(a,e,r,this)},t.prototype.onesLike=function(e){if(e.dtype==="string")throw new Error("onesLike is not supported for string tensors");return this.fill(e.shape,1,e.dtype)},t.prototype.zerosLike=function(e){var i=T.util.getArrayFromDType(e.dtype,T.util.sizeFromShape(e.shape));return this.makeOutput(i,e.shape,e.dtype)},t.prototype.linspace=function(e,i,r){return T.backend_util.linspaceImpl(e,i,r)},t.prototype.scatter=function(e,i,r,a,s,o,l,u,c,h){var d=[a/s,s],p=this.readSync(e.dataId),f=this.readSync(i.dataId);if(a===0)return T.tensor([],r,i.dtype);var m=new T.TensorBuffer(d,i.dtype);m.values.fill(this.readSync(c.dataId)[0]);for(var g=0;g<o;g++){for(var v=[],b=0,w=0;w<l;w++){var S=p[g*l+w];v.push(S),b+=S*u[w]}if(b<0||b>=a/s)throw new Error("Invalid indices: "+v+" does not index into "+r);for(var L=0;L<s;L++)h?m.values[b*s+L]+=f[g*s+L]:m.values[b*s+L]=i.rank===0?f[0]:f[g*s+L]}return m.toTensor().reshape(r)},t}(T.KernelBackend);function Jw(n){for(var t=new Float32Array(n.length),e=0;e<n.length;++e)t[e]=Math.abs(n[e]);return t}var gB=function(n){var t=n.inputs.x,e=n.backend,i=new Float32Array(T.util.sizeFromShape(t.shape));if(t.dtype!=="complex64"){var r=e.data.get(t.dataId).values;i=Jw(r)}else for(var a=e.data.get(t.dataId),s=a.complexTensorInfos.real,o=a.complexTensorInfos.imag,l=e.data.get(s.dataId).values,u=e.data.get(o.dataId).values,c=0;c<l.length;c++){var h=l[c],d=u[c];i[c]=Math.hypot(h,d)}return e.makeOutput(i,t.shape,"float32")},vB={kernelName:T.Abs,backendName:"cpu",kernelFunc:gB};function cr(n){return function(t,e,i,r,a){var s=T.backend_util.assertAndGetBroadcastShape(t,e),o=s.length,l=T.util.computeStrides(s),u=T.util.sizeFromShape(s),c=T.util.getTypedArrayFromDType(a,u),h=t.length,d=e.length,p=T.util.computeStrides(t),f=T.util.computeStrides(e),m=T.backend_util.getBroadcastDims(t,s),g=T.backend_util.getBroadcastDims(e,s);if(m.length+g.length===0)for(var v=0;v<c.length;++v)c[v]=n(i[v%i.length],r[v%r.length]);else for(var b=function(w){var S=T.util.indexToLoc(w,o,l),L=S.slice(-h);m.forEach(function(D){return L[D]=0});var x=T.util.locToIndex(L,h,p),C=S.slice(-d);g.forEach(function(D){return C[D]=0});var R=T.util.locToIndex(C,d,f);c[w]=n(i[x],r[R])},v=0;v<c.length;++v)b(v);return[c,s]}}function An(n){var t=n.inputs,e=n.backend,i=t.real,r=t.imag,a=e.data.get(i.dataId).values,s=e.data.get(r.dataId).values,o=e.makeTensorInfo(i.shape,"complex64"),l=e.data.get(o.dataId);return l.complexTensorInfos={real:e.makeTensorInfo(i.shape,"float32",a),imag:e.makeTensorInfo(r.shape,"float32",s)},o}var yB={kernelName:T.Complex,backendName:"cpu",kernelFunc:An};function Jr(n){var t=n.inputs,e=n.backend,i=t.x;return e.incRef(i.dataId),{dataId:i.dataId,shape:i.shape,dtype:i.dtype}}var bB={kernelName:T.Identity,backendName:"cpu",kernelFunc:Jr};function Ja(n){var t=n.inputs,e=n.backend,i=t.input,r=e.data.get(i.dataId).complexTensorInfos.real,a=e.data.get(r.dataId).values;return e.makeTensorInfo(r.shape,r.dtype,a)}var wB={kernelName:T.Real,backendName:"cpu",kernelFunc:Ja};function Za(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x,a=i.dtype;if(a==="complex64"){if(r.dtype==="complex64")return Jr({inputs:{x:r},backend:e});var s=T.zeros(r.shape),o=Za({inputs:{x:r},backend:e,attrs:{dtype:"float32"}}),l=An({inputs:{real:o,imag:s},backend:e});return s.dispose(),e.disposeIntermediateTensorInfo(o),l}if(r.dtype==="complex64"){var u=Ja({inputs:{input:r},backend:e}),l=Za({inputs:{x:u},backend:e,attrs:{dtype:a}});return e.disposeIntermediateTensorInfo(u),l}if(!T.util.hasEncodingLoss(r.dtype,a)){var l=Jr({inputs:{x:r},backend:e});return{dataId:l.dataId,shape:l.shape,dtype:a}}if(a==="int32"){var c=e.data.get(r.dataId).values,h=Int32Array.from(c);return e.makeTensorInfo(r.shape,"int32",h)}if(a==="bool"){var d=e.data.get(r.dataId).values,p=T.util.toTypedArray([0],r.dtype),f=cr(function(v,b){return v!==b?1:0})(r.shape,[],d,p,"bool"),m=f[0],g=f[1];return e.makeTensorInfo(g,"bool",m)}throw new Error("Error in Cast: failed to cast "+r.dtype+" to "+a)}var SB={kernelName:T.Cast,backendName:"cpu",kernelFunc:Za};function Zr(n,t,e,i){return e==null?function(r){var a=r.inputs,s=r.backend,o=a,l=o.a,u=o.b,c=s;ae([l,u],n);var h=c.data.get(l.dataId).values,d=c.data.get(u.dataId).values,p=i||l.dtype,f=t(l.shape,u.shape,h,d,p),m=f[0],g=f[1];return c.makeTensorInfo(g,p,m)}:function(r){var a=r.inputs,s=r.backend,o=a,l=o.a,u=o.b,c=s;if(l.dtype==="complex64"||u.dtype==="complex64"){var h=Za({inputs:{x:l},backend:c,attrs:{dtype:"complex64"}}),d=c.data.get(h.dataId),p=d.complexTensorInfos.real,f=d.complexTensorInfos.imag,m=c.data.get(p.dataId).values,g=c.data.get(f.dataId).values,v=Za({inputs:{x:u},backend:c,attrs:{dtype:"complex64"}}),b=c.data.get(v.dataId),w=b.complexTensorInfos.real,S=b.complexTensorInfos.imag,L=c.data.get(w.dataId).values,x=c.data.get(S.dataId).values,C=e(l.shape,u.shape,m,g,L,x),R=C[0],D=C[1],k=C[2],W=c.makeTensorInfo(k,"float32",R),F=c.makeTensorInfo(k,"float32",D),P=An({inputs:{real:W,imag:F},backend:c});return c.disposeIntermediateTensorInfo(h),c.disposeIntermediateTensorInfo(v),c.disposeIntermediateTensorInfo(W),c.disposeIntermediateTensorInfo(F),P}else{var H=c.data.get(l.dataId).values,_=c.data.get(u.dataId).values,K=i||l.dtype,j=t(l.shape,u.shape,H,_,K),q=j[0],k=j[1];return c.makeTensorInfo(k,K,q)}}}function Ad(n){return function(t,e,i,r,a,s){var o=T.backend_util.assertAndGetBroadcastShape(t,e),l=T.util.sizeFromShape(o),u=o.length,c=T.util.computeStrides(o),h=T.util.getTypedArrayFromDType("float32",l),d=T.util.getTypedArrayFromDType("float32",l),p=T.backend_util.getBroadcastDims(t,o),f=T.backend_util.getBroadcastDims(e,o),m=T.backend_util.mergeRealAndImagArrays(i,r),g=T.backend_util.mergeRealAndImagArrays(a,s),v=t.length,b=T.util.computeStrides(t),w=e.length,S=T.util.computeStrides(e);if(p.length+f.length===0)for(var L=0;L<h.length;L++){var x=L%m.length,C=L%g.length,R=n(m[x*2],m[x*2+1],g[C*2],g[C*2+1]);h[L]=R.real,d[L]=R.imag}else for(var D=function(k){var W=T.util.indexToLoc(k,u,c),F=W.slice(-v);p.forEach(function(j){return F[j]=0});var P=T.util.locToIndex(F,v,b),H=W.slice(-w);f.forEach(function(j){return H[j]=0});var _=T.util.locToIndex(H,w,S),K=n(m[P*2],m[P*2+1],g[_*2],g[_*2+1]);h[k]=K.real,d[k]=K.imag},L=0;L<h.length;L++)D(L);return[h,d,o]}}var Zw=cr(function(n,t){return n+t}),LB=Ad(function(n,t,e,i){return{real:n+e,imag:t+i}}),Qw=Zr(T.Add,Zw,LB),IB={kernelName:T.Add,backendName:"cpu",kernelFunc:Qw};function Qr(n){return function(t,e,i){for(var r=T.util.getTypedArrayFromDType(e,t.length),a=0;a<t.length;++a)r[a]=n(t[a],i);return r}}function $e(n,t,e){return function(i){var r=i.inputs,a=i.attrs,s=i.backend,o=r.x;if(ae(o,n),o.dtype==="string"||e==="string")throw new Error("unaryKernelFunc does not support string input/output");for(var l=s,u=l.data.get(o.dataId).values,c=T.util.sizeFromShape(o.shape),h=e||o.dtype,d=T.util.getArrayFromDType(h,c),p=0;p<c;++p)d[p]=t(u[p],a);return l.makeTensorInfo(o.shape,h,d)}}function ea(n,t,e){return function(i){var r=i.inputs,a=i.attrs,s=i.backend,o=r.x;if(ae(o,n),o.dtype==="string"||e==="string")throw new Error("unaryKernelFunc does not support string input/output");var l=s,u=l.data.get(o.dataId).values,c=e||o.dtype,h=t(u,c,a);return l.makeTensorInfo(o.shape,c,h)}}var e0=Qr(function(n){return Math.ceil(n)}),AB=ea(T.Ceil,e0),TB={kernelName:T.Ceil,backendName:"cpu",kernelFunc:AB};var t0=Qr(function(n){return Math.exp(n)}),NB=ea(T.Exp,t0),xB={kernelName:T.Exp,backendName:"cpu",kernelFunc:NB};var n0=Qr(function(n){return Math.expm1(n)}),CB=ea(T.Expm1,n0),RB={kernelName:T.Expm1,backendName:"cpu",kernelFunc:CB};var i0=Qr(function(n){return Math.floor(n)}),OB=ea(T.Floor,i0),EB={kernelName:T.Floor,backendName:"cpu",kernelFunc:OB};var r0=Qr(function(n){return Math.log(n)}),DB=ea(T.Log,r0),kB={kernelName:T.Log,backendName:"cpu",kernelFunc:DB};function a0(n,t,e,i){for(var r=T.util.getTypedArrayFromDType(i,T.util.sizeFromShape(e)),a=0;a<r.length;++a){for(var s=a*t,o=n[s],l=0;l<t;++l){var 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e.makeTensorInfo(u,r.dtype,h)}var zB={kernelName:T.Slice,backendName:"cpu",kernelFunc:Td};var c0=cr(function(n,t){return n-t}),PB=Ad(function(n,t,e,i){return{real:n-e,imag:t-i}}),h0=Zr(T.Sub,c0,PB),_B={kernelName:T.Sub,backendName:"cpu",kernelFunc:h0};function Nd(n,t,e,i,r){for(var a=t.length,s=T.util.sizeFromShape(t),o=T.util.computeStrides(t),l=T.util.computeStrides(r),u=T.util.getTypedArrayFromDType(e,T.util.sizeFromShape(r)),c=0;c<s;++c){for(var h=T.util.indexToLoc(c,a,o),d=new Array(h.length),p=0;p<d.length;p++)d[p]=h[i[p]];var f=T.util.locToIndex(d,a,l);u[f]=n[c]}return u}function d0(n,t,e,i){for(var r=T.util.parseAxisParam(t,e)[0],a=[1,e[0],1],s=0;s<r;s++)a[0]*=e[s];a[1]=e[r];for(var s=r+1;s<e.length;s++)a[2]*=e[s];for(var o={},l=new Int32Array(e[r]),u=new T.TensorBuffer(a,i,n),c=[],h=a[0]===1&&a[2]===1,s=0;s<e[r];s++){var d=void 0;if(h)d=n[s].toString();else{for(var p=[],f=0;f<a[0];f++)for(var m=0;m<a[2];m++)p.push(u.get(f,s,m));d=p.join(",")}if(o[d]!==void 0)l[s]=o[d];else{var g=Object.keys(o).length;o[d]=g,l[s]=g,c.push(s)}}var v=a.slice();v[1]=Object.keys(o).length;var b=new T.TensorBuffer(v,i);c.forEach(function(S,L){for(var x=0;x<a[0];x++)for(var C=0;C<a[2];C++)b.set(u.get(x,S,C),x,L,C)});var w=e.slice();return w[r]=v[1],{outputValues:b.values,outputShape:w,indices:l}}var MB={__proto__:null,simpleAbsImpl:Jw,addImpl:Zw,ceilImpl:e0,expImpl:t0,expm1Impl:n0,floorImpl:i0,logImpl:r0,maxImpl:a0,multiplyImpl:s0,rsqrtImpl:l0,sliceImpl:u0,subImpl:c0,transposeImpl:Nd,uniqueImpl:d0};var HB="2.6.0";T.registerBackend("cpu",function(){return new Xw},1);var VB=$e(T.Acos,function(n){return Math.acos(n)}),qB={kernelName:T.Acos,backendName:"cpu",kernelFunc:VB};var GB=$e(T.Acosh,function(n){return Math.acosh(n)}),YB={kernelName:T.Acosh,backendName:"cpu",kernelFunc:GB};var KB=$e(T.Asin,function(n){return Math.asin(n)}),jB={kernelName:T.Asin,backendName:"cpu",kernelFunc:KB};var $B=$e(T.Asinh,function(n){return Math.asinh(n)}),XB={kernelName:T.Asinh,backendName:"cpu",kernelFunc:$B};var JB=$e(T.Atan,function(n){return Math.atan(n)}),ZB={kernelName:T.Atan,backendName:"cpu",kernelFunc:JB};var QB=$e(T.Atanh,function(n){return Math.atanh(n)}),ez={kernelName:T.Atanh,backendName:"cpu",kernelFunc:QB};function xd(n,t,e,i,r,a){for(var s=r.strideHeight,o=r.strideWidth,l=r.dilationHeight,u=r.dilationWidth,c=r.effectiveFilterHeight,h=r.effectiveFilterWidth,d=r.padInfo.top,p=r.padInfo.left,f=a==="max"?Number.NEGATIVE_INFINITY:Number.POSITIVE_INFINITY,m=T.buffer(r.outShape,e),g=m.values,v=r.outShape[1]*r.outShape[2]*r.outShape[3],b=r.outShape[2]*r.outShape[3],w=r.outShape[3],S=0;S<r.batchSize;++S)for(var L=S*v,x=S*i[0],C=0;C<r.inChannels;++C)for(var R=0;R<r.outHeight;++R)for(var D=R*s-d,k=Math.max(0,D),W=Math.min(r.inHeight,c+D),F=L+R*b,P=0;P<r.outWidth;++P){for(var H=P*o-p,_=Math.max(0,H),K=Math.min(r.inWidth,h+H),j=f,q=0,G=0,Z=k;Z<W;Z+=l){for(var X=x+Z*i[1],ee=_;ee<K;ee+=u){var ne=X+ee*i[2],ie=n[ne+C];a==="max"&&ie>j?j=ie:a==="avg"&&(q+=ie,G++)}if(isNaN(j))break}var te=F+P*w+C;g[te]=a==="avg"?q/G:j}return m}function p0(n,t,e,i,r,a){r===void 0&&(r=!1),a===void 0&&(a=!1);for(var s=T.buffer(i.outShape,"int32"),o=i.strideHeight,l=i.strideWidth,u=i.dilationHeight,c=i.dilationWidth,h=i.effectiveFilterHeight,d=i.effectiveFilterWidth,p=i.padInfo.top,f=i.padInfo.left,m=T.buffer(t,e,n),g=0;g<i.batchSize;++g)for(var v=0;v<i.inChannels;++v)for(var b=0;b<i.outHeight;++b){for(var w=b*o-p,S=w;S<0;)S+=u;for(var L=Math.min(i.inHeight,h+w),x=0;x<i.outWidth;++x){for(var C=x*l-f,R=C;R<0;)R+=c;for(var D=Math.min(i.inWidth,d+C),k=Number.NEGATIVE_INFINITY,W=-1,F=S;F<L;F+=u)for(var P=F-w,H=R;H<D;H+=c){var _=H-C,K=m.get(g,F,H,v);K>k&&(k=K,r?W=a?((g*i.inHeight+F)*i.inWidth+H)*i.inChannels+v:(F*i.inWidth+H)*i.inChannels+v:W=P*d+_)}s.set(W,g,b,x,v)}}return s}function tz(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x;ae(r,"avgPool");var a=i.filterSize,s=i.strides,o=i.pad,l=i.dimRoundingMode,u=1;T.util.assert(T.backend_util.eitherStridesOrDilationsAreOne(s,u),function(){return"Error in avgPool: Either strides or dilations must be 1. "+("Got strides "+s+" and dilations '"+u+"'")});var c=T.backend_util.computePool2DInfo(r.shape,a,s,u,o,l),h;if(c.filterWidth===1&&c.filterHeight===1&&T.util.arraysEqual(c.inShape,c.outShape))h=Jr({inputs:{x:r},backend:e});else{var d=e.data.get(r.dataId).values,p=T.util.computeStrides(r.shape),f=xd(d,r.shape,r.dtype,p,c,"avg");h=e.makeTensorInfo(c.outShape,r.dtype,f.values)}return h}var nz={kernelName:T.AvgPool,backendName:"cpu",kernelFunc:tz};function iz(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.dy,a=t.input,s=a;ae([r,a],"avgPoolBackprop");for(var o=i.filterSize,l=i.strides,u=i.pad,c=T.backend_util.computePool2DInfo(s.shape,o,l,1,u),h=c.strideHeight,d=c.strideWidth,p=c.filterHeight,f=c.filterWidth,m=c.dilationHeight,g=c.dilationWidth,v=c.effectiveFilterHeight,b=c.effectiveFilterWidth,w=b-1-c.padInfo.left,S=v-1-c.padInfo.top,L=T.buffer(s.shape,"float32"),x=1/(p*f),C=e.data.get(r.dataId).values,R=T.buffer(r.shape,"float32",C),D=0;D<c.batchSize;++D)for(var k=0;k<c.inChannels;++k)for(var W=0;W<c.inHeight;++W)for(var F=0;F<c.inWidth;++F){for(var P=W-S,H=F-w,_=0,K=0;K<v;K+=m){var j=(P+K)/h;if(j<0||j>=c.outHeight||Math.floor(j)!==j)continue;for(var q=0;q<b;q+=g){var G=(H+q)/d;if(G<0||G>=c.outWidth||Math.floor(G)!==G)continue;var Z=R.get(D,j,G,k);_+=Z}}L.set(_*x,D,W,F,k)}return e.makeTensorInfo(L.shape,L.dtype,L.values)}var rz={kernelName:T.AvgPoolBackprop,backendName:"cpu",kernelFunc:iz};function az(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x,a=t.scale,s=t.offset,o=t.mean,l=t.variance;T.util.assert(o.shape.length===l.shape.length,function(){return"Batch normalization gradient requires mean and variance to have equal ranks."}),T.util.assert(s==null||o.shape.length===s.shape.length,function(){return"Batch normalization gradient requires mean and offset to have equal ranks."}),T.util.assert(a==null||o.shape.length===a.shape.length,function(){return"Batch normalization gradient requires mean and scale to have equal ranks."}),ae([r,o,l,a,s],"batchNorm");var u=i.varianceEpsilon;u==null&&(u=.001);for(var c=e.data.get(r.dataId).values,h=e.data.get(o.dataId).values,d=e.data.get(l.dataId).values,p=a?e.data.get(a.dataId).values:new Float32Array([1]),f=s?e.data.get(s.dataId).values:new Float32Array([0]),m=new Float32Array(c.length),g=f.length,v=p.length,b=d.length,w=h.length,S=0,L=0,x=0,C=0,R=0;R<c.length;++R)m[R]=f[S++]+(c[R]-h[L++])*p[x++]/Math.sqrt(d[C++]+u),S>=g&&(S=0),L>=w&&(L=0),x>=v&&(x=0),C>=b&&(C=0);return e.makeTensorInfo(r.shape,r.dtype,m)}var sz={kernelName:T.FusedBatchNorm,backendName:"cpu",kernelFunc:az};var oz=$e(T.ClipByValue,function(n,t){var e=t;return n>e.clipValueMax?e.clipValueMax:n<e.clipValueMin?e.clipValueMin:n}),lz={kernelName:T.ClipByValue,backendName:"cpu",kernelFunc:oz};function Fo(n){var t=n.inputs,e=n.backend,i=t.input,r=e.data.get(i.dataId).complexTensorInfos.imag,a=e.data.get(r.dataId).values;return e.makeTensorInfo(r.shape,r.dtype,a)}var uz={kernelName:T.Imag,backendName:"cpu",kernelFunc:Fo};function Ti(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x,a=i.shape,s=T.util.sizeFromShape(r.shape),o=T.util.inferFromImplicitShape(a,s),l=T.util.sizeFromShape(o);T.util.assert(s===l,function(){return"The new shape ("+o+") has "+l+" elements and the old "+("shape ("+r.shape+") has "+s+" elements. 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Fo({inputs:{input:S},backend:e})}),h=Qa({inputs:u,backend:e,attrs:{axis:r}}),d=Qa({inputs:c,backend:e,attrs:{axis:r}}),p=An({inputs:{real:h,imag:d},backend:e});return u.forEach(function(S){return e.disposeIntermediateTensorInfo(S)}),c.forEach(function(S){return e.disposeIntermediateTensorInfo(S)}),e.disposeIntermediateTensorInfo(h),e.disposeIntermediateTensorInfo(d),p}var f=o.map(function(S){var L=T.util.sizeFromShape(S.shape.slice(a)),x=[-1,L];return Ti({inputs:{x:S},backend:e,attrs:{shape:x}})});s=T.backend_util.computeOutShape(f.map(function(S){return S.shape}),1);var m=T.util.getTypedArrayFromDType(o[0].dtype,T.util.sizeFromShape(s));if(f[0].shape[0]===1){var g=0;f.forEach(function(S){var L=e.data.get(S.dataId).values,x=T.util.sizeFromShape(S.shape);m.set(L,g),g+=x})}else{var v=0;f.forEach(function(S){for(var L=e.data.get(S.dataId).values,x=0,C=0;C<S.shape[0];++C)for(var R=C*s[1]+v,D=0;D<S.shape[1];++D)m[R+D]=L[x++];v+=S.shape[1]})}var b=T.backend_util.computeOutShape(o.map(function(S){return S.shape}),a),w=e.makeTensorInfo(b,t[0].dtype,m);return f.forEach(function(S){return e.disposeIntermediateTensorInfo(S)}),w}var hz={kernelName:T.Concat,backendName:"cpu",kernelFunc:Qa};var dz=$e(T.Cos,function(n){return Math.cos(n)}),pz={kernelName:T.Cos,backendName:"cpu",kernelFunc:dz};var fz=$e(T.Cosh,function(n){return Math.cosh(n)}),mz={kernelName:T.Cosh,backendName:"cpu",kernelFunc:fz};var gz={kernelName:T.Dilation2D,backendName:"cpu",kernelFunc:function(n){for(var t=n.inputs,e=n.backend,i=n.attrs,r=t,a=r.x,s=r.filter,o=i,l=o.strides,u=o.pad,c=o.dilations,h=e,d=h.data.get(a.dataId).values,p=a.shape.length,f=h.data.get(s.dataId).values,m=s.shape.length,g=T.backend_util.computeDilation2DInfo(a.shape,s.shape,l,u,"NHWC",c),v=g.batchSize,b=g.inHeight,w=g.inWidth,S=g.inChannels,L=g.outHeight,x=g.outWidth,C=g.padInfo,R=g.strideHeight,D=g.strideWidth,k=g.filterHeight,W=g.filterWidth,F=g.dilationHeight,P=g.dilationWidth,H=g.outShape,_=T.util.sizeFromShape(H),K=H.length,j=T.util.getArrayFromDType(a.dtype,_),q=0;q<v;++q)for(var G=0;G<L;++G)for(var Z=G*R-C.top,X=0;X<x;++X)for(var ee=X*D-C.left,ne=0;ne<S;++ne){for(var ie=Number.MIN_SAFE_INTEGER,te=0;te<k;++te){var re=Z+te*F;if(re>=0&&re<b)for(var le=0;le<W;++le){var he=ee+le*P;if(he>=0&&he<w){var ye=T.util.locToIndex([q,re,he,ne],p,T.util.computeStrides(a.shape)),Oe=T.util.locToIndex([te,le,ne],m,T.util.computeStrides(s.shape)),ke=d[ye]+f[Oe];ke>ie&&(ie=ke)}}}var _e=T.util.locToIndex([q,G,X,ne],K,T.util.computeStrides(H));j[_e]=ie}var Me=h.write(T.util.toTypedArray(j,a.dtype),H,a.dtype);return{dataId:Me,shape:H,dtype:a.dtype}}};var vz={kernelName:T.Dilation2DBackpropFilter,backendName:"cpu",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t,a=r.x,s=r.filter,o=r.dy,l=i,u=l.strides,c=l.pad,h=l.dilations,d=e,p=T.util.toNestedArray(a.shape,d.data.get(a.dataId).values),f=T.util.toNestedArray(s.shape,d.data.get(s.dataId).values),m=T.backend_util.computeDilation2DInfo(a.shape,s.shape,u,c,"NHWC",h),g=m.batchSize,v=m.inHeight,b=m.inWidth,w=m.inChannels,S=m.outHeight,L=m.outWidth,x=m.padInfo,C=m.strideHeight,R=m.strideWidth,D=m.filterHeight,k=m.filterWidth,W=m.dilationHeight,F=m.dilationWidth,P=m.outShape;T.util.assert(o.rank===P.length,function(){return"Error in "+T.Dilation2DBackpropFilter+", dy "+("must have the same rank as output "+P.length+", but got ")+(""+o.rank)});for(var H=T.util.toNestedArray(P,d.data.get(o.dataId).values),_=T.util.makeZerosNestedTypedArray(s.shape,s.dtype),K=0;K<g;++K)for(var j=0;j<S;++j)for(var q=j*C-x.top,G=0;G<L;++G)for(var Z=G*R-x.left,X=0;X<w;++X){for(var ee=Number.MIN_SAFE_INTEGER,ne=0,ie=0,te=0;te<D;++te){var re=q+te*W;if(re>=0&&re<v)for(var le=0;le<k;++le){var he=Z+le*F;if(he>=0&&he<b){var ye=p[K][re][he][X]+f[te][le][X];ye>ee&&(ee=ye,ne=te,ie=le)}}}_[ne][ie][X]+=H[K][j][G][X]}var Oe=d.write(T.util.toTypedArray(_,a.dtype),s.shape,s.dtype);return{dataId:Oe,shape:s.shape,dtype:s.dtype}}};var yz={kernelName:T.Dilation2DBackpropInput,backendName:"cpu",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t,a=r.x,s=r.filter,o=r.dy,l=i,u=l.strides,c=l.pad,h=l.dilations,d=e,p=T.util.toNestedArray(a.shape,d.data.get(a.dataId).values),f=T.util.toNestedArray(s.shape,d.data.get(s.dataId).values),m=T.backend_util.computeDilation2DInfo(a.shape,s.shape,u,c,"NHWC",h),g=m.batchSize,v=m.inHeight,b=m.inWidth,w=m.inChannels,S=m.outHeight,L=m.outWidth,x=m.padInfo,C=m.strideHeight,R=m.strideWidth,D=m.filterHeight,k=m.filterWidth,W=m.dilationHeight,F=m.dilationWidth,P=m.outShape;T.util.assert(o.rank===P.length,function(){return"Error in "+T.Dilation2DBackpropInput+", dy "+("must have the same rank as output "+P.length+", but got ")+(""+o.rank)});for(var H=T.util.toNestedArray(P,d.data.get(o.dataId).values),_=T.util.makeZerosNestedTypedArray(a.shape,a.dtype),K=0;K<g;++K)for(var j=0;j<S;++j)for(var q=j*C-x.top,G=0;G<L;++G)for(var Z=G*R-x.left,X=0;X<w;++X){for(var ee=Number.MIN_SAFE_INTEGER,ne=q<0?0:q,ie=Z<0?0:Z,te=0;te<D;++te){var re=q+te*W;if(re>=0&&re<v)for(var le=0;le<k;++le){var he=Z+le*F;if(he>=0&&he<b){var ye=p[K][re][he][X]+f[te][le][X];ye>ee&&(ee=ye,ne=re,ie=he)}}}_[K][ne][ie][X]+=H[K][j][G][X]}var Oe=d.write(T.util.toTypedArray(_,a.dtype),a.shape,a.dtype);return{dataId:Oe,shape:a.shape,dtype:a.dtype}}};var bz=cr(function(n,t){return n/t}),wz=Zr(T.Div,bz),Cd={kernelName:T.Div,backendName:"cpu",kernelFunc:wz};var Sz=$e(T.Elu,function(n){return n>=0?n:Math.exp(n)-1}),Lz={kernelName:T.Elu,backendName:"cpu",kernelFunc:Sz};var Iz=T.backend_util.ERF_P,Az=T.backend_util.ERF_A1,Tz=T.backend_util.ERF_A2,Nz=T.backend_util.ERF_A3,xz=T.backend_util.ERF_A4,Cz=T.backend_util.ERF_A5,Rz=$e(T.Erf,function(n){var t=Math.sign(n),e=Math.abs(n),i=1/(1+Iz*e);return t*(1-((((Cz*i+xz)*i+Nz)*i+Tz)*i+Az)*i*Math.exp(-e*e))}),Oz={kernelName:T.Erf,backendName:"cpu",kernelFunc:Rz};function f0(n,t,e){for(var i=n.shape,r=i[0],a=i[1],s=e.data.get(n.dataId),o=s.complexTensorInfos.real,l=s.complexTensorInfos.imag,u=[r,a],c=T.util.sizeFromShape(u),h=T.util.getTypedArrayFromDType("float32",c),d=T.util.getTypedArrayFromDType("float32",c),p=0;p<r;p++){for(var f=Td({inputs:{x:o},backend:e,attrs:{begin:[p,0],size:[1,a]}}),m=Td({inputs:{x:l},backend:e,attrs:{begin:[p,0],size:[1,a]}}),g=An({inputs:{real:f,imag:m},backend:e}),v=Ez(g,t,e),b=v.real,w=v.imag,S=T.backend_util.mergeRealAndImagArrays(b,w),L=0;L<a;L++){var x=T.backend_util.getComplexWithIndex(S,L);h[p*a+L]=x.real,d[p*a+L]=x.imag}e.disposeIntermediateTensorInfo(f),e.disposeIntermediateTensorInfo(m),e.disposeIntermediateTensorInfo(g)}var C=e.makeTensorInfo(u,"float32",h),R=e.makeTensorInfo(u,"float32",d),D=An({inputs:{real:C,imag:R},backend:e});return e.disposeIntermediateTensorInfo(C),e.disposeIntermediateTensorInfo(R),D}function Ez(n,t,e){var i=T.util.sizeFromShape(n.shape),r=e.data.get(n.dataId),a=e.data.get(r.complexTensorInfos.real.dataId).values,s=e.data.get(r.complexTensorInfos.imag.dataId).values;if(Dz(i)){var o=Rd(a,s,i,t,e),l=[n.shape[0],n.shape[1]];if(t){var u=e.makeTensorInfo(l,"float32",o.real),c=e.makeTensorInfo(l,"float32",o.imag),h=e.makeTensorInfo([],"float32",T.util.createScalarValue(i,"float32")),d=Jr({inputs:{x:h},backend:e}),p=Cd.kernelFunc({inputs:{a:u,b:h},backend:e}),f=Cd.kernelFunc({inputs:{a:c,b:d},backend:e}),m=e.data.get(p.dataId).values,g=e.data.get(f.dataId).values;return e.disposeIntermediateTensorInfo(u),e.disposeIntermediateTensorInfo(c),e.disposeIntermediateTensorInfo(h),e.disposeIntermediateTensorInfo(d),e.disposeIntermediateTensorInfo(p),e.disposeIntermediateTensorInfo(f),{real:m,imag:g}}return o}else{var v=T.backend_util.mergeRealAndImagArrays(a,s),b=kz(v,i,t);return T.backend_util.splitRealAndImagArrays(b)}}function Dz(n){return(n&n-1)===0}function Rd(n,t,e,i,r){if(e===1)return{real:n,imag:t};var a=T.backend_util.mergeRealAndImagArrays(n,t),s=e/2,o=T.backend_util.complexWithEvenIndex(a),l=o.real,u=o.imag,c=[l.length],h=r.makeTensorInfo(c,"float32",l),d=r.makeTensorInfo(c,"float32",u),p=An({inputs:{real:h,imag:d},backend:r}),f=T.backend_util.complexWithOddIndex(a),m=f.real,g=f.imag,v=[m.length],b=r.makeTensorInfo(v,"float32",m),w=r.makeTensorInfo(v,"float32",g),S=An({inputs:{real:b,imag:w},backend:r}),L=Rd(l,u,s,i,r),x=L.real,C=L.imag,R=[x.length],D=r.makeTensorInfo(R,"float32",x),k=r.makeTensorInfo(R,"float32",C),W=An({inputs:{real:D,imag:k},backend:r}),F=Rd(m,g,s,i,r),P=F.real,H=F.imag,_=[P.length],K=r.makeTensorInfo(_,"float32",P),j=r.makeTensorInfo(_,"float32",H),q=An({inputs:{real:K,imag:j},backend:r}),G=T.backend_util.exponents(e,i),Z=[G.real.length],X=r.makeTensorInfo(Z,"float32",G.real),ee=r.makeTensorInfo(Z,"float32",G.imag),ne=An({inputs:{real:X,imag:ee},backend:r}),ie=o0({inputs:{a:ne,b:q},backend:r}),te=Qw({inputs:{a:W,b:ie},backend:r}),re=h0({inputs:{a:W,b:ie},backend:r}),le=Ja({inputs:{input:te},backend:r}),he=Ja({inputs:{input:re},backend:r}),ye=Fo({inputs:{input:te},backend:r}),Oe=Fo({inputs:{input:re},backend:r}),ke=Qa({inputs:[le,he],backend:r,attrs:{axis:0}}),_e=Qa({inputs:[ye,Oe],backend:r,attrs:{axis:0}}),Me=r.data.get(ke.dataId).values,ht=r.data.get(_e.dataId).values;return r.disposeIntermediateTensorInfo(h),r.disposeIntermediateTensorInfo(d),r.disposeIntermediateTensorInfo(p),r.disposeIntermediateTensorInfo(b),r.disposeIntermediateTensorInfo(w),r.disposeIntermediateTensorInfo(S),r.disposeIntermediateTensorInfo(D),r.disposeIntermediateTensorInfo(k),r.disposeIntermediateTensorInfo(W),r.disposeIntermediateTensorInfo(K),r.disposeIntermediateTensorInfo(j),r.disposeIntermediateTensorInfo(q),r.disposeIntermediateTensorInfo(X),r.disposeIntermediateTensorInfo(ee),r.disposeIntermediateTensorInfo(ne),r.disposeIntermediateTensorInfo(ie),r.disposeIntermediateTensorInfo(te),r.disposeIntermediateTensorInfo(re),r.disposeIntermediateTensorInfo(le),r.disposeIntermediateTensorInfo(ye),r.disposeIntermediateTensorInfo(he),r.disposeIntermediateTensorInfo(Oe),r.disposeIntermediateTensorInfo(ke),r.disposeIntermediateTensorInfo(_e),{real:Me,imag:ht}}function kz(n,t,e){for(var i=new Float32Array(t*2),r=0;r<t;r++){for(var a=0,s=0,o=0;o<t;o++){var l=T.backend_util.exponent(r*o,t,e),u=T.backend_util.getComplexWithIndex(n,o);a+=u.real*l.real-u.imag*l.imag,s+=u.real*l.imag+u.imag*l.real}e&&(a/=t,s/=t),T.backend_util.assignToTypedArray(i,a,s,r)}return i}function Fz(n){var t=n.inputs,e=n.backend,i=t.input,r=T.util.sizeFromShape(i.shape),a=i.shape[i.shape.length-1],s=r/a,o=Ti({inputs:{x:i},backend:e,attrs:{shape:[s,a]}}),l=f0(o,!1,e),u=Ti({inputs:{x:l},backend:e,attrs:{shape:i.shape}});return e.disposeIntermediateTensorInfo(o),e.disposeIntermediateTensorInfo(l),u}var Wz={kernelName:T.FFT,backendName:"cpu",kernelFunc:Fz};var Uz={kernelName:T.FlipLeftRight,backendName:"cpu",kernelFunc:function(n){for(var t=n.inputs,e=n.attrs,i=n.backend,r=t.image,a=i,s=T.util.getTypedArrayFromDType(r.dtype,T.util.sizeFromShape(r.shape)),o=r.shape,l=o[0],u=o[1],c=o[2],h=o[3],d=a.data.get(r.dataId).values,p=0;p<l;p++)for(var f=p*c*u*h,m=0;m<u;m++)for(var g=m*(c*h),v=0;v<c;v++)for(var b=v*h,w=0;w<h;w++){var 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i=[];this.variableNames.forEach(function(a){i.push("float v"+a+" = get"+a+"AtOutCoords();")});var r=this.variableNames.map(function(a){return"v"+a}).join(" + ");this.userCode=`
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          }
        }
        setOutput(float(bestIndex));
      }
    `}return n}();function Y0(n,t){return["x","y","z","w","u","v"].slice(0,t).map(function(e){return n+"."+e})}function Jt(n,t){return t===1?[n]:Y0(n,t)}function H_(n,t){if(n===1)return"rc";for(var e="",i=0;i<n;i++)e+=t[i],i<n-1&&(e+=",");return e}function Wt(){var n,t,e,i,r,a,s,o,l,u;return N.env().getNumber("WEBGL_VERSION")===2?(n="#version 300 es",t="in",e="out",i="in",r="texture",a="outputColor",s="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),
          isnan_custom(val.y), isnan_custom(val.z), isnan_custom(val.w));
      }

      #define isnan(value) isnan_custom(value)
    `,l="",u=`
      #define round(value) newRound(value)
      int newRound(float value) {
        return int(floor(value + 0.5));
      }

      ivec4 newRound(vec4 value) {
        return ivec4(floor(value + vec4(0.5)));
      }
    `):(n="",t="attribute",e="varying",i="varying",r="texture2D",a="gl_FragColor",s="",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));
      }
    `,l=`
      uniform float INFINITY;

      bool isinf(float val) {
        return abs(val) == INFINITY;
      }
      bvec4 isinf(vec4 val) {
        return equal(abs(val), vec4(INFINITY));
      }
    `,u=`
      int round(float value) {
        return int(floor(value + 0.5));
      }

      ivec4 round(vec4 value) {
        return ivec4(floor(value + vec4(0.5)));
      }
    `),{version:n,attribute:t,varyingVs:e,varyingFs:i,texture2D:r,output:a,defineOutput:s,defineSpecialNaN:o,defineSpecialInf:l,defineRound:u}}function fr(n,t,e){e===void 0&&(e="index");var i=N.util.computeStrides(t);return i.map(function(r,a){var s="int "+n[a]+" = "+e+" / "+r,o=a===i.length-1?"int "+n[a+1]+" = "+e+" - "+n[a]+" * "+r:"index -= "+n[a]+" * "+r;return s+"; "+o+";"}).join("")}function Pd(n){var t=N.util.computeStrides(n).map(function(e){return e.toString()});return`
  int getFlatIndex(ivec3 coords) {
    return coords.x * `+t[0]+" + coords.y * "+t[1]+` + coords.z;
  }
`}var K0=`
  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;
  }
`;var j0=N.backend_util.getBroadcastDims;function J_(n,t,e,i){var r=[];n.forEach(function(f){var m=N.util.sizeFromShape(f.shapeInfo.logicalShape);f.shapeInfo.isUniform?r.push("uniform float "+f.name+(m>1?"["+m+"]":"")+";"):(r.push("uniform sampler2D "+f.name+";"),r.push("uniform int offset"+f.name+";"))});var a=r.join(`
`),s=n.map(function(f){return V_(f,t,i)}).join(`
`),o=t.texShape,l=Wt(),u=Y_(l),c,h,d=$_(l);t.isPacked?(c=q_(t.logicalShape,o),h=j_(l)):(c=G_(t.logicalShape,o),h=K_(l)),i&&(d+=X_);var p=[d,u,h,a,c,s,e].join(`
`);return p}function ra(n){var t=n.shapeInfo.logicalShape;switch(t.length){case 0:return Z_(n);case 1:return Q_(n);case 2:return eM(n);case 3:return tM(n);case 4:return nM(n);case 5:return iM(n);case 6:return rM(n);default:throw new Error(t.length+"-D input sampling is not yet supported")}}function $0(n){var t=n.shapeInfo.logicalShape;switch(t.length){case 0:return aM(n);case 1:return sM(n);case 2:return oM(n);case 3:return lM(n);default:return uM(n)}}function V_(n,t,e){e===void 0&&(e=!1);var i="";e?i+=$0(n):i+=ra(n);var r=n.shapeInfo.logicalShape,a=t.logicalShape;return r.length<=a.length&&(e?i+=cM(n,t):i+=hM(n,t)),i}function q_(n,t){switch(n.length){case 0:return X0();case 1:return dM(n,t);case 2:return mM(n,t);case 3:return pM(n,t);default:return fM(n,t)}}function G_(n,t){switch(n.length){case 0:return X0();case 1:return gM(n,t);case 2:return SM(n,t);case 3:return vM(n,t);case 4:return yM(n,t);case 5:return bM(n,t);case 6:return wM(n,t);default:throw new Error(n.length+"-D output sampling is not yet supported")}}function Y_(n){return`
    float sampleTexture(sampler2D textureSampler, vec2 uv) {
      return `+n.texture2D+`(textureSampler, uv).r;
    }
  `}function K_(n){return`
    void setOutput(float val) {
      `+n.output+` = vec4(val, 0, 0, 0);
    }
  `}function j_(n){return`
    void setOutput(vec4 val) {
      `+n.output+` = val;
    }
  `}function $_(n){var t=n.version+`
    precision highp float;
    precision highp int;
    precision highp sampler2D;
    `+n.varyingFs+` vec2 resultUV;
    `+n.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;
    `+n.defineSpecialNaN+`
    `+n.defineSpecialInf+`
    `+n.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);
    }

    `+LM+`
    `+IM+`
    `+AM+`
  `;return t}var LM=`
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);
}
`,IM=`
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);
}
`,AM=`
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);
}
`,X_=`
  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 X0(){return`
    int getOutputCoords() {
      return 0;
    }
  `}function dM(n,t){var e=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)];return e[0]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.x * `+e[1]+`.0);
      }
    `:e[1]===1?`
      int getOutputCoords() {
        return 2 * int(resultUV.y * `+e[0]+`.0);
      }
    `:`
    int getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+e[0]+", "+e[1]+`));
      return 2 * (resTexRC.x * `+e[1]+` + resTexRC.y);
    }
  `}function gM(n,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 pM(n,t){var e=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)],i=Math.ceil(n[2]/2),r=i*Math.ceil(n[1]/2);return`
    ivec3 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+e[0]+", "+e[1]+`));
      int index = resTexRC.x * `+e[1]+` + resTexRC.y;

      int b = index / `+r+`;
      index -= b * `+r+`;

      int r = 2 * (index / `+i+`);
      int c = imod(index, `+i+`) * 2;

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

      `+s+`

      int b = index / `+r+`;
      index -= b * `+r+`;

      int r = 2 * (index / `+i+`);
      int c = imod(index, `+i+`) * 2;

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

      int index = resTexRC.x * `+t[1]+` + resTexRC.y;

      `+e+`

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

      `+e+`

      ivec6 result = ivec6(r, c, d, d2, d3, d4);
      return result;
    }
  `}function mM(n,t){var e=[Math.ceil(t[0]/2),Math.ceil(t[1]/2)];if(N.util.arraysEqual(n,t))return`
      ivec2 getOutputCoords() {
        return 2 * ivec2(resultUV.yx * vec2(`+e[0]+", "+e[1]+`));
      }
    `;var i=Math.ceil(n[1]/2);return`
    ivec2 getOutputCoords() {
      ivec2 resTexRC = ivec2(resultUV.yx *
                             vec2(`+e[0]+", "+e[1]+`));

      int index = resTexRC.x * `+e[1]+` + resTexRC.y;
      int r = 2 * (index / `+i+`);
      int c = imod(index, `+i+`) * 2;

      return ivec2(r, c);
    }
  `}function SM(n,t){return N.util.arraysEqual(n,t)?`
      ivec2 getOutputCoords() {
        return ivec2(resultUV.yx * vec2(`+t[0]+", "+t[1]+`));
      }
    `:n[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);
      }
    `:n[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 / `+n[1]+`;
      int c = index - r * `+n[1]+`;
      return ivec2(r, c);
    }
  `}function mr(n){return"offset"+n}function aM(n){var t=n.name,e="get"+t.charAt(0).toUpperCase()+t.slice(1),i=Wt();return`
    vec4 `+e+`() {
      return `+i.texture2D+"("+t+`, halfCR);
    }
  `}function Z_(n){var t=n.name,e="get"+t.charAt(0).toUpperCase()+t.slice(1);if(n.shapeInfo.isUniform)return"float "+e+"() {return "+t+";}";var i=n.shapeInfo.texShape,r=i[0],a=i[1];if(r===1&&a===1)return`
      float `+e+`() {
        return sampleTexture(`+t+`, halfCR);
      }
    `;var s=n.shapeInfo.texShape,o=s[0],l=s[1],u=mr(t);return`
    float `+e+`() {
      vec2 uv = uvFromFlat(`+o+", "+l+", "+u+`);
      return sampleTexture(`+t+`, uv);
    }
  `}function sM(n){var t=n.name,e="get"+t.charAt(0).toUpperCase()+t.slice(1),i=n.shapeInfo.texShape,r=[Math.ceil(i[0]/2),Math.ceil(i[1]/2)],a=Wt();return`
    vec4 `+e+`(int index) {
      vec2 uv = packedUVfrom1D(
        `+r[0]+", "+r[1]+`, index);
      return `+a.texture2D+"("+t+`, uv);
    }
  `}function Q_(n){var t=n.name,e="get"+t.charAt(0).toUpperCase()+t.slice(1);if(n.shapeInfo.isUniform)return`
      float `+e+`(int index) {
        `+aa(n)+`
      }
    `;var i=n.shapeInfo.texShape,r=i[0],a=i[1];if(a===1&&r===1)return`
      float `+e+`(int index) {
        return sampleTexture(`+t+`, halfCR);
      }
    `;var s=mr(t);return a===1?`
      float `+e+`(int index) {
        vec2 uv = vec2(0.5, (float(index + `+s+") + 0.5) / "+r+`.0);
        return sampleTexture(`+t+`, uv);
      }
    `:r===1?`
      float `+e+`(int index) {
        vec2 uv = vec2((float(index + `+s+") + 0.5) / "+a+`.0, 0.5);
        return sampleTexture(`+t+`, uv);
      }
    `:`
    float `+e+`(int index) {
      vec2 uv = uvFromFlat(`+r+", "+a+", index + "+s+`);
      return sampleTexture(`+t+`, uv);
    }
  `}function oM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=n.shapeInfo.texShape,a=r[0],s=r[1],o=Wt();if(r!=null&&N.util.arraysEqual(t,r))return`
      vec4 `+i+`(int row, int col) {
        vec2 uv = (vec2(col, row) + halfCR) / vec2(`+s+".0, "+a+`.0);

        return `+o.texture2D+"("+e+`, uv);
      }
    `;var l=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)],u=Math.ceil(t[1]/2);return`
    vec4 `+i+`(int row, int col) {
      vec2 uv = packedUVfrom2D(`+u+", "+l[0]+", "+l[1]+`, row, col);
      return `+o.texture2D+"("+e+`, uv);
    }
  `}function eM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=n.shapeInfo.texShape;if(r!=null&&N.util.arraysEqual(t,r)){var a=r[0],s=r[1];return`
    float `+i+`(int row, int col) {
      vec2 uv = (vec2(col, row) + halfCR) / vec2(`+s+".0, "+a+`.0);
      return sampleTexture(`+e+`, uv);
    }
  `}var o=N.util.squeezeShape(t),l=o.newShape,u=o.keptDims,c=l;if(c.length<t.length){var h=sa(n,c),d=["row","col"];return`
      `+ra(h)+`
      float `+i+`(int row, int col) {
        return `+i+"("+oa(d,u)+`);
      }
    `}if(n.shapeInfo.isUniform)return`
      float `+i+`(int row, int col) {
        int index = round(dot(vec2(row, col), vec2(`+t[1]+`, 1)));
        `+aa(n)+`
      }
    `;var p=r[0],f=r[1],m=mr(e);return f===1?`
    float `+i+`(int row, int col) {
      float index = dot(vec3(row, col, `+m+"), vec3("+t[1]+`, 1, 1));
      vec2 uv = vec2(0.5, (index + 0.5) / `+p+`.0);
      return sampleTexture(`+e+`, uv);
    }
  `:p===1?`
    float `+i+`(int row, int col) {
      float index = dot(vec3(row, col, `+m+"), vec3("+t[1]+`, 1, 1));
      vec2 uv = vec2((index + 0.5) / `+f+`.0, 0.5);
      return sampleTexture(`+e+`, uv);
    }
  `:`
  float `+i+`(int row, int col) {
    // Explicitly use integer operations as dot() only works on floats.
    int index = row * `+t[1]+" + col + "+m+`;
    vec2 uv = uvFromFlat(`+p+", "+f+`, index);
    return sampleTexture(`+e+`, uv);
  }
`}function lM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=n.shapeInfo.texShape,a=[Math.ceil(r[0]/2),Math.ceil(r[1]/2)];if(t[0]===1){var s=t.slice(1),o=[1,2],l=sa(n,s),u=["b","row","col"];return`
        `+$0(l)+`
        vec4 `+i+`(int b, int row, int col) {
          return `+i+"("+oa(u,o)+`);
        }
      `}var c=a[0],h=a[1],d=Math.ceil(t[2]/2),p=d*Math.ceil(t[1]/2),f=Wt();return`
    vec4 `+i+`(int b, int row, int col) {
      vec2 uv = packedUVfrom3D(
        `+c+", "+h+", "+p+", "+d+`, b, row, col);
      return `+f.texture2D+"("+e+`, uv);
    }
  `}function tM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t[1]*t[2],a=t[2],s=N.util.squeezeShape(t),o=s.newShape,l=s.keptDims,u=o;if(u.length<t.length){var c=sa(n,u),h=["row","col","depth"];return`
        `+ra(c)+`
        float `+i+`(int row, int col, int depth) {
          return `+i+"("+oa(h,l)+`);
        }
      `}if(n.shapeInfo.isUniform)return`
      float `+i+`(int row, int col, int depth) {
        int index = round(dot(vec3(row, col, depth),
                          vec3(`+r+", "+a+`, 1)));
        `+aa(n)+`
      }
    `;var d=n.shapeInfo.texShape,p=d[0],f=d[1],m=n.shapeInfo.flatOffset;if(f===r&&m==null)return`
        float `+i+`(int row, int col, int depth) {
          float texR = float(row);
          float texC = dot(vec2(col, depth), vec2(`+a+`, 1));
          vec2 uv = (vec2(texC, texR) + halfCR) /
                     vec2(`+f+".0, "+p+`.0);
          return sampleTexture(`+e+`, uv);
        }
      `;if(f===a&&m==null)return`
    float `+i+`(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(`+f+".0, "+p+`.0);
      return sampleTexture(`+e+`, uv);
    }
  `;var g=mr(e);return`
      float `+i+`(int row, int col, int depth) {
        // Explicitly use integer operations as dot() only works on floats.
        int index = row * `+r+" + col * "+a+" + depth + "+g+`;
        vec2 uv = uvFromFlat(`+p+", "+f+`, index);
        return sampleTexture(`+e+`, uv);
      }
  `}function uM(n){for(var t=n.shapeInfo.logicalShape,e=t.length,i=n.name,r="get"+i.charAt(0).toUpperCase()+i.slice(1),a=n.shapeInfo.texShape,s=[Math.ceil(a[0]/2),Math.ceil(a[1]/2)],o=s[0],l=s[1],u=Math.ceil(t[e-1]/2),c=u*Math.ceil(t[e-2]/2),h="int b, int row, int col",d="b * "+c+" + (row / 2) * "+u+" + (col / 2)",p=2;p<e-1;p++)h="int b"+p+", "+h,c*=t[e-p-1],d="b"+p+" * "+c+" + "+d;var f=Wt();return`
    vec4 `+r+"("+h+`) {
      int index = `+d+`;
      int texR = index / `+l+`;
      int texC = index - texR * `+l+`;
      vec2 uv = (vec2(texC, texR) + halfCR) / vec2(`+l+", "+o+`);
      return `+f.texture2D+"("+i+`, uv);
    }
  `}function nM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t[3],a=t[2]*r,s=t[1]*a,o=N.util.squeezeShape(t),l=o.newShape,u=o.keptDims;if(l.length<t.length){var c=sa(n,l),h=["row","col","depth","depth2"];return`
      `+ra(c)+`
      float `+i+`(int row, int col, int depth, int depth2) {
        return `+i+"("+oa(h,u)+`);
      }
    `}if(n.shapeInfo.isUniform)return`
      float `+i+`(int row, int col, int depth, int depth2) {
        int index = round(dot(vec4(row, col, depth, depth2),
                          vec4(`+s+", "+a+", "+r+`, 1)));
        `+aa(n)+`
      }
    `;var d=n.shapeInfo.flatOffset,p=n.shapeInfo.texShape,f=p[0],m=p[1];if(m===s&&d==null)return`
      float `+i+`(int row, int col, int depth, int depth2) {
        float texR = float(row);
        float texC =
            dot(vec3(col, depth, depth2),
                vec3(`+a+", "+r+`, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+m+".0, "+f+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;if(m===r&&d==null)return`
      float `+i+`(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(`+m+".0, "+f+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;var g=mr(e);return`
    float `+i+`(int row, int col, int depth, int depth2) {
      // Explicitly use integer operations as dot() only works on floats.
      int index = row * `+s+" + col * "+a+` +
          depth * `+r+` + depth2;
      vec2 uv = uvFromFlat(`+f+", "+m+", index + "+g+`);
      return sampleTexture(`+e+`, uv);
    }
  `}function iM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=t[4],a=t[3]*r,s=t[2]*a,o=t[1]*s,l=N.util.squeezeShape(t),u=l.newShape,c=l.keptDims;if(u.length<t.length){var h=sa(n,u),d=["row","col","depth","depth2","depth3"];return`
      `+ra(h)+`
      float `+i+`(int row, int col, int depth, int depth2, int depth3) {
        return `+i+"("+oa(d,c)+`);
      }
    `}if(n.shapeInfo.isUniform)return`
      float `+i+`(int row, int col, int depth, int depth2, int depth3) {
        float index = dot(
          vec4(row, col, depth, depth2),
          vec4(`+o+", "+s+", "+a+", "+r+`)) +
          depth3;
        `+aa(n)+`
      }
    `;var p=n.shapeInfo.flatOffset,f=n.shapeInfo.texShape,m=f[0],g=f[1];if(g===o&&p==null)return`
      float `+i+`(int row, int col, int depth, int depth2, int depth3) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
                         vec4(`+s+", "+a+", "+r+`, 1));
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+g+".0, "+m+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;if(g===r&&p==null)return`
      float `+i+`(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(`+g+".0, "+m+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;var v=mr(e);return`
    float `+i+`(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 * "+s+" + depth * "+a+` +
          depth2 * `+r+" + depth3 + "+v+`;
      vec2 uv = uvFromFlat(`+m+", "+g+`, index);
      return sampleTexture(`+e+`, uv);
    }
  `}function rM(n){var t=n.shapeInfo.logicalShape,e=n.name,i="get"+e.charAt(0).toUpperCase()+e.slice(1),r=N.util.squeezeShape(t),a=r.newShape,s=r.keptDims;if(a.length<t.length){var o=sa(n,a),l=["row","col","depth","depth2","depth3","depth4"];return`
      `+ra(o)+`
      float `+i+`(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        return `+i+"("+oa(l,s)+`);
      }
    `}var u=t[5],c=t[4]*u,h=t[3]*c,d=t[2]*h,p=t[1]*d;if(n.shapeInfo.isUniform)return`
      float `+i+`(int row, int col, int depth,
                  int depth2, int depth3, int depth4) {
        int index = round(dot(
          vec4(row, col, depth, depth2),
          vec4(`+p+", "+d+", "+h+", "+c+`)) +
          dot(
            vec2(depth3, depth4),
            vec2(`+u+`, 1)));
        `+aa(n)+`
      }
    `;var f=n.shapeInfo.flatOffset,m=n.shapeInfo.texShape,g=m[0],v=m[1];if(v===p&&f==null)return`
      float `+i+`(int row, int col, int depth,
                    int depth2, int depth3, int depth4) {
        int texR = row;
        float texC = dot(vec4(col, depth, depth2, depth3),
          vec4(`+d+", "+h+", "+c+", "+u+`)) +
               float(depth4);
        vec2 uv = (vec2(texC, texR) + halfCR) /
                   vec2(`+v+".0, "+g+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;if(v===u&&f==null)return`
      float `+i+`(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(`+v+".0, "+g+`.0);
        return sampleTexture(`+e+`, uv);
      }
    `;var b=mr(e);return`
    float `+i+`(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 * `+p+" + col * "+d+" + depth * "+h+` +
          depth2 * `+c+" + depth3 * "+u+" + depth4 + "+b+`;
      vec2 uv = uvFromFlat(`+g+", "+v+`, index);
      return sampleTexture(`+e+`, uv);
    }
  `}function aa(n){var t=n.name,e=N.util.sizeFromShape(n.shapeInfo.logicalShape);return e<2?"return "+t+";":`
    for (int i = 0; i < `+e+`; i++) {
      if (i == index) {
        return `+t+`[i];
      }
    }
  `}function cM(n,t){var e=n.name,i=e.charAt(0).toUpperCase()+e.slice(1),r="get"+i+"AtOutCoords",a=n.shapeInfo.logicalShape.length,s=t.logicalShape.length,o=j0(n.shapeInfo.logicalShape,t.logicalShape),l=Ze(s),u=s-a,c,h=["x","y","z","w","u","v"];a===0?c="":s<2&&o.length>=1?c="coords = 0;":c=o.map(function(S){return"coords."+h[S+u]+" = 0;"}).join(`
`);var d="";s<2&&a>0?d="coords":d=n.shapeInfo.logicalShape.map(function(S,L){return"coords."+h[L+u]}).join(", ");var p="return outputValue;",f=N.util.sizeFromShape(n.shapeInfo.logicalShape),m=f===1,g=N.util.sizeFromShape(t.logicalShape),v=g===1;if(a===1&&!m&&!v)p=`
      return vec4(outputValue.xy, outputValue.xy);
    `;else if(m&&!v)s===1?p=`
        return vec4(outputValue.x, outputValue.x, 0., 0.);
      `:p=`
        return vec4(outputValue.x);
      `;else if(o.length){var b=a-2,w=a-1;o.indexOf(b)>-1&&o.indexOf(w)>-1?p="return vec4(outputValue.x);":o.indexOf(b)>-1?p="return vec4(outputValue.x, outputValue.y, outputValue.x, outputValue.y);":o.indexOf(w)>-1&&(p="return vec4(outputValue.xx, outputValue.zz);")}return`
    vec4 `+r+`() {
      `+l+` coords = getOutputCoords();
      `+c+`
      vec4 outputValue = get`+i+"("+d+`);
      `+p+`
    }
  `}function hM(n,t){var e=n.name,i=e.charAt(0).toUpperCase()+e.slice(1),r="get"+i+"AtOutCoords",a=t.texShape,s=n.shapeInfo.texShape,o=n.shapeInfo.logicalShape.length,l=t.logicalShape.length;if(!n.shapeInfo.isUniform&&o===l&&n.shapeInfo.flatOffset==null&&N.util.arraysEqual(s,a))return`
      float `+r+`() {
        return sampleTexture(`+e+`, resultUV);
      }
    `;var u=Ze(l),c=j0(n.shapeInfo.logicalShape,t.logicalShape),h=l-o,d,p=["x","y","z","w","u","v"];o===0?d="":l<2&&c.length>=1?d="coords = 0;":d=c.map(function(m){return"coords."+p[m+h]+" = 0;"}).join(`
`);var f="";return l<2&&o>0?f="coords":f=n.shapeInfo.logicalShape.map(function(m,g){return"coords."+p[g+h]}).join(", "),`
    float `+r+`() {
      `+u+` coords = getOutputCoords();
      `+d+`
      return get`+i+"("+f+`);
    }
  `}function Ze(n){if(n<=1)return"int";if(n===2)return"ivec2";if(n===3)return"ivec3";if(n===4)return"ivec4";if(n===5)return"ivec5";if(n===6)return"ivec6";throw Error("GPU for rank "+n+" is not yet supported")}function sa(n,t){var e=JSON.parse(JSON.stringify(n));return e.shapeInfo.logicalShape=t,e}function oa(n,t){return t.map(function(e){return n[e]}).join(", ")}var TM=function(){function n(t,e,i,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,N.util.assert(t.length>2,function(){return"Packed arg"+(i.charAt(0).toUpperCase()+i.slice(1))+" supports only inputs with rank above 2."});var a=t[t.length-1],s=Math.ceil(a/e);this.outputShape=t.slice(0,-1),s>1&&this.outputShape.push(s),r||this.variableNames.push("bestIndicesA");var o=this.outputShape,l=o.length,u=Ze(l),c=Jt("coords",l),h,d;if(s===1){d=l+1;var p=Ze(d);h=`
        `+p+" sourceLocR = "+p+"("+c.join()+`, 0);
        ++`+c[l-1]+`;
        `+p+" sourceLocG = "+p+"("+c.join()+`, 0);
        ++`+c[l-2]+`;
        `+p+" sourceLocA = "+p+"("+c.join()+`, 0);
        --`+c[l-1]+`;
        `+p+" sourceLocB = "+p+"("+c.join()+`, 0);
        --`+c[l-2]+";"}else d=l,h=`
        `+u+` sourceLocR = coords;
        ++`+c[l-1]+`;
        `+u+` sourceLocG = coords;
        ++`+c[l-2]+`;
        `+u+` sourceLocA = coords;
        --`+c[l-1]+`;
        `+u+` sourceLocB = coords;
        --`+c[l-2]+";";var f=["x","y","z","w","u","v"].slice(0,d),m="."+f[d-1],g=f.map(function(D){return"int "+D}),v=Jt("sourceLocR",d-1).concat("inIdx.r"),b=Jt("sourceLocG",d-1).concat("inIdx.g"),w=Jt("sourceLocB",d-1).concat("inIdx.b"),S=Jt("sourceLocA",d-1).concat("inIdx.a"),L=i==="max"?"greaterThan":"lessThan",x=r?"":`
          inIdx = round(vec4(getBestIndicesAChannel(`+v.join()+`),
                             getBestIndicesAChannel(`+b.join()+`),
                             getBestIndicesAChannel(`+w.join()+`),
                             getBestIndicesAChannel(`+S.join()+")));",C=`vec4(
            getAChannel(`+v.join()+`),
            hasNextCol ? getAChannel(`+b.join()+`) : 0.,
            hasNextRow ? getAChannel(`+w.join()+`) : 0.,
            hasNextRow && hasNextCol ? getAChannel(`+S.join()+") : 0.)",R=r?"":`
      float getBestIndicesAChannel(`+g.join()+`) {
        return getChannel(getBestIndicesA(`+f.join()+`),
                                          vec2(`+f.slice(-2).join()+`));
      }`;this.userCode=`
      float getAChannel(`+g.join()+`) {
        return getChannel(getA(`+f.join()+`),
                               vec2(`+f.slice(-2).join()+`));
      }
      `+R+`
      void main() {
        `+u+` coords = getOutputCoords();
        bool hasNextCol = `+c[l-1]+" < "+(o[l-1]-1)+`;
        bool hasNextRow = `+c[l-2]+" < "+(o[l-2]-1)+`;
        `+h+`
        ivec4 srcIdx = ivec4(sourceLocR`+m+", sourceLocG"+m+`,
          sourceLocB`+m+", sourceLocA"+m+") * "+e+`;
        ivec4 inIdx = srcIdx;
        vec4 bestIndex = vec4(inIdx);
        vec4 bestValue = `+C+`;

        for (int i = 0; i < `+e+`; i++) {
          inIdx = srcIdx;
          `+x+`
          vec4 candidate = `+C+`;
          bvec4 nan = isnan(candidate);
          bvec4 replace = bvec4(
            vec4(`+L+`(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);
      }
    `}return n}();var NM=function(){function n(t){this.variableNames=["dy"],this.outputShape=t.inShape;var e=t.filterHeight,i=t.filterWidth,r=t.strideHeight,a=t.strideWidth,s=t.dilationHeight,o=t.dilationWidth,l=t.effectiveFilterHeight,u=t.effectiveFilterWidth,c=l-1-t.padInfo.top,h=u-1-t.padInfo.left,d=1/(e*i);this.userCode=`
      const ivec2 pads = ivec2(`+c+", "+h+`);
      const float avgMultiplier = float(`+d+`);

      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 < `+l+`;
            wR += `+s+`) {
          float dyR = float(dyRCorner + wR) / `+r+`.0;

          if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < `+u+`;
            wC+= `+o+`) {
            float dyC = float(dyCCorner + wC) / `+a+`.0;

            if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

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

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

      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 < `+h+`;
            wD += `+l+`) {
          float dyD = float(dyDCorner + wD) / `+a+`.0;

          if (dyD < 0.0 || dyD >= `+t.outDepth+`.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < `+d+`;
              wR += `+u+`) {
            float dyR = float(dyRCorner + wR) / `+s+`.0;

            if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < `+p+`;
                wC += `+c+`) {
              float dyC = float(dyCCorner + wC) / `+o+`.0;

              if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

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

              dotProd += dyValue * avgMultiplier;
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}();var J0={REAL:"return areal * breal - aimag * bimag;",IMAG:"return areal * bimag + aimag * breal;"},Z0=function(){function n(t,e,i){this.variableNames=["AReal","AImag","BReal","BImag"],this.outputShape=N.backend_util.assertAndGetBroadcastShape(e,i),this.userCode=`
      float binaryOpComplex(
          float areal, float aimag, float breal, float bimag) {
        `+t+`
      }

      void main() {
        float areal = getARealAtOutCoords();
        float aimag = getAImagAtOutCoords();
        float breal = getBRealAtOutCoords();
        float bimag = getBImagAtOutCoords();
        setOutput(binaryOpComplex(areal, aimag, breal, bimag));
      }
    `}return n}();var Q0=`
  if (isnan(a)) return a;
  if (isnan(b)) return b;
`,_d="return a + b;",Md="return a - b;",eS="return a * b;",CM=`
  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;
  }
`,RM=`
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);
`,OM="return float(a == b);",EM="return float(a != b);",DM="return float(a < b);",kM="return float(a <= b);",FM="return float(a > b);",WM="return float(a >= b);",UM="return float(a >= 1.0 && b >= 1.0);",BM="return float(a >= 1.0 || b >= 1.0);",zM=Q0+`
  return max(a, b);
`,PM=Q0+`
  return min(a, b);
`,_M=`if (b == 0.0) return NAN;
  return mod(a, b);`,MM="return (b >= 1.0) ? a : a * (b + 1.0);",tS="return (a < 0.) ? b * a : a;",wt=function(){function n(t,e,i){this.variableNames=["A","B"],this.outputShape=N.backend_util.assertAndGetBroadcastShape(e,i),this.userCode=`
      float binaryOperation(float a, float b) {
        `+t+`
      }

      void main() {
        float a = getAAtOutCoords();
        float b = getBAtOutCoords();
        setOutput(binaryOperation(a, b));
      }
    `}return n}();var Vo=`
  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;
`,HM=`
  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);
`,VM=`
  // 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));
  `+Vo+`
  return result;
`,nS=`
  vec4 aLessThanZero = vec4(lessThan(a, vec4(0.)));
  return (aLessThanZero * (b * a)) + ((vec4(1.0) - aLessThanZero) * a);
`,qM=`
  vec4 bGTEZero = vec4(greaterThanEqual(b, vec4(0.)));
  return (bGTEZero * a) + ((vec4(1.0) - bGTEZero) * (a * (b + vec4(1.0))));
`,GM=`
  return vec4(equal(a, b));
`,YM=`
  return vec4(notEqual(a, b));
`,KM=`
  return vec4(lessThan(a, b));
`,jM=`
  return vec4(lessThanEqual(a, b));
`,$M=`
  return vec4(greaterThan(a, b));
`,XM=`
  return vec4(greaterThanEqual(a, b));
`,JM=`
  return vec4(
    vec4(greaterThanEqual(a, vec4(1.0))) *
    vec4(greaterThanEqual(b, vec4(1.0))));
`,ZM=`
  return min(
    vec4(greaterThanEqual(a, vec4(1.0))) +
    vec4(greaterThanEqual(b, vec4(1.0))),
    vec4(1.0));
`,QM=`
  vec4 result = vec4(max(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+Vo+`
  return result;
`,e5=`
  vec4 result = vec4(min(a, b));
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+Vo+`
  return result;
`,t5=`
  vec4 result = mod(a, b);
  vec4 isNaN = vec4(equal(b, vec4(0.0)));
  `+Vo+`
  return result;
`,Ni=function(){function n(t,e,i,r){r===void 0&&(r=!1),this.variableNames=["A","B"],this.supportsBroadcasting=!0,this.packedInputs=!0,this.packedOutput=!0,this.outputShape=N.backend_util.assertAndGetBroadcastShape(e,i);var a=this.outputShape.length,s="";if(r)if(a===0||N.util.sizeFromShape(this.outputShape)===1)s=`
          result.y = 0.;
          result.z = 0.;
          result.w = 0.;
        `;else{var o=Ze(a);if(s=`
          `+o+` coords = getOutputCoords();
        `,a===1)s+=`
            result.y = (coords + 1) >= `+this.outputShape[0]+` ? 0. : result.y;
            result.z = 0.;
            result.w = 0.;
          `;else{var l=Jt("coords",a);s+=`
            bool nextRowOutOfBounds =
              (`+l[a-2]+" + 1) >= "+this.outputShape[a-2]+`;
            bool nextColOutOfBounds =
              (`+l[a-1]+" + 1) >= "+this.outputShape[a-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) {
        `+t+`
      }

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

        vec4 result = binaryOperation(a, b);
        `+s+`

        setOutput(result);
      }
    `}return n}();var n5=function(){function n(t){this.variableNames=["A"],this.outputShape=t,this.userCode=`
      uniform float minVal;
      uniform float maxVal;

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

        setOutput(clamp(value, minVal, maxVal));
      }
    `}return n.prototype.getCustomSetupFunc=function(t,e){var i=this;return function(r,a){i.minLoc==null&&(i.minLoc=r.getUniformLocationNoThrow(a,"minVal"),i.maxLoc=r.getUniformLocationNoThrow(a,"maxVal")),r.gl.uniform1f(i.minLoc,t),r.gl.uniform1f(i.maxLoc,e)}},n}();var i5=function(){function n(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,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)));
      }
    `}return n.prototype.getCustomSetupFunc=function(t,e){var i=this;return function(r,a){i.minLoc==null&&(i.minLoc=r.getUniformLocationNoThrow(a,"minVal"),i.maxLoc=r.getUniformLocationNoThrow(a,"maxVal")),r.gl.uniform1f(i.minLoc,t),r.gl.uniform1f(i.maxLoc,e)}},n}();var r5=function(){function n(t){this.variableNames=["real","imag"],this.outputShape=t,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))
        );
      }
    `}return n}();var a5=function(){function n(t){this.outputShape=[],this.outputShape=N.backend_util.computeOutShape(t,1),this.variableNames=t.map(function(l,u){return"T"+u});var e=new Array(t.length-1);e[0]=t[0][1];for(var i=1;i<e.length;i++)e[i]=e[i-1]+t[i][1];for(var r=["if (yC < "+e[0]+") setOutput(getT0(yR, yC));"],i=1;i<e.length;i++){var a=e[i-1];r.push("else if (yC < "+e[i]+") "+("setOutput(getT"+i+"(yR, yC-"+a+"));"))}var s=e.length,o=e[e.length-1];r.push("else setOutput(getT"+s+"(yR, yC-"+o+"));"),this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int yR = coords.x;
        int yC = coords.y;

        `+r.join(`
        `)+`
      }
    `}return n}();var s5=function(){function n(t,e){this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[],this.outputShape=N.backend_util.computeOutShape(t,e);var i=this.outputShape,r=i.length,a=Ze(r),s=Jt("coords",r),o=["x","y","z","w","u","v"].slice(0,r);this.variableNames=t.map(function(v,b){return"T"+b});var l=new Array(t.length-1);l[0]=t[0][e];for(var u=1;u<l.length;u++)l[u]=l[u-1]+t[u][e];for(var c=o[e],h=o.slice(-2),d=o.join(),p="if ("+c+" < "+l[0]+`) {
        return getChannel(
            getT0(`+d+"), vec2("+h.join()+`));
        }`,u=1;u<l.length;u++){var f=l[u-1];p+=`
        if (`+c+" < "+l[u]+"  && "+c+" >= "+l[u-1]+`) {
          return getChannel(
            getT`+u+"("+qo(o,c,f)+`),
            vec2(`+qo(h,c,f)+`));
        }`}var m=l.length,g=l[l.length-1];p+=`
        return getChannel(
          getT`+m+"("+qo(o,c,g)+`),
          vec2(`+qo(h,c,g)+"));",this.userCode=`
      float getValue(`+o.map(function(v){return"int "+v})+`) {
        `+p+`
      }

      void main() {
        `+a+` coords = getOutputCoords();
        vec4 result = vec4(getValue(`+s+`), 0., 0., 0.);

        `+s[r-1]+" = "+s[r-1]+` + 1;
        if (`+s[r-1]+" < "+i[r-1]+`) {
          result.g = getValue(`+s+`);
        }

        `+s[r-2]+" = "+s[r-2]+` + 1;
        if (`+s[r-2]+" < "+i[r-2]+`) {
          result.a = getValue(`+s+`);
        }

        `+s[r-1]+" = "+s[r-1]+` - 1;
        if (`+s[r-2]+" < "+i[r-2]+` &&
            `+s[r-1]+" < "+i[r-1]+`) {
          result.b = getValue(`+s+`);
        }
        setOutput(result);
      }
    `}return n}();function qo(n,t,e){var i=n.indexOf(t),r=n.map(function(a,s){return s===i?a+" - "+e:a});return r.join()}var o5=function(){function n(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,i=t.strideWidth,r=t.padInfo.top,a=t.padInfo.left,s=t.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 < `+t.batchSize+`; b++) {
          for (int yR = 0; yR < `+t.outHeight+`; yR++) {
            int xR = wR + yR * `+e+" - "+r+`;

            if (xR < 0 || xR >= `+t.inHeight+`) {
              continue;
            }

            for (int yC = 0; yC < `+t.outWidth+`; yC++) {
              int xC = wC + yC * `+i+" - "+a+`;

              if (xC < 0 || xC >= `+t.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);
      }
    `}return n}(),l5=function(){function n(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,i=t.filterWidth,r=t.strideHeight,a=t.strideWidth,s=t.dataFormat==="channelsLast",o=e-1-t.padInfo.top,l=i-1-t.padInfo.left,u=s?1:2,c=s?2:3,h=s?3:1;this.userCode=`
      const ivec2 pads = ivec2(`+o+", "+l+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d1 = coords[`+h+`];

        ivec2 dyCorner = ivec2(coords[`+u+"], coords["+c+`]) - 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 < `+e+`; wR++) {
          float dyR = float(dyRCorner + wR) / `+r+`.0;

          if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = `+e+` - 1 - wR;

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

            if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = `+i+` - 1 - wC;

            for (int d2 = 0; d2 < `+t.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);
      }
    `}return n}(),u5=function(){function n(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideDepth,i=t.strideHeight,r=t.strideWidth,a=t.padInfo.front,s=t.padInfo.top,o=t.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 < `+t.batchSize+`; b++) {
          for (int yF = 0; yF < `+t.outDepth+`; yF++) {
            int xF = wF + yF * `+e+" - "+a+`;

            if (xF < 0 || xF >= `+t.inDepth+`) {
              continue;
            }

            for (int yR = 0; yR < `+t.outHeight+`; yR++) {
              int xR = wR + yR * `+i+" - "+s+`;

              if (xR < 0 || xR >= `+t.inHeight+`) {
                continue;
              }

              for (int yC = 0; yC < `+t.outWidth+`; yC++) {
                int xC = wC + yC * `+r+" - "+o+`;

                if (xC < 0 || xC >= `+t.inWidth+`) {
                  continue;
                }

                float dyValue = getDy(b, yF, yR, yC, d2);
                float xValue = getX(b, xF, xR, xC, d1);
                dotProd += (xValue * dyValue);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}(),c5=function(){function n(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterDepth,i=t.filterHeight,r=t.filterWidth,a=t.strideDepth,s=t.strideHeight,o=t.strideWidth,l=e-1-t.padInfo.front,u=i-1-t.padInfo.top,c=r-1-t.padInfo.left;this.userCode=`
      const ivec3 pads = ivec3(`+l+", "+u+", "+c+`);

      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 < `+e+`; wF++) {
          float dyF = float(dyFCorner + wF) / `+a+`.0;

          if (dyF < 0.0 || dyF >= `+t.outDepth+`.0 || fract(dyF) > 0.0) {
            continue;
          }
          int idyF = int(dyF);

          int wFPerm = `+e+` - 1 - wF;

          for (int wR = 0; wR < `+i+`; wR++) {
            float dyR = float(dyRCorner + wR) / `+s+`.0;

            if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 ||
              fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            int wRPerm = `+i+` - 1 - wR;

            for (int wC = 0; wC < `+r+`; wC++) {
              float dyC = float(dyCCorner + wC) / `+o+`.0;

              if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              int wCPerm = `+r+` - 1 - wC;

              for (int d2 = 0; d2 < `+t.outChannels+`; d2++) {
                float xValue = getDy(batch, idyF, idyR, idyC, d2);
                float wValue = getW(wFPerm, wRPerm, wCPerm, d1, d2);
                dotProd += xValue * wValue;
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}();var h5=function(){function n(t){this.variableNames=["x","dy"],this.outputShape=t.filterShape;var e=t.strideHeight,i=t.strideWidth,r=t.padInfo.top,a=t.padInfo.left,s=t.outChannels/t.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 < `+t.batchSize+`; b++) {
          for (int yR = 0; yR < `+t.outHeight+`; yR++) {
            int xR = wR + yR * `+e+" - "+r+`;

            if (xR < 0 || xR >= `+t.inHeight+`) {
              continue;
            }

            for (int yC = 0; yC < `+t.outWidth+`; yC++) {
              int xC = wC + yC * `+i+" - "+a+`;

              if (xC < 0 || xC >= `+t.inWidth+`) {
                continue;
              }

              float dyValue = getDy(b, yR, yC, d2);
              float xValue = getX(b, xR, xC, d1);
              dotProd += (xValue * dyValue);
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}(),d5=function(){function n(t){this.variableNames=["dy","W"],this.outputShape=t.inShape;var e=t.filterHeight,i=t.filterWidth,r=t.strideHeight,a=t.strideWidth,s=e-1-t.padInfo.top,o=i-1-t.padInfo.left,l=t.outChannels/t.inChannels;this.userCode=`
      const ivec2 pads = ivec2(`+s+", "+o+`);

      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 < `+e+`; wR++) {
          float dyR = float(dyRCorner + wR) / `+r+`.0;

          if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          int wRPerm = `+e+` - 1 - wR;

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

            if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                fract(dyC) > 0.0) {
              continue;
            }
            int idyC = int(dyC);

            int wCPerm = `+i+` - 1 - wC;

            // TO DO: Vec4 over the channelMul
            for (int dm = 0; dm < `+l+`; dm++) {
              int d2 = d1 * `+l+` + dm;
              float xValue = getDy(batch, idyR, idyC, d2);
              float wValue = getW(wRPerm, wCPerm, d1, dm);
              dotProd += xValue * wValue;
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}();var iS=function(){function n(t,e,i,r){e===void 0&&(e=!1),i===void 0&&(i=null),r===void 0&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var a=t.padInfo.top,s=t.padInfo.left,o=t.strideHeight,l=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,h=t.filterHeight,d=t.filterWidth,p=Math.floor(t.inChannels/4)*4,f=t.inChannels%4,m=t.dataFormat==="channelsLast",g=m?1:2,v=m?2:3,b=m?3:1,w="",S="";i&&(r?w=`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          `+i+`
        }`:w=`
          float activation(float x) {
            `+i+`
          }
        `,S="result = activation(result);");var L=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+w+`

      const ivec2 strides = ivec2(`+o+", "+l+`);
      const ivec2 pads = ivec2(`+a+", "+s+`);

      void main() {
        ivec4 coords = getOutputCoords();
        int batch = coords[0];
        int d2 = coords[`+b+`];

        ivec2 xRCCorner =
            ivec2(coords[`+g+"], coords["+v+`]) * 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 < `+h+`; wR++) {
          int xR = xRCorner + wR * `+u+`;

          if (xR < 0 || xR >= `+t.inHeight+`) {
            continue;
          }

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

            if (xC < 0 || xC >= `+t.inWidth+`) {
              continue;
            }

            for (int d1 = 0; d1 < `+p+`; 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 (`+m+`) {
                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 (`+(f===1)+`) {

              if (`+m+`) {
                dotProd +=
                    getX(batch, xR, xC, `+p+`) *
                    getW(wR, wC, `+p+`, d2);
              } else {
                dotProd +=
                    getX(batch, `+p+`, xR, xC) *
                    getW(wR, wC, `+p+`, d2);
              }

            } else if (`+(f===2)+`) {
              vec2 wValues = vec2(
                getW(wR, wC, `+p+`, d2),
                getW(wR, wC, `+p+` + 1, d2)
              );

              if (`+m+`) {
                vec2 xValues = vec2(
                  getX(batch, xR, xC, `+p+`),
                  getX(batch, xR, xC, `+p+` + 1)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec2 xValues = vec2(
                  getX(batch, `+p+`, xR, xC),
                  getX(batch, `+p+` + 1, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            } else if (`+(f===3)+`) {
              vec3 wValues = vec3(
                getW(wR, wC, `+p+`, d2),
                getW(wR, wC, `+p+` + 1, d2),
                getW(wR, wC, `+p+` + 2, d2)
              );

              if (`+m+`) {
                vec3 xValues = vec3(
                  getX(batch, xR, xC, `+p+`),
                  getX(batch, xR, xC, `+p+` + 1),
                  getX(batch, xR, xC, `+p+` + 2)
                );
                dotProd += dot(xValues, wValues);
              } else {
                vec3 xValues = vec3(
                  getX(batch, `+p+`, xR, xC),
                  getX(batch, `+p+` + 1, xR, xC),
                  getX(batch, `+p+` + 2, xR, xC)
                );
                dotProd += dot(xValues, wValues);
              }

            }
          }
        }

        float result = dotProd;
        `+L+`
        `+S+`
        setOutput(result);
      }
    `}return n}(),p5=function(){function n(t){this.variableNames=["x","W"],this.outputShape=t.outShape;var e=t.padInfo.front,i=t.padInfo.top,r=t.padInfo.left,a=t.strideDepth,s=t.strideHeight,o=t.strideWidth,l=t.dilationDepth,u=t.dilationHeight,c=t.dilationWidth,h=t.filterDepth,d=t.filterHeight,p=t.filterWidth,f=Math.floor(t.inChannels/4)*4,m=t.inChannels%4;this.userCode=`
      const ivec3 strides = ivec3(`+a+", "+s+", "+o+`);
      const ivec3 pads = ivec3(`+e+", "+i+", "+r+`);

      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 < `+h+`; wF++) {
          int xF = xFCorner + wF * `+l+`;

          if (xF < 0 || xF >= `+t.inDepth+`) {
            continue;
          }

          for (int wR = 0; wR < `+d+`; wR++) {
            int xR = xRCorner + wR * `+u+`;

            if (xR < 0 || xR >= `+t.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+p+`; wC++) {
              int xC = xCCorner + wC * `+c+`;

              if (xC < 0 || xC >= `+t.inWidth+`) {
                continue;
              }

              for (int d1 = 0; d1 < `+f+`; 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, `+f+`) *
                  getW(wF, wR, wC, `+f+`, d2);
              } else if (`+(m===2)+`) {
                vec2 xValues = vec2(
                  getX(batch, xF, xR, xC, `+f+`),
                  getX(batch, xF, xR, xC, `+f+` + 1)
                );
                vec2 wValues = vec2(
                  getW(wF, wR, wC, `+f+`, d2),
                  getW(wF, wR, wC, `+f+` + 1, d2)
                );
                dotProd += dot(xValues, wValues);
              } else if (`+(m===3)+`) {
                vec3 xValues = vec3(
                  getX(batch, xF, xR, xC, `+f+`),
                  getX(batch, xF, xR, xC, `+f+` + 1),
                  getX(batch, xF, xR, xC, `+f+` + 2)
                );
                vec3 wValues = vec3(
                  getW(wF, wR, wC, `+f+`, d2),
                  getW(wF, wR, wC, `+f+` + 1, d2),
                  getW(wF, wR, wC, `+f+` + 2, d2)
                );
                dotProd += dot(xValues, wValues);
              }
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}();var rS=function(){function n(t,e,i,r){e===void 0&&(e=!1),i===void 0&&(i=null),r===void 0&&(r=!1),this.variableNames=["x","W"],this.outputShape=t.outShape;var a=t.inHeight,s=t.inWidth,o=t.padInfo.top,l=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,h=t.dilationHeight,d=t.dilationWidth,p=t.filterHeight,f=t.filterWidth,m=t.outChannels/t.inChannels,g="",v="";i&&(r?g=`float activation(float a) {
          float b = getPreluActivationWeightsAtOutCoords();
          `+i+`
        }`:g=`
          float activation(float x) {
            `+i+`
          }
        `,v="result = activation(result);");var b=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+g+`

      const ivec2 strides = ivec2(`+u+", "+c+`);
      const ivec2 pads = ivec2(`+o+", "+l+`);

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

        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 < `+p+`; wR++) {
          int xR = xRCorner + wR * `+h+`;

          if (xR < 0 || xR >= `+a+`) {
            continue;
          }

          for (int wC = 0; wC < `+f+`; wC++) {
            int xC = xCCorner + wC * `+d+`;

            if (xC < 0 || xC >= `+s+`) {
              continue;
            }

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

        float result = dotProd;
        `+b+`
        `+v+`
        setOutput(result);
      }
    `}return n}();var aS=function(){function n(t,e,i,r){e===void 0&&(e=!1),i===void 0&&(i=null),r===void 0&&(r=!1),this.variableNames=["x","W"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t.outShape;for(var a=t.inHeight,s=t.inWidth,o=t.padInfo.top,l=t.padInfo.left,u=t.strideHeight,c=t.strideWidth,h=t.dilationHeight,d=t.dilationWidth,p=t.filterHeight,f=t.filterWidth,m=f,g="int xR; int xC; int xCOffset;",v=0;v<p;v++)for(var b=0;b<f;b++)g+=`
          vec4 xTexelR`+v+"C"+b*2+` = vec4(0.);
          vec4 wR`+v+"C"+b+` = vec4(0.);
          vec4 xR`+v+"C"+b+" = vec4(0.);";for(var v=0;v<p;v++)for(var w=0;w<m;w++){var b=w*2;if(g+=`
          xR = xRCorner + `+v*h+`;
          xC = xCCorner + `+b*d+`;
        `,c===1){if(b<f&&(l%2===1?g+=`
                xCOffset = xC + 1;
                if(xR >= 0 && xR < `+a+" && xCOffset >= 0 && xCOffset < "+s+`) {
                  xTexelR`+v+"C"+b+` = getX(batch, xR, xCOffset, d1);

                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if(xCOffset + 1 >= `+s+`) {
                    xTexelR`+v+"C"+b+`.zw = vec2(0.);
                  }
                } else {
                  xTexelR`+v+"C"+b+` = vec4(0.);
                }

                xCOffset = xC + 1 - 2;
                if(xR >= 0 && xR < `+a+" && xCOffset >= 0 && xCOffset < "+s+`) {
                  vec4 previous = getX(batch, xR, xCOffset, d1);

                  // Need to manually clear unused channels in case
                  // we're reading from recycled texture.
                  if(xCOffset + 1 >= `+s+`) {
                    previous.zw = vec2(0.);
                  }

                  xR`+v+"C"+b+" = vec4(previous.zw, xTexelR"+v+"C"+b+`.xy);
                } else {
                  xR`+v+"C"+b+" = vec4(0, 0, xTexelR"+v+"C"+b+`.xy);
                }
              `:g+=`
                if(xR >= 0 && xR < `+a+" && xC >= 0 && xC < "+s+`) {
                  xTexelR`+v+"C"+b+` = getX(batch, xR, xC, d1);
                } else {
                  xTexelR`+v+"C"+b+` = vec4(0.);
                }

                xR`+v+"C"+b+" = xTexelR"+v+"C"+b+`;
              `,b+1<f)){var S=l%2===0?N.util.nearestLargerEven(d):d;d%2===0&&l%2===1||d%2!==0&&l%2!==1?(g+=`
                  xCOffset = xC + `+l%2+" + "+S+`;

                  if(xR >= 0 && xR < `+a+` &&
                    xCOffset >= 0 && xCOffset < `+s+`) {
                    xTexelR`+v+"C"+(b+2)+` = getX(batch, xR, xCOffset, d1);
                  }
                `,d>1&&(g+=`
                    xCOffset -= 2;
                    if(xR >= 0 && xR < `+a+` &&
                      xCOffset >= 0 && xCOffset < `+s+`) {
                      xTexelR`+v+"C"+b+` = getX(batch, xR, xCOffset, d1);
                    } else {
                      xTexelR`+v+"C"+b+` = vec4(0.);
                    }
                  `),g+=`
                  xR`+v+"C"+(b+1)+` = vec4(
                    xTexelR`+v+"C"+b+".zw, xTexelR"+v+"C"+(b+2)+`.xy);
                `):g+=`
                  xCOffset = xC + `+S+`;

                  if(xR >= 0 && xR < `+a+` &&
                    xCOffset >= 0 && xCOffset < `+s+`) {
                    xTexelR`+v+"C"+(b+2)+` = getX(batch, xR, xCOffset, d1);
                  }

                  xR`+v+"C"+(b+1)+" = xTexelR"+v+"C"+(b+2)+`;
                `}}else b<f&&(g+=`
              if(xR >= 0 && xR < `+a+`) {
            `,l%2===1?(g+=`
                xCOffset = xC + 1 - `+c+`;
                if(xCOffset >= 0 && xCOffset < `+s+`) {
                  xTexelR`+v+"C"+b+` = getX(batch, xR, xCOffset, d1);
                } else {
                  xTexelR`+v+"C"+b+` = vec4(0.);
                }

                if(xC + 1 >= 0 && xC + 1 < `+s+`) {
                  xTexelR`+v+"C"+(b+2)+` = getX(batch, xR, xC + 1, d1);
                } else {
                  xTexelR`+v+"C"+(b+2)+` = vec4(0.);
                }

                xR`+v+"C"+b+` = vec4(
                  xTexelR`+v+"C"+b+".zw, xTexelR"+v+"C"+(b+2)+`.zw);
              `,b+1<f&&(g+=`
                  vec4 final = vec4(0.);
                  xCOffset = xC + 1 + `+c+`;
                  if(xCOffset >= 0 && xCOffset < `+s+`) {
                    final = getX(batch, xR, xCOffset, d1);
                  }
                  xR`+v+"C"+(b+1)+" = vec4(xTexelR"+v+"C"+(b+2)+`.xy, final.xy);
                `)):(g+=`
                if(xC >= 0 && xC < `+s+`) {
                  xTexelR`+v+"C"+b+` = getX(batch, xR, xC, d1);
                } else {
                  xTexelR`+v+"C"+b+` = vec4(0.);
                }

                xCOffset = xC + `+c+`;
                if(xCOffset >= 0 && xCOffset < `+s+`) {
                  xTexelR`+v+"C"+(b+2)+` = getX(batch, xR, xCOffset, d1);
                } else {
                  xTexelR`+v+"C"+(b+2)+` = vec4(0.);
                }

                xR`+v+"C"+b+` = vec4(
                  xTexelR`+v+"C"+b+".xy, xTexelR"+v+"C"+(b+2)+`.xy);
              `,b+1<f&&(g+=`
                  xR`+v+"C"+(b+1)+` = vec4(
                    xTexelR`+v+"C"+b+".zw, xTexelR"+v+"C"+(b+2)+`.zw);
                `)),g+="}");b<f&&(g+=`
            vec4 wTexelR`+v+"C"+b+" = getW("+v+", "+b+`, d1, q);
            wR`+v+"C"+b+" = vec4(wTexelR"+v+"C"+b+".xz, wTexelR"+v+"C"+b+`.xz);
          `,b+1<f&&(g+=`
              vec4 wTexelR`+v+"C"+(b+1)+" = getW("+v+", "+(b+1)+`, d1, q);
              wR`+v+"C"+(b+1)+` =
                vec4(wTexelR`+v+"C"+(b+1)+".xz, wTexelR"+v+"C"+(b+1)+".xz);"))}for(var v=0;v<p;v++)for(var b=0;b<f;b++)g+="dotProd += xR"+v+"C"+b+" * wR"+v+"C"+b+";";var L="",x="";i&&(r?L=`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          `+i+`
        }`:L=`vec4 activation(vec4 x) {
          `+i+`
        }`,x="result = activation(result);");var C=e?"result += getBiasAtOutCoords();":"";e&&this.variableNames.push("bias"),r&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+L+`

      const ivec2 strides = ivec2(`+u+", "+c+`);
      const ivec2 pads = ivec2(`+o+", "+l+`);

      void main() {

        ivec4 coords = getOutputCoords();
        int batch = coords.x;
        ivec2 xRCCorner = coords.yz * strides - pads;
        int d2 = coords.w;
        int d1 = d2;
        int q = 0;
        int xRCorner = xRCCorner.x;
        int xCCorner = xRCCorner.y;

        vec4 dotProd = vec4(0.);

        `+g+`

        vec4 result = dotProd;
        `+C+`
        `+x+`
        setOutput(result);
      }
    `}return n}();var f5=function(){function n(t,e,i,r,a){this.variableNames=["Image","Boxes","BoxInd"],this.outputShape=[];var s=t[0],o=t[1],l=t[2],u=t[3],c=e[0],h=i[0],d=i[1];this.outputShape=[c,h,d,u];var p=r==="bilinear"?1:0,f=[o-1+".0",l-1+".0"],m=f[0],g=f[1],v=h>1?[""+(o-1)/(h-1),"(y2-y1) * height_ratio","y1*"+m+" + float(y)*(height_scale)"]:["0.0","0.0","0.5 * (y1+y2) * "+m],b=v[0],w=v[1],S=v[2],L=d>1?[""+(l-1)/(d-1),"(x2-x1) * width_ratio","x1*"+g+" + float(x)*(width_scale)"]:["0.0","0.0","0.5 * (x1+x2) * "+g],x=L[0],C=L[1],R=L[2];this.userCode=`
      const float height_ratio = float(`+b+`);
      const float width_ratio = float(`+x+`);
      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 = `+w+`;
        float width_scale = `+C+`;

        float in_y = `+S+`;
        if( in_y < 0.0 || in_y > `+m+` ) {
          setOutput(float(`+a+`));
          return;
        }
        float in_x = `+R+`;
        if( in_x < 0.0 || in_x > `+g+` ) {
          setOutput(float(`+a+`));
          return;
        }

        vec2 sourceFracIndexCR = vec2(in_x,in_y);
        if(`+p+` == 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);
        }
      }
    `}return n}(),lS=function(){function n(t,e,i){this.variableNames=["x"],this.outputShape=t;var r=t.length,a=e?"0.0":"getX("+sS(r,"coords")+")",s=t[t.length-1],o="",l="";e?(o=i?"end != "+(s-1):"end != 0",l=i?"end + 1":"end - 1"):(o=i?"end + pow2 < "+s:"end >= pow2",l=i?"end + pow2":"end - pow2"),this.userCode=`
      uniform float index;
      void main() {
        `+Ze(r)+` coords = getOutputCoords();
        int end = `+oS(r,"coords")+`;
        float val = `+a+`;
        int pow2 = int(pow(2.0, index));
        if (`+o+`) {
          int idx = `+l+`;
          `+oS(r,"coords")+` = idx;
          val += getX(`+sS(r,"coords")+`);
        }
        setOutput(val);
      }
    `}return n.prototype.getCustomSetupFunc=function(t){var e=this;return function(i,r){e.index==null&&(e.index=i.getUniformLocation(r,"index")),i.gl.uniform1f(e.index,t)}},n}();function sS(n,t){if(n===1)return""+t;if(n===2)return t+".x, "+t+".y";if(n===3)return t+".x, "+t+".y, "+t+".z";if(n===4)return t+".x, "+t+".y, "+t+".z, "+t+".w";throw Error("Cumulative sum for rank "+n+" is not yet supported")}function oS(n,t){if(n===1)return""+t;if(n===2)return t+".y";if(n===3)return t+".z";if(n===4)return t+".w";throw Error("Cumulative sum for rank "+n+" is not yet supported")}var m5=function(){function n(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outPackingScheme=es.DENSE;var e=ns(t),i=Wt();this.outputShape=t,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        `+fr(["r","c","d"],t)+`
        return ivec3(r, c, d);
      }

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

        `+i.output+` = result;
      }
    `}return n}();var g5=function(){function n(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outPackingScheme=es.DENSE;var e=ns(t),i=Wt();this.outputShape=t,this.userCode=`
      ivec3 outCoordsFromFlatIndex(int index) {
        `+fr(["r","c","d"],t)+`
        return ivec3(r, c, d);
      }

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

        `+i.output+` = result;
      }
    `}return n}();var v5=function(){function n(t,e,i){this.variableNames=["x"],this.outputShape=[],this.outputShape=t,this.blockSize=e,this.dataFormat=i,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 / `+e+`;
      int offset_h = imod(h, `+e+`);
      int in_w = w / `+e+`;
      int offset_w = imod(w, `+e+`);
      int offset_d = (offset_h * `+e+` + offset_w) *
        `+this.getOutputDepthSize()+`;
      int in_d = d + offset_d;

      float result = `+this.getInputSamplingString()+`;
      setOutput(result);
    }
  `}return n.prototype.getHeightCoordString=function(){return this.dataFormat==="NHWC"?"coords[1]":"coords[2]"},n.prototype.getWidthCoordString=function(){return this.dataFormat==="NHWC"?"coords[2]":"coords[3]"},n.prototype.getDepthCoordString=function(){return this.dataFormat==="NHWC"?"coords[3]":"coords[1]"},n.prototype.getOutputDepthSize=function(){return this.dataFormat==="NHWC"?this.outputShape[3]:this.outputShape[1]},n.prototype.getInputSamplingString=function(){return this.dataFormat==="NHWC"?"getX(b, in_h, in_w, in_d)":"getX(b, in_d, in_h, in_w)"},n}();var y5=function(){function n(t){this.variableNames=["X"],this.outputShape=[t,t],this.userCode=`
      void main() {
          ivec2 coords = getOutputCoords();
          float val = coords[0] == coords[1] ? getX(coords[0]) : 0.0;
          setOutput(val);
      }
    `}return n}();var b5=function(){function n(t){this.variableNames=["A"],this.outTexUsage=rn.DOWNLOAD;var e=Wt();this.outputShape=t,this.userCode=`
      `+K0+`

      void main() {
        float x = getAAtOutCoords();
        `+e.output+` = encode_float(x);
      }
    `}return n}();var w5=function(){function n(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outTexUsage=rn.DOWNLOAD;var e=Wt();this.outputShape=t,this.userCode=`
      `+K0+`

      void main() {
        ivec3 coords = getOutputCoords();
        float x = getChannel(getAAtOutCoords(), vec2(coords.y, coords.z));
        `+e.output+` = encode_float(x);
      }
    `}return n}();var S5=function(){function n(t,e,i){i===void 0&&(i=!1),this.variableNames=["A"];var r=Wt(),a=e[0],s=e[1];this.outputShape=t;var o="result";i&&(o="floor(result * 255. + 0.5)"),this.userCode=`
      `+Pd(t)+`

      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, "+a+`.0);
        vec4 values = `+r.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];
        }

        `+r.output+" = vec4("+o+`, 0., 0., 0.);
      }
    `}return n}();var L5=function(){function n(t,e,i){i===void 0&&(i=!1),this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var r=Wt(),a=e[0],s=e[1];this.outputShape=t;var o="",l="result";i&&(l="floor(result * 255. + 0.5)");for(var u=0;u<=1;u++)for(var c=0;c<=1;c++){var h=u*2+c;o+=`
          localCoords = coords;
          if(localCoords[2] + `+c+" < "+t[2]+`) {
            localCoords[2] += `+c+`;
            if(localCoords[1] + `+u+" < "+t[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, "+a+`.0);
              values = `+r.texture2D+`(A, uv);

              if(offset == 0) {
                result[`+h+`] = values[0];
              } else if(offset == 1) {
                result[`+h+`] = values[1];
              } else if(offset == 2) {
                result[`+h+`] = values[2];
              } else {
                result[`+h+`] = values[3];
              }
            }
          }
        `}this.userCode=`
      `+Pd(t)+`

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

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

        `+o+`

        `+r.output+" = "+l+`;
      }
    `}return n}();var uS={REAL:"return real * expR - imag * expI;",IMAG:"return real * expI + imag * expR;"},cS=function(){function n(t,e,i){this.variableNames=["real","imag"];var r=e[1];this.outputShape=e;var a=i?"2.0 * "+Math.PI:"-2.0 * "+Math.PI,s=i?r+".0":"1.0";this.userCode=`
      const float exponentMultiplier = `+a+`;

      float unaryOpComplex(float real, float expR, float imag, float expI) {
        `+t+`
      }

      float mulMatDFT(int batch, int index) {
        float indexRatio = float(index) / float(`+r+`);
        float exponentMultiplierTimesIndexRatio =
            exponentMultiplier * indexRatio;

        float result = 0.0;

        for (int i = 0; i < `+r+`; 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]));
      }
    `}return n}();var I5=function(){function n(t,e){this.outputShape=[],this.variableNames=["x"],this.outputShape=t,this.userCode=`
      uniform float value;
      void main() {
        // Input can be obtained from uniform value.
        setOutput(value);
      }
    `}return n.prototype.getCustomSetupFunc=function(t){var e=this;return function(i,r){e.valueLoc==null&&(e.valueLoc=i.getUniformLocationNoThrow(r,"value")),i.gl.uniform1f(e.valueLoc,t)}},n}();var T5=function(){function n(t,e,i){this.variableNames=["A","indices"];var r=t.slice();r[i]=e,this.outputShape=r,this.rank=r.length;var a=Ze(this.rank),s=A5(t,i);this.userCode=`
      void main() {
        `+a+` resRC = getOutputCoords();
        setOutput(getA(`+s+`));
      }
    `}return n}();function A5(n,t){var e=n.length;if(e>4)throw Error("Gather for rank "+e+" is not yet supported");if(e===1)return"int(getIndices(resRC))";for(var i=["resRC.x","resRC.y","resRC.z","resRC.w"],r=[],a=0;a<n.length;a++)a===t?r.push("int(getIndices("+i[a]+"))"):r.push(""+i[a]);return r.join()}var N5=function(){function n(t,e,i){this.sliceDim=t,this.strides=e,this.variableNames=["x","indices"],this.outputShape=i;var r=Ze(e.length),a=Ze(i.length),s=this.sliceDim>1?"strides[j]":"strides";this.userCode=`
        `+r+" strides = "+r+"("+this.strides+`);
         void main() {
          `+a+` 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]));
        }
      `}return n}();function hS(n){var t=Wt(),e=t.version+`
    precision highp float;
    `+t.attribute+` vec3 clipSpacePos;
    `+t.attribute+` vec2 uv;
    `+t.varyingVs+` vec2 resultUV;

    void main() {
      gl_Position = vec4(clipSpacePos, 1);
      resultUV = uv;
    }`;return I0(n,e)}function dS(n){var t=new Float32Array([-1,1,0,0,1,-1,-1,0,0,0,1,1,0,1,1,1,-1,0,1,0]);return x0(n,t)}function pS(n){var t=new Uint16Array([0,1,2,2,1,3]);return C0(n,t)}function ss(n,t,e,i,r,a){O0(t,e);var s=R0(n),o=n.TEXTURE_2D;return ce(n,function(){return n.bindTexture(o,s)}),ce(n,function(){return n.texParameteri(o,n.TEXTURE_WRAP_S,n.CLAMP_TO_EDGE)}),ce(n,function(){return n.texParameteri(o,n.TEXTURE_WRAP_T,n.CLAMP_TO_EDGE)}),ce(n,function(){return n.texParameteri(o,n.TEXTURE_MIN_FILTER,n.NEAREST)}),ce(n,function(){return n.texParameteri(o,n.TEXTURE_MAG_FILTER,n.NEAREST)}),ce(n,function(){return n.texImage2D(o,0,i,t,e,0,r,a,null)}),ce(n,function(){return n.bindTexture(n.TEXTURE_2D,null)}),s}function Hd(n){return n.internalFormatFloat}function fS(n,t,e,i){var r=ts(t,e),a=r[0],s=r[1];return ss(n,a,s,Hd(i),i.textureFormatFloat,n.FLOAT)}function Vd(n){return n.internalFormatHalfFloat}function mS(n,t,e,i){var r=ts(t,e),a=r[0],s=r[1];return ss(n,a,s,Vd(i),i.textureFormatFloat,i.textureTypeHalfFloat)}function qd(n){return n.downloadTextureFormat}function gS(n,t,e,i){var r=ts(t,e),a=r[0],s=r[1];return ss(n,a,s,qd(i),n.RGBA,n.UNSIGNED_BYTE)}function Gd(n){return n.internalFormatPackedFloat}function vS(n,t,e,i){var r=ta(t,e),a=r[0],s=r[1];return ss(n,a,s,Gd(i),n.RGBA,n.FLOAT)}function Yd(n){return n.internalFormatPackedHalfFloat}function yS(n,t,e,i){var r=ta(t,e),a=r[0],s=r[1];return ss(n,a,s,Yd(i),n.RGBA,i.textureTypeHalfFloat)}function bS(n,t,e){var i=0,r=3*4,a=3*4+2*4;ce(n,function(){return n.bindBuffer(n.ARRAY_BUFFER,e)});var s=Fd(n,t,"clipSpacePos",e,3,a,i);return s&&Fd(n,t,"uv",e,2,a,r)}function wS(n,t,e,i,r,a){ce(n,function(){return n.bindTexture(n.TEXTURE_2D,t)});var s,o,l;r instanceof Uint8Array?(s=new Uint8Array(e*i*4),o=n.UNSIGNED_BYTE,l=n.RGBA):(s=new Float32Array(e*i*4),o=n.FLOAT,l=a.internalFormatPackedFloat),s.set(r),ce(n,function(){return n.texImage2D(n.TEXTURE_2D,0,l,e,i,0,n.RGBA,o,s)}),ce(n,function(){return n.bindTexture(n.TEXTURE_2D,null)})}function SS(n,t,e){ce(n,function(){return n.bindTexture(n.TEXTURE_2D,t)}),e.data instanceof Uint8Array?ce(n,function(){return n.texImage2D(n.TEXTURE_2D,0,n.RGBA,e.width,e.height,0,n.RGBA,n.UNSIGNED_BYTE,e.data)}):ce(n,function(){return n.texImage2D(n.TEXTURE_2D,0,n.RGBA,n.RGBA,n.UNSIGNED_BYTE,e)}),ce(n,function(){return n.bindTexture(n.TEXTURE_2D,null)})}function LS(n,t,e,i){var r=n.createBuffer();ce(n,function(){return n.bindBuffer(n.PIXEL_PACK_BUFFER,r)});var a=4,s=4,o=a*s*t*e;return ce(n,function(){return n.bufferData(n.PIXEL_PACK_BUFFER,o,n.STREAM_READ)}),ce(n,function(){return n.readPixels(0,0,e,t,n.RGBA,n.FLOAT,0)}),ce(n,function(){return n.bindBuffer(n.PIXEL_PACK_BUFFER,null)}),r}function IS(n,t,e){var i=n,r=new Float32Array(e);return i.bindBuffer(i.PIXEL_PACK_BUFFER,t),i.getBufferSubData(i.PIXEL_PACK_BUFFER,0,r),i.bindBuffer(i.PIXEL_PACK_BUFFER,null),r}function AS(n,t,e,i){var r=ts(t,e),a=r[0],s=r[1],o=4,l=new Uint8Array(ZP(t*e,o));return ce(n,function(){return n.readPixels(0,0,a,s,i.downloadTextureFormat,n.UNSIGNED_BYTE,l)}),new Float32Array(l.buffer)}function TS(n,t,e,i,r,a,s,o){var l=n,u=new Float32Array(QP(a,s));return l.bindBuffer(l.PIXEL_PACK_BUFFER,t),l.getBufferSubData(l.PIXEL_PACK_BUFFER,0,u),l.bindBuffer(l.PIXEL_PACK_BUFFER,null),u}function NS(n,t,e){var i=new Float32Array(t*e*4);return ce(n,function(){return n.readPixels(0,0,e,t,n.RGBA,n.FLOAT,i)}),i}var x5={__proto__:null,createVertexShader:hS,createVertexBuffer:dS,createIndexBuffer:pS,getInternalFormatForFloat32MatrixTexture:Hd,createFloat32MatrixTexture:fS,getInternalFormatForFloat16MatrixTexture:Vd,createFloat16MatrixTexture:mS,getInternalFormatForUnsignedBytesMatrixTexture:qd,createUnsignedBytesMatrixTexture:gS,getInternalFormatForPackedMatrixTexture:Gd,createPackedMatrixTexture:vS,getInternalFormatForFloat16PackedMatrixTexture:Yd,createFloat16PackedMatrixTexture:yS,bindVertexProgramAttributeStreams:bS,uploadDenseMatrixToTexture:wS,uploadPixelDataToTexture:SS,createBufferFromOutputTexture:LS,downloadFloat32MatrixFromBuffer:IS,downloadByteEncodedFloatMatrixFromOutputTexture:AS,downloadPackedMatrixFromBuffer:TS,downloadMatrixFromPackedOutputTexture:NS};var xS=function(){function n(t){this.outputTexture=null,this.program=null,this.disposed=!1,this.vertexAttrsAreBound=!1,this.itemsToPoll=[];var e=N.env().getNumber("WEBGL_VERSION");t!=null?(this.gl=t,w0(e,t)):this.gl=Mn(e);var i="WEBGL_color_buffer_float",r="EXT_color_buffer_half_float";if(N.env().getNumber("WEBGL_VERSION")===1){var a="OES_texture_float",s="OES_texture_half_float";if(this.textureFloatExtension=is(this.gl,a),an(this.gl,s))this.textureHalfFloatExtension=is(this.gl,s);else if(N.env().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(i),an(this.gl,r))this.colorBufferHalfFloatExtension=is(this.gl,r);else if(N.env().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(i="EXT_color_buffer_float",an(this.gl,i))this.colorBufferFloatExtension=this.gl.getExtension(i);else if(an(this.gl,r))this.colorBufferHalfFloatExtension=this.gl.getExtension(r);else throw new Error("GL context does not support color renderable floats");this.vertexBuffer=dS(this.gl),this.indexBuffer=pS(this.gl),this.framebuffer=E0(this.gl),this.textureConfig=kd(this.gl,this.textureHalfFloatExtension)}return Object.defineProperty(n.prototype,"debug",{get:function(){return N.env().getBool("DEBUG")},enumerable:!0,configurable:!0}),n.prototype.dispose=function(){var t=this;if(this.disposed)return;this.program!=null&&console.warn("Disposing a GPGPUContext that still has a bound WebGLProgram. This is probably a resource leak, delete the program with GPGPUContext.deleteProgram before disposing."),this.outputTexture!=null&&console.warn("Disposing a GPGPUContext that still has a bound output matrix texture.  This is probably a resource leak, delete the output matrix texture with GPGPUContext.deleteMatrixTexture before disposing.");var e=this.gl;ce(e,function(){return e.finish()}),ce(e,function(){return e.bindFramebuffer(e.FRAMEBUFFER,null)}),ce(e,function(){return e.deleteFramebuffer(t.framebuffer)}),ce(e,function(){return e.bindBuffer(e.ARRAY_BUFFER,null)}),ce(e,function(){return e.bindBuffer(e.ELEMENT_ARRAY_BUFFER,null)}),ce(e,function(){return e.deleteBuffer(t.indexBuffer)}),this.disposed=!0},n.prototype.createFloat32MatrixTexture=function(t,e){return this.throwIfDisposed(),fS(this.gl,t,e,this.textureConfig)},n.prototype.createFloat16MatrixTexture=function(t,e){return this.throwIfDisposed(),mS(this.gl,t,e,this.textureConfig)},n.prototype.createUnsignedBytesMatrixTexture=function(t,e){return this.throwIfDisposed(),gS(this.gl,t,e,this.textureConfig)},n.prototype.uploadPixelDataToTexture=function(t,e){this.throwIfDisposed(),SS(this.gl,t,e)},n.prototype.uploadDenseMatrixToTexture=function(t,e,i,r){this.throwIfDisposed(),wS(this.gl,t,e,i,r,this.textureConfig)},n.prototype.createFloat16PackedMatrixTexture=function(t,e){return this.throwIfDisposed(),yS(this.gl,t,e,this.textureConfig)},n.prototype.createPackedMatrixTexture=function(t,e){return this.throwIfDisposed(),vS(this.gl,t,e,this.textureConfig)},n.prototype.deleteMatrixTexture=function(t){var e=this;this.throwIfDisposed(),this.outputTexture===t&&(Wd(this.gl,this.framebuffer),this.outputTexture=null),ce(this.gl,function(){return e.gl.deleteTexture(t)})},n.prototype.downloadByteEncodedFloatMatrixFromOutputTexture=function(t,e,i){var r=this;return this.downloadMatrixDriver(t,function(){return AS(r.gl,e,i,r.textureConfig)})},n.prototype.downloadPackedMatrixFromBuffer=function(t,e,i,r,a,s){return TS(this.gl,t,e,i,r,a,s,this.textureConfig)},n.prototype.downloadFloat32MatrixFromBuffer=function(t,e){return IS(this.gl,t,e)},n.prototype.createBufferFromTexture=function(t,e,i){this.bindTextureToFrameBuffer(t);var r=LS(this.gl,e,i,this.textureConfig);return this.unbindTextureToFrameBuffer(),r},n.prototype.createAndWaitForFence=function(){var t=this.createFence(this.gl);return this.pollFence(t)},n.prototype.createFence=function(t){var e=this,i,r;if(N.env().getBool("WEBGL_FENCE_API_ENABLED")){var a=t,s=a.fenceSync(a.SYNC_GPU_COMMANDS_COMPLETE,0);t.flush(),r=function(){var o=a.clientWaitSync(s,0,0);return o===a.ALREADY_SIGNALED||o===a.CONDITION_SATISFIED},i=s}else N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")>0?(i=this.beginQuery(),this.endQuery(),r=function(){return e.isQueryAvailable(i,N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))}):r=function(){return!0};return{query:i,isFencePassed:r}},n.prototype.downloadMatrixFromPackedTexture=function(t,e,i){var r=this;return this.downloadMatrixDriver(t,function(){return NS(r.gl,e,i)})},n.prototype.createProgram=function(t){this.throwIfDisposed();var e=this.gl,i=A0(e,t),r=hS(e),a=T0(e);return ce(e,function(){return e.attachShader(a,r)}),ce(e,function(){return e.attachShader(a,i)}),N0(e,a),this.debug&&Bo(e,a),this.vertexAttrsAreBound||(this.setProgram(a),this.vertexAttrsAreBound=bS(e,this.program,this.vertexBuffer)),a},n.prototype.deleteProgram=function(t){var e=this;this.throwIfDisposed(),t===this.program&&(this.program=null),t!=null&&ce(this.gl,function(){return e.gl.deleteProgram(t)})},n.prototype.setProgram=function(t){var e=this;this.throwIfDisposed(),this.program=t,this.program!=null&&this.debug&&Bo(this.gl,this.program),ce(this.gl,function(){return e.gl.useProgram(t)})},n.prototype.getUniformLocation=function(t,e,i){return i===void 0&&(i=!0),this.throwIfDisposed(),i?F0(this.gl,t,e):W0(this.gl,t,e)},n.prototype.getAttributeLocation=function(t,e){var i=this;return this.throwIfDisposed(),ce(this.gl,function(){return i.gl.getAttribLocation(t,e)})},n.prototype.getUniformLocationNoThrow=function(t,e){return this.throwIfDisposed(),this.gl.getUniformLocation(t,e)},n.prototype.setInputMatrixTexture=function(t,e,i){this.throwIfDisposed(),this.throwIfNoProgram(),U0(this.gl,t,e,i)},n.prototype.setOutputMatrixTexture=function(t,e,i){this.setOutputMatrixTextureDriver(t,i,e)},n.prototype.setOutputPackedMatrixTexture=function(t,e,i){this.throwIfDisposed();var r=ta(e,i),a=r[0],s=r[1];this.setOutputMatrixTextureDriver(t,a,s)},n.prototype.setOutputMatrixWriteRegion=function(t,e,i,r){this.setOutputMatrixWriteRegionDriver(i,t,r,e)},n.prototype.setOutputPackedMatrixWriteRegion=function(t,e,i,r){throw new Error("setOutputPackedMatrixWriteRegion not implemented.")},n.prototype.debugValidate=function(){this.program!=null&&Bo(this.gl,this.program),rs(this.gl)},n.prototype.executeProgram=function(){this.throwIfDisposed(),this.throwIfNoProgram();var t=this.gl;this.debug&&this.debugValidate(),ce(t,function(){return t.drawElements(t.TRIANGLES,6,t.UNSIGNED_SHORT,0)})},n.prototype.blockUntilAllProgramsCompleted=function(){var t=this;this.throwIfDisposed(),ce(this.gl,function(){return t.gl.finish()})},n.prototype.getQueryTimerExtension=function(){return this.disjointQueryTimerExtension==null&&(this.disjointQueryTimerExtension=is(this.gl,N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2?"EXT_disjoint_timer_query_webgl2":"EXT_disjoint_timer_query")),this.disjointQueryTimerExtension},n.prototype.getQueryTimerExtensionWebGL2=function(){return this.getQueryTimerExtension()},n.prototype.getQueryTimerExtensionWebGL1=function(){return this.getQueryTimerExtension()},n.prototype.beginQuery=function(){if(N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){var t=this.gl,e=this.getQueryTimerExtensionWebGL2(),i=t.createQuery();return t.beginQuery(e.TIME_ELAPSED_EXT,i),i}var r=this.getQueryTimerExtensionWebGL1(),a=r.createQueryEXT();return r.beginQueryEXT(r.TIME_ELAPSED_EXT,a),a},n.prototype.endQuery=function(){if(N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION")===2){var t=this.gl,e=this.getQueryTimerExtensionWebGL2();t.endQuery(e.TIME_ELAPSED_EXT);return}var i=this.getQueryTimerExtensionWebGL1();i.endQueryEXT(i.TIME_ELAPSED_EXT)},n.prototype.waitForQueryAndGetTime=function(t){return Wo(this,void 0,void 0,function(){var e=this;return Uo(this,function(i){switch(i.label){case 0:return[4,N.util.repeatedTry(function(){return e.disposed||e.isQueryAvailable(t,N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))})];case 1:return i.sent(),[2,this.getQueryTime(t,N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_VERSION"))]}})})},n.prototype.getQueryTime=function(t,e){if(e===0)return null;if(e===2){var i=this.gl,r=i.getQueryParameter(t,i.QUERY_RESULT);return r/1e6}else{var a=this.getQueryTimerExtensionWebGL1(),r=a.getQueryObjectEXT(t,a.QUERY_RESULT_EXT);return r/1e6}},n.prototype.isQueryAvailable=function(t,e){if(e===0)return!0;if(e===2){var i=this.gl,r=this.getQueryTimerExtensionWebGL2(),a=i.getQueryParameter(t,i.QUERY_RESULT_AVAILABLE);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),a&&!this.disjoint}else{var r=this.getQueryTimerExtensionWebGL1(),a=r.getQueryObjectEXT(t,r.QUERY_RESULT_AVAILABLE_EXT);return this.disjoint==null&&(this.disjoint=this.gl.getParameter(r.GPU_DISJOINT_EXT)),a&&!this.disjoint}},n.prototype.pollFence=function(t){var e=this;return new Promise(function(i){e.addItemToPoll(function(){return t.isFencePassed()},function(){return i()})})},n.prototype.pollItems=function(){for(var t=C5(this.itemsToPoll.map(function(r){return r.isDoneFn})),e=0;e<=t;++e){var i=this.itemsToPoll[e].resolveFn;i()}this.itemsToPoll=this.itemsToPoll.slice(t+1)},n.prototype.addItemToPoll=function(t,e){var i=this;if(this.itemsToPoll.push({isDoneFn:t,resolveFn:e}),this.itemsToPoll.length>1)return;N.util.repeatedTry(function(){return i.pollItems(),i.itemsToPoll.length===0})},n.prototype.bindTextureToFrameBuffer=function(t){this.throwIfDisposed(),zo(this.gl,t,this.framebuffer),this.debug&&rs(this.gl)},n.prototype.unbindTextureToFrameBuffer=function(){this.outputTexture!=null?(zo(this.gl,this.outputTexture,this.framebuffer),this.debug&&rs(this.gl)):Wd(this.gl,this.framebuffer)},n.prototype.downloadMatrixDriver=function(t,e){this.bindTextureToFrameBuffer(t);var i=e();return this.unbindTextureToFrameBuffer(),i},n.prototype.setOutputMatrixTextureDriver=function(t,e,i){this.throwIfDisposed();var r=this.gl;zo(r,t,this.framebuffer),this.debug&&rs(r),this.outputTexture=t,ce(r,function(){return r.viewport(0,0,e,i)}),ce(r,function(){return r.scissor(0,0,e,i)})},n.prototype.setOutputMatrixWriteRegionDriver=function(t,e,i,r){var a=this;this.throwIfDisposed(),ce(this.gl,function(){return a.gl.scissor(t,e,i,r)})},n.prototype.throwIfDisposed=function(){if(this.disposed)throw new Error("Attempted to use disposed GPGPUContext.")},n.prototype.throwIfNoProgram=function(){if(this.program==null)throw new Error("No GPU program is currently set.")},n}();function C5(n){for(var t=0;t<n.length;++t){var e=n[t]();if(!e)break}return t-1}function R5(n,t,e,i){var r=t.userCode,a=e.map(function(g,v){var b={logicalShape:g.shape,texShape:g.isUniform?null:g.texData.texShape,isUniform:g.isUniform,isPacked:g.isUniform?!1:g.texData.isPacked,flatOffset:null};return g.texData!=null&&g.texData.slice!=null&&g.texData.slice.flatOffset>0&&(b.flatOffset=g.texData.slice.flatOffset),{name:t.variableNames[v],shapeInfo:b}}),s=a.map(function(g){return g.shapeInfo}),o={logicalShape:i.shape,texShape:i.texData.texShape,isUniform:!1,isPacked:i.texData.isPacked,flatOffset:null},l=J_(a,o,r,t.packedInputs),u=n.createProgram(l),c=null,h=n.getUniformLocation(u,"NAN",!1);N.env().getNumber("WEBGL_VERSION")===1&&(c=n.getUniformLocation(u,"INFINITY",!1));for(var d={},p=0;p<t.variableNames.length;p++){var f=t.variableNames[p],m=!1;d[f]=n.getUniformLocation(u,f,m),d["offset"+f]=n.getUniformLocation(u,"offset"+f,m)}return{program:t,source:l,webGLProgram:u,uniformLocations:d,inShapeInfos:s,outShapeInfo:o,infLoc:c,nanLoc:h}}function CS(n,t){if(n.length!==t.length)throw Error("Binary was compiled with "+n.length+" inputs, but "+("was executed with "+t.length+" inputs"));n.forEach(function(e,i){var r=e.logicalShape,a=t[i],s=a.shape;if(!N.util.arraysEqual(r,s))throw Error("Binary was compiled with different shapes than "+("the current args. Shapes "+r+" and "+s+" must match"));if(e.isUniform&&a.isUniform)return;var o=e.texShape,l=a.isUniform?null:a.texData.texShape;if(!N.util.arraysEqual(o,l))throw Error("Binary was compiled with different texture shapes than the"+(" current args. Shape "+o+" and "+l+" must match"))})}function O5(n,t,e,i,r){CS(t.inShapeInfos,e),CS([t.outShapeInfo],[i]);var a=i.texData.texture,s=i.texData.texShape;i.texData.isPacked?n.setOutputPackedMatrixTexture(a,s[0],s[1]):n.setOutputMatrixTexture(a,s[0],s[1]),n.setProgram(t.webGLProgram),N.env().getNumber("WEBGL_VERSION")===1&&(t.infLoc!==null&&n.gl.uniform1f(t.infLoc,Infinity)),t.nanLoc!==null&&n.gl.uniform1f(t.nanLoc,NaN),e.forEach(function(o,l){var u=t.program.variableNames[l],c=t.uniformLocations[u],h=t.uniformLocations["offset"+u];if(c==null)return;if(o.isUniform){if(N.util.sizeFromShape(o.shape)<2)n.gl.uniform1f(c,o.uniformValues[0]);else{var d=o.uniformValues;d instanceof Float32Array||(d=new Float32Array(d)),n.gl.uniform1fv(c,d)}return}o.texData.slice!=null&&h!=null&&n.gl.uniform1i(h,o.texData.slice.flatOffset),n.setInputMatrixTexture(o.texData.texture,c,l)}),r!=null&&r(n,t.webGLProgram),n.executeProgram()}function E5(n,t,e){var i="";t.concat(e).forEach(function(s){var o=s.texData!=null&&s.texData.slice!=null&&s.texData.slice.flatOffset>0,l=s.isUniform?"uniform":s.texData.texShape;i+=s.shape+"_"+l+"_"+o});var r=n.userCode,a=n.constructor.name;return a+="_"+i+"_"+r,a}var D5=function(){function n(t,e,i){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var r=i.filterWidth,a=i.inChannels,s=i.strideWidth,o=i.strideHeight,l=i.padInfo,u=i.outWidth,c=i.dilationWidth,h=i.dilationHeight,d=i.dataFormat,p=l.left,f=l.top,m=a*r,g=Wt(),v=d==="channelsLast",b=v?0:1,w=v?1:2,S="",L=0;L<=1;L++)for(var x=0;x<=1;x++)S+=`
          blockIndex = rc.y + `+x+`;
          pos = rc.x + `+L+`;

          if(blockIndex < `+t[1]+" && pos < "+t[0]+`) {
            offsetY = int(blockIndex / (`+u+")) * "+o+" - "+f+`;
            d0 = offsetY + `+h+" * (pos / "+m+`);

            if(d0 < `+e[b]+` && d0 >= 0) {

              offsetX = int(mod(float(blockIndex), `+u+".) * "+s+". - "+p+`.);
              d1 = offsetX + `+c+" * (int(mod(float(pos), "+m+".) / "+a+`.));

              if(d1 < `+e[w]+` && d1 >= 0) {

                ch = int(mod(float(pos), `+a+`.));

                if (`+v+`) {
                  innerDims = vec2(d1, ch);
                  result[`+(L*2+x)+`] = getChannel(
                    getA(d0, int(innerDims.x),
                    int(innerDims.y)), innerDims);
                } else {
                  innerDims = vec2(d0, d1);
                  result[`+(L*2+x)+`] = 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;

        `+S+`

        `+g.output+` = result;
      }
    `}return n}();var k5=function(){function n(t,e,i,r,a){this.variableNames=["x"],this.outputShape=[];var s=e,o=t[3]-1;this.outputShape=t;var l,u="float("+i+") + float("+r+") * sum";a===.5?l="inversesqrt("+u+")":a===1?l="1.0/("+u+")":l="exp(log("+u+") * float(-"+a+"));",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 <=  `+o+`) {
            float z = getX(b, r, c, idx);
            sum += z * z;
          }
        }
        float val = x * `+l+`;
        setOutput(val);
      }
    `}return n}();var F5=function(){function n(t,e,i,r,a){this.variableNames=["inputImage","outputImage","dy"],this.outputShape=[],this.outputShape=t,this.depth=t[3],this.depthRadius=e,this.bias=i,this.alpha=r,this.beta=a,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 - `+e+`)));
          int depthEnd = int(min(float(`+this.depth+`),
              float(d + `+e+` + 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(`+r+") * norm + float("+i+`);

          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(`+r+`)
                * float(`+a+`)
                * getInputImage(b ,r ,c, k) * getOutputImage(b, r, c, d)
                / norm;
              if (k == d) {
                dyi += pow(norm, -1.0 * `+a+`);
              }
              if (k == coords[3]) {
                dyi *= getDy(b, r, c, d);
                result += dyi;
              }
            }
            else {
              break;
            }
          }
      }
      setOutput(result);
      }
    `}return n}();var W5=function(){function n(t,e,i,r,a){this.variableNames=["x"],this.outputShape=[],this.packedInputs=!0,this.packedOutput=!0;var s=e,o=t[3]-1;this.outputShape=t;var l,u="float("+i+") + float("+r+") * sum";a===.5?l="inversesqrt("+u+")":a===1?l="1.0/("+u+")":l="exp(log("+u+") * float(-"+a+"));",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(`+o+`));

          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 * `+l+`;
        setOutput(result);
      }
    `}return n}();var U5=function(){function n(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideHeight,i=t.strideWidth,r=t.dilationHeight,a=t.effectiveFilterHeight,s=t.effectiveFilterWidth,o=a-1-t.padInfo.top,l=s-1-t.padInfo.left,u=a*s-1;this.userCode=`
      const ivec2 pads = ivec2(`+o+", "+l+`);

      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 < `+a+`;
          wR += `+r+`) {
          float dyR = float(dyRCorner + wR) / `+e+`.0;

          if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 || fract(dyR) > 0.0) {
            continue;
          }
          int idyR = int(dyR);

          for (int wC = 0; wC < `+s+`; wC++) {
            float dyC = float(dyCCorner + wC) / `+i+`.0;

            if (dyC < 0.0 || dyC >= `+t.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);
      }
    `}return n}(),B5=function(){function n(t){this.variableNames=["dy","maxPos"],this.outputShape=t.inShape;var e=t.strideDepth,i=t.strideHeight,r=t.strideWidth,a=t.dilationDepth,s=t.dilationHeight,o=t.dilationWidth,l=t.effectiveFilterDepth,u=t.effectiveFilterHeight,c=t.effectiveFilterWidth,h=l-1-t.padInfo.front,d=u-1-t.padInfo.top,p=c-1-t.padInfo.left,f=l*u*c-1;this.userCode=`
      const ivec3 pads = ivec3(`+h+", "+d+", "+p+`);

      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 < `+l+`;
           wD += `+a+`) {
          float dyD = float(dyDCorner + wD) / `+e+`.0;

          if (dyD < 0.0 || dyD >= `+t.outDepth+`.0 || fract(dyD) > 0.0) {
            continue;
          }
          int idyD = int(dyD);

          for (int wR = 0; wR < `+u+`;
              wR += `+s+`) {
            float dyR = float(dyRCorner + wR) / `+i+`.0;

            if (dyR < 0.0 || dyR >= `+t.outHeight+`.0 ||
                fract(dyR) > 0.0) {
              continue;
            }
            int idyR = int(dyR);

            for (int wC = 0; wC < `+c+`;
                wC += `+o+`) {
              float dyC = float(dyCCorner + wC) / `+r+`.0;

              if (dyC < 0.0 || dyC >= `+t.outWidth+`.0 ||
                  fract(dyC) > 0.0) {
                continue;
              }
              int idyC = int(dyC);

              float dyValue = getDy(batch, idyD, idyR, idyC, ch);
              int maxPosValue = `+f+` -
                  int(getMaxPos(batch, idyD, idyR, idyC, ch));

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

              dotProd += dyValue * mask;
            }
          }
        }
        setOutput(dotProd);
      }
    `}return n}();var Kd=function(){function n(t,e,i,r,a,s,o){i===void 0&&(i=!1),r===void 0&&(r=!1),a===void 0&&(a=!1),s===void 0&&(s=null),o===void 0&&(o=!1),this.variableNames=["matrixA","matrixB"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e;var l=i?t[1]:t[2],u=Math.ceil(l/2),c=i?"i * 2, rc.y":"rc.y, i * 2",h=r?"rc.z, i * 2":"i * 2, rc.z",d=i?["a.xxyy","a.zzww"]:["a.xxzz","a.yyww"],p=r?["b.xzxz","b.ywyw"]:["b.xyxy","b.zwzw"],f="",m="";s&&(o?f=`vec4 activation(vec4 a) {
          vec4 b = getPreluActivationWeightsAtOutCoords();
          `+s+`
        }`:f=`vec4 activation(vec4 x) {
          `+s+`
        }`,m="result = activation(result);");var g=a?"result += getBiasAtOutCoords();":"";a&&this.variableNames.push("bias"),o&&this.variableNames.push("preluActivationWeights"),this.userCode=`
      `+f+`

      const float sharedDimension = `+u+`.0;

      vec4 dot2x2ARowBCol(ivec3 rc) {
        vec4 result = vec4(0);
        for (int i = 0; i < `+u+`; i++) {
          vec4 a = getMatrixA(rc.x, `+c+`);
          vec4 b = getMatrixB(rc.x, `+h+`);

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

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

        `+g+`

        `+m+`

        setOutput(result);
      }
    `}return n}();var z5=function(){function n(t,e,i){this.variableNames=["probs"],this.outputShape=[t,i],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 < `+(e-1)+`; i++) {
          cdf += getProbs(batch, i);

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

        // If no other event happened, last event happened.
        setOutput(float(`+(e-1)+`));
      }
    `}return n.prototype.getCustomSetupFunc=function(t){var e=this;return function(i,r){e.seedLoc==null&&(e.seedLoc=i.getUniformLocation(r,"seed")),i.gl.uniform1f(e.seedLoc,t)}},n}();var P5=function(){function n(t,e,i,r){this.variableNames=["indices"],this.outputShape=[t,e],this.userCode=`
      void main() {
        ivec2 coords = getOutputCoords();
        int index = round(getIndices(coords.x));
        setOutput(mix(float(`+r+"), float("+i+`),
                      float(index == coords.y)));
      }
    `}return n}();var V5=function(){function n(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0,this.outputShape=t;var e=t.length;if(e===0)this.userCode=`
        void main() {
          setOutput(vec4(getA(), 0., 0., 0.));
        }
      `;else{var i=Jt("rc",e),r=Ze(e),a=_5(e,t,i),s=M5(e,t[t.length-1],t[t.length-2],i),o=H5(t,i);this.userCode=`
        void main() {
          `+r+` rc = getOutputCoords();

          if(`+a+`) {
            setOutput(vec4(0));
          } else {
            `+s+`

            setOutput(vec4(`+o+`));
          }
        }
      `}}return n}();function q5(n,t){for(var e=[],i=0;i<=1;i++)for(var r=0;r<=1;r++){for(var a=(i===0?"r":"rp1")+", "+(r===0?"c":"cp1"),s=2;s<n;s++)a=t[t.length-1-s]+","+a;e.push(a)}return e}function _5(n,t,e){if(n===1)return"rc > "+t[0];for(var i="",r=n-2;r<n;r++)i+=e[r]+" >= "+t[r],r<n-1&&(i+="||");return i}function M5(n,t,e,i){if(n===1)return"";var r=i.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 >= `+e+`;
  `}function H5(n,t){var e=n.length,i=q5(e,t);return e===1?`getA(rc),
            rc + 1 >= `+n[0]+` ? 0. : getA(rc + 1),
            0, 0`:"getA("+i[0]+`),
          cEdge ? 0. : getA(`+i[1]+`),
          rEdge ? 0. : getA(`+i[2]+`),
          rEdge || cEdge ? 0. : getA(`+i[3]+")"}var G5=function(){function n(t,e,i){this.variableNames=["x"],this.outputShape=e.map(function(u,c){return u[0]+t[c]+u[1]});var r=t.length,a=Ze(r),s=e.map(function(u){return u[0]}).join(","),o=e.map(function(u,c){return u[0]+t[c]}).join(","),l=["coords[0]","coords[1]","coords[2]","coords[3]"].slice(0,r);if(r===1){this.userCode=`
        int start = `+s+`;
        int end = `+o+`;

        void main() {
          int outC = getOutputCoords();
          if (outC < start || outC >= end) {
            setOutput(float(`+i+`));
          } else {
            setOutput(getX(outC - start));
          }
        }
      `;return}this.userCode=`
      `+a+" start = "+a+"("+s+`);
      `+a+" end = "+a+"("+o+`);

      void main() {
        `+a+` outC = getOutputCoords();
        if (any(lessThan(outC, start)) || any(greaterThanEqual(outC, end))) {
          setOutput(float(`+i+`));
        } else {
          `+a+` coords = outC - start;
          setOutput(getX(`+l+`));
        }
      }
    `}return n}();var Y5=function(){function n(t,e,i){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=e.map(function(v,b){return v[0]+t[b]+v[1]});for(var r=t.length,a=Ze(r),s=e.map(function(v){return v[0]}).join(","),o=e.map(function(v,b){return v[0]+t[b]}).join(","),l=Jt("rc",r),u=Jt("source",r),c=l[r-1]+" < "+this.outputShape[r-1],h=r===1?"source":"vec2("+u.slice(-2).join()+")",d=[a+" rc = outputLoc;",l[r-1]+` += 1;
       if(`+c+`) {
      `,r===1?"":`}
       rc = outputLoc;
       `+l[r-2]+` += 1;
       if(`+l[r-2]+" < "+this.outputShape[r-2]+") {",r===1?"":"  "+l[r-1]+` += 1;
         if(`+c+") {"],p=r===1?"rc < start || rc >= end":"any(lessThan(rc, start)) || any(greaterThanEqual(rc, end))",f="",m=0,g=r===1?2:4;m<g;m++)f+=`
        `+d[m]+`
        if (`+p+`) {
          result[`+m+"] = float("+i+`);
        } else {
          `+a+` source = rc - start;
          result[`+m+"] = getChannel(getX("+u.join()+"), "+h+`);
        }
      `;f+=r===1?"} ":"}}",this.userCode=`
      const `+a+" start = "+a+"("+s+`);
      const `+a+" end = "+a+"("+o+`);

      void main() {
        `+a+` outputLoc = getOutputCoords();
        vec4 result = vec4(0.);
        `+f+`
        setOutput(result);
      }
    `}return n}();var os=function(){function n(t,e,i,r,a){if(r===void 0&&(r=!1),a===void 0&&(a=!1),this.variableNames=["x"],e==="avg"&&i)throw new Error("Cannot compute positions for average pool.");var s=t.filterWidth,o=t.strideHeight,l=t.strideWidth,u=t.dilationHeight,c=t.dilationWidth,h=t.effectiveFilterHeight,d=t.effectiveFilterWidth,p=t.padInfo.top,f=t.padInfo.left;this.outputShape=t.outShape;var m=e==="avg",g="((batch  * "+t.inHeight+" + xR) * "+t.inWidth+" + xC) * "+t.inChannels+" + d",v="(xR * "+t.inWidth+" + xC) * "+t.inChannels+" + d",b="0.0";if(m||(b="-1.0 / 1e-20"),i){var w=">=";this.userCode=`
        const ivec2 strides = ivec2(`+o+", "+l+`);
        const ivec2 pads = ivec2(`+p+", "+f+`);

        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 < `+h+`;
              wR += `+u+`) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= `+t.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+d+`;
                wC += `+c+`) {
              int xC = xCCorner + wC;

              if (xC < 0 || xC >= `+t.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 `+w+` currMinMaxValue) {
                minMaxValue = value;
                minMaxValueFound = 1.0;
                minMaxPosition = `+(r?a?g:v:"wR * "+d+" + wC")+`;
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;return}var S="max",L=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";e==="avg"&&(L="avgValue / count");var x=Math.floor(s/4)*4,C=s%4,R=`
      if (`+m+`) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = `+S+`(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec2 strides = ivec2(`+o+", "+l+`);
      const ivec2 pads = ivec2(`+p+", "+f+`);
      const float initializationValue = `+b+`;
      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 >= `+t.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(`+b+`);
        float avgValue = 0.0;
        count = 0.0;

        for (int wR = 0; wR < `+h+`;
            wR += `+u+`) {
          int xR = xRCorner + wR;

          if (xR < 0 || xR >= `+t.inHeight+`) {
            continue;
          }

          for (int wC = 0; wC < `+x+`; wC += 4) {
            int xC = xCCorner + wC * `+c+`;

            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+c+`, d),
              getValue(batch, xR, xC + 2 * `+c+`, d),
              getValue(batch, xR, xC + 3 * `+c+`, d)
            );

            `+R+`
          }

          int xC = xCCorner + `+x+`;
          if (`+(C===1)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              initializationValue,
              initializationValue,
              initializationValue
            );

            `+R+`
          } else if (`+(C===2)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+c+`, d),
              initializationValue,
              initializationValue
            );

            `+R+`
          } else if (`+(C===3)+`) {
            vec4 values = vec4(
              getValue(batch, xR, xC, d),
              getValue(batch, xR, xC + `+c+`, d),
              getValue(batch, xR, xC + 2 * `+c+`, d),
              initializationValue
            );

            `+R+`
          }
        }
        setOutput(`+L+`);
      }
    `}return n}(),jd=function(){function n(t,e,i,r,a){if(r===void 0&&(r=!1),a===void 0&&(a=!1),this.variableNames=["x"],e==="avg"&&i)throw new Error("Cannot compute positions for average pool.");var s=t.filterWidth,o=t.strideDepth,l=t.strideHeight,u=t.strideWidth,c=t.dilationDepth,h=t.dilationHeight,d=t.dilationWidth,p=t.effectiveFilterDepth,f=t.effectiveFilterHeight,m=t.effectiveFilterWidth,g=t.padInfo.front,v=t.padInfo.top,b=t.padInfo.left;this.outputShape=t.outShape;var w=e==="avg",S="0.0";if(w||(S="-1.0 / 1e-20"),i){var L=">=";this.userCode=`
        const ivec3 strides =
            ivec3(`+o+", "+l+", "+u+`);
        const ivec3 pads = ivec3(`+g+", "+v+", "+b+`);

        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 < `+p+`;
              wD += `+c+`) {
            int xD = xDCorner + wD;

            if (xD < 0 || xD >= `+t.inDepth+`) {
              continue;
            }

            for (int wR = 0; wR < `+f+`;
                wR += `+h+`) {
              int xR = xRCorner + wR;

              if (xR < 0 || xR >= `+t.inHeight+`) {
                continue;
              }

              for (int wC = 0; wC < `+m+`;
                  wC += `+d+`) {
                int xC = xCCorner + wC;

                if (xC < 0 || xC >= `+t.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 `+L+` currMinMaxValue) {
                  minMaxValue = value;
                  minMaxValueFound = 1.0;
                  minMaxPosition = `+(r?a?"(((batch * "+t.inDepth+" + xD) * "+t.inHeight+" + xR) * "+t.inWidth+" + xC) * "+t.inChannels+" + ch":"((xD * "+t.inHeight+" + xR) * "+t.inWidth+" + xC) * "+t.inChannels+" + ch":"wD * "+f+" * "+m+` +
                      wR * `+m+" + wC")+`;
                }
              }
            }
          }
          setOutput(float(minMaxPosition));
        }
      `;return}var x="max",C=e+"("+e+"("+e+"(minMaxValue[0], minMaxValue[1]), minMaxValue[2]), minMaxValue[3])";e==="avg"&&(C="avgValue / count");var R=Math.floor(s/4)*4,D=s%4,k=`
      if (`+w+`) {
        avgValue += dot(values, ones);
      } else {
        minMaxValue = `+x+`(values, minMaxValue);
      }
    `;this.userCode=`
      const ivec3 strides =
        ivec3(`+o+", "+l+", "+u+`);
      const ivec3 pads = ivec3(`+g+", "+v+", "+b+`);
      const float initializationValue = `+S+`;
      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 >= `+t.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(`+S+`);
        float avgValue = 0.0;
        count = 0.0;

        for (int wD = 0; wD < `+p+`;
            wD += `+c+`) {
          int xD = xDCorner + wD;

          if (xD < 0 || xD >= `+t.inDepth+`) {
            continue;
          }

          for (int wR = 0; wR < `+f+`;
            wR += `+h+`) {
            int xR = xRCorner + wR;

            if (xR < 0 || xR >= `+t.inHeight+`) {
              continue;
            }

            for (int wC = 0; wC < `+R+`; wC += 4) {
              int xC = xCCorner + wC * `+d+`;

              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+d+`, ch),
                getValue(batch, xD, xR, xC + 2 * `+d+`, ch),
                getValue(batch, xD, xR, xC + 3 * `+d+`, ch)
              );

              `+k+`
            }

            int xC = xCCorner + `+R+`;
            if (`+(D===1)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                initializationValue,
                initializationValue,
                initializationValue
              );

              `+k+`
            } else if (`+(D===2)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+d+`, ch),
                initializationValue,
                initializationValue
              );

              `+k+`
            } else if (`+(D===3)+`) {
              vec4 values = vec4(
                getValue(batch, xD, xR, xC, ch),
                getValue(batch, xD, xR, xC + `+d+`, ch),
                getValue(batch, xD, xR, xC + 2 * `+d+`, ch),
                initializationValue
              );

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

      float getValue(int batch, int inIdx) {
        `+f+`
        return getX(batch, inIdx);
      }

      void main() {
        ivec2 coords = getOutputCoords();
        int batch = coords[0];
        int outIdx = coords[1];
        int inOffset = outIdx * `+i+`;

        vec4 minMaxValue = vec4(`+o+`);
        float prodValue = 1.0;
        float sumValue = 0.0;
        float allValue = 1.0;
        float anyValue = 0.0;

        for (int i = 0; i < `+c+`; i += 4) {
          int inIdx = inOffset + i;
          `+p+" values = "+p+`(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            getValue(batch, inIdx + 2),
            getValue(batch, inIdx + 3)
          );

          `+d+`
        }

        int inIdx = inOffset + `+c+`;
        if (`+(h===1)+`) {
          `+p+" values = "+p+`(
            getValue(batch, inIdx),
            initializationValue,
            initializationValue,
            initializationValue
          );

          `+d+`
        } else if (`+(h===2)+`) {
          `+p+" values = "+p+`(
            getValue(batch, inIdx),
            getValue(batch, inIdx + 1),
            initializationValue,
            initializationValue
          );

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

          `+d+`
        }
        setOutput(`+u+`);
      }
    `}return n}();var OS=function(){function n(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t;for(var i="",r=0;r<4;r++){var a="thisRC = rc;";r%2===1&&(a+="thisRC.z += 1;"),r>1&&(a+="thisRC.y += 1;"),i+=`
        `+a+`
        `+(r>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[`+r+`] =
            getChannel(getA(inputRC.x, inputRC.y, inputRC.z), inputRCInnerDims);
        `+(r>0?"}":"")+`
      `}this.userCode=`
      `+K5(e)+`
      `+Pd(t)+`

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

        vec4 result = vec4(0.);

        ivec3 thisRC;
        int rows = `+t[1]+`;
        int cols = `+t[2]+`;

        `+i+`

        setOutput(result);
      }
    `}return n}();function K5(n){var t=fr(["r","c","d"],n);return`
    ivec3 inputCoordsFromReshapedOutCoords(int index) {
      `+t+`
      return ivec3(r, c, d);
    }
  `}var j5=function(){function n(t,e,i){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,a=r[1],s=r[2],o=t.shape,l=o[1],u=o[2],c=[i&&l>1?a-1:a,i&&u>1?s-1:s],h=[i&&l>1?l-1:l,i&&u>1?u-1:u],d=c[0]/h[0],p=c[1]/h[1],f=1/d,m=1/p,g=Math.ceil(f)*2+2,v=Math.ceil(m)*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(`+d+`);
        const float widthScale = float(`+p+`);

        const float invHeightScale = float(`+f+`);
        const float invWidthScale = float(`+m+`);

        const int winHeight = int(`+g+`);
        const int winWidth = int(`+v+`);

        // 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 >= `+l+`) {
            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 >= `+u+`) {
              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), `+(s-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);
      }
    `}return n}();var $5=function(){function n(t,e,i,r){this.variableNames=["A"],this.outputShape=[];var a=t[0],s=t[1],o=t[2],l=t[3];this.outputShape=[a,e,i,l];var u=[r&&e>1?s-1:s,r&&i>1?o-1:o],c=[r&&e>1?e-1:e,r&&i>1?i-1:i];this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`);
      const vec2 inputShapeRC = vec2(`+s+".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 = vec2(yRC) * effectiveInputOverOutputRatioRC;

        // Compute the four integer indices.
        ivec2 sourceFloorRC = ivec2(sourceFracIndexRC);
        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);
      }
    `}return n}();var X5=function(){function n(t,e,i,r){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=[];var a=t[0],s=t[1],o=t[2],l=t[3];this.outputShape=[a,e,i,l];var u=[r&&e>1?s-1:s,r&&i>1?o-1:o],c=[r&&e>1?e-1:e,r&&i>1?i-1:i];this.userCode=`
      const vec3 effectiveInputOverOutputRatioRC = vec3(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`,
          `+u[1]/c[1]+`);
      const vec3 inputShapeRC = vec3(`+s+".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 = vec3(yRC) * effectiveInputOverOutputRatioRC;

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

        // Should we calculate next column and row elements in 2x2 packed cell.
        bool hasNextCol = d < `+(l-1)+`;
        bool hasNextRow = coords.z < `+(i-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);
      }
    `}return n}();var J5=function(){function n(t,e,i){this.variableNames=["dy"],this.outputShape=[],this.outputShape=e.shape;var r=e.shape,a=r[1],s=r[2],o=t.shape,l=o[1],u=o[2],c=[i&&l>1?a-1:a,i&&u>1?s-1:s],h=[i&&l>1?l-1:l,i&&u>1?u-1:u],d=c[0]/h[0],p=c[1]/h[1],f=1/d,m=1/p,g=Math.ceil(f)*2+2,v=Math.ceil(m)*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(`+d+`);
        const float widthScale = float(`+p+`);

        const float invHeightScale = float(`+f+`);
        const float invWidthScale = float(`+m+`);

        const int winHeight = int(`+g+`);
        const int winWidth = int(`+v+`);

        // 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 >= `+l+`) {
            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 >= `+u+`) {
              continue;
            }

            float sourceFracRow =
              float(`+c[0]+`) *
                (float(dyR) / float(`+h[0]+`));

            float sourceFracCol =
                float(`+c[1]+`) *
                  (float(dyC) / float(`+h[1]+`));

            int sourceNearestRow = int(min(
                float(int(`+a+`) - 1),
                `+i+` ? float(round(sourceFracRow)) :
                                  float(floor(sourceFracRow))));

            int sourceNearestCol = int(min(
                float(int(`+s+`) - 1),
                `+i+` ? float(round(sourceFracCol)) :
                                  float(floor(sourceFracCol))));

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

        setOutput(accumulator);
      }
    `}return n}();var Z5=function(){function n(t,e,i,r){this.variableNames=["A"],this.outputShape=[];var a=t[0],s=t[1],o=t[2],l=t[3];this.outputShape=[a,e,i,l];var u=[r&&e>1?s-1:s,r&&i>1?o-1:o],c=[r&&e>1?e-1:e,r&&i>1?i-1:i],h=r?"0.5":"0.0";this.userCode=`
      const vec2 effectiveInputOverOutputRatioRC = vec2(
          `+u[0]/c[0]+`,
          `+u[1]/c[1]+`);
      const vec2 inputShapeRC = vec2(`+s+".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 = vec2(yRC) * effectiveInputOverOutputRatioRC;

        // Compute the coordinators of nearest neighbor point.
        ivec2 sourceNearestRC = ivec2(
          min(inputShapeRC - 1.0, floor(sourceFracIndexRC + `+h+`)));

        float newValue = getA(b, sourceNearestRC.x, sourceNearestRC.y, d);

        setOutput(newValue);
      }
    `}return n}();var Q5=function(){function n(t,e){this.variableNames=["x"];var i=t.length;if(i>4)throw new Error("WebGL backend: Reverse of rank-"+i+" tensor is not yet supported");if(this.outputShape=t,i===1){this.userCode=`
        void main() {
          int coord = getOutputCoords();
          setOutput(getX(`+t[0]+` - coord - 1));
        }
      `;return}var r=function(o){return e.indexOf(o)!==-1&&t[o]!==1?t[o]+" - coords["+o+"] - 1":"coords["+o+"]"},a=t.map(function(o,l){return r(l)}).join(","),s=Ze(i);this.userCode=`
      void main() {
        `+s+` coords = getOutputCoords();
        setOutput(getX(`+a+`));
      }
    `}return n}();var e9=function(){function n(t,e){this.variableNames=["x"],this.packedInputs=!0,this.packedOutput=!0;var i=t.length;if(i>4)throw new Error("WebGL backend: Reverse of rank-"+i+" tensor is not yet supported");this.outputShape=t;var r=Jt("rc",i),a=r[i-1]+" + 1 < "+this.outputShape[i-1],s=r[i-2]+" + 1 < "+this.outputShape[i-2],o=Ze(i);i===1?this.userCode=`
        void main(){
          int rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = getChannel(getX(`+t[0]+` - rc - 1),
            `+t[0]+` - rc - 1);
          if(`+a+`){
              result.g = getChannel(getX(`+t[0]+` - (rc  + 1) - 1),
                `+t[0]+` - (rc  + 1) - 1);
          }
          setOutput(result);
        }
      `:this.userCode=`
        void main() {
          `+o+` rc = getOutputCoords();
          vec4 result = vec4(0.);
          result.r = `+l(r.slice())+`;
          if(`+a+`){
            result.g = `+u(r.slice())+`;
          }
          if(`+s+`) {
            result.b = `+c(r.slice())+`;
            if(`+a+`) {
              result.a = `+h(r.slice())+`;
            }
          }
          setOutput(result);
        }
    `;function l(f){return d(f)}function u(f){return f[i-1]="("+f[i-1]+" + 1)",d(f)}function c(f){return f[i-2]="("+f[i-2]+" + 1)",d(f)}function h(f){return f[i-1]="("+f[i-1]+" + 1)",f[i-2]="("+f[i-2]+" + 1)",d(f)}function d(f){var m=t.map(function(b,w){return p(w,f)}),g=m.join(","),v=m.slice(-2).join(",");return"getChannel(getX("+g+"), vec2("+v+"))"}function p(f,m){return e.indexOf(f)!==-1&&t[f]!==1?t[f]+" - "+m[f]+" - 1":""+m[f]}}return n}();var ES=function(){function n(t,e,i,r,a,s,o){this.variableNames=["updates","indices","defaultValue"],this.outputShape=s;var l=Ze(a.length),u=Ze(s.length),c="";i===1?c="i":i===2&&(c="i, j");var h="getIndices("+c+")",d="";r===1?d="i":r===2&&(d="i, coords[1]");var p="getUpdates("+d+")",f=e>1?"strides[j]":"strides";this.userCode=`
        `+l+" strides = "+l+"("+a+`);

        void main() {
          `+u+` coords = getOutputCoords();
          float sum = 0.0;
          bool found = false;
          for (int i = 0; i < `+t+`; i++) {
            int flattenedIndex = 0;
            for (int j = 0; j < `+e+`; j++) {
              int index = round(`+h+`);
              flattenedIndex += index * `+f+`;
            }
            if (flattenedIndex == coords[0]) {
              sum += `+p+`;
              found = true;
            }
          }
          setOutput(mix(getDefaultValue(), sum, float(found)));
        }
      `}return n}();var t9=function(){function n(t,e){this.variableNames=["x","segmentIds"];var i=t.windowSize,r=t.batchSize,a=t.inSize,s=t.numSegments,o=s*Math.ceil(a/i);this.outputShape=[r,o];var l="0.0",u="sumValue",c=Math.floor(i/4)*4,h=i%4,d=`
        sumValue += dot(values, segFilter);
    `,p="";a%i>0&&(p=`
        if (inIdx < 0 || inIdx >= `+a+`) {
          return initializationValue;
        }
      `);var f="";a%i>0&&(f=`
        if (inIdx < 0 || inIdx >= `+a+`) {
          return -1.0;
        }
      `),this.userCode=`
      const float initializationValue = `+l+`;

      float getValue(int batch, int inIdx) {
        `+p+`
        return getX(batch, inIdx);
      }

      float getSegmentIdAtIndex(int inIdx) {
        `+f+`
        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("+i+`));
        int currentSeg = int(mod(float(outIdx), float(`+s+`)));

        float sumValue = 0.0;

        for (int i = 0; i < `+c+`; 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
          );

          `+d+`
        }

        int inIdx = inOffset + `+c+`;
        if (`+(h===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
          );

          `+d+`
        } else if (`+(h===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
          );

          `+d+`
        } else if (`+(h===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
          );

          `+d+`
        }
        setOutput(`+u+`);
      }
    `}return n}();var n9=function(){function n(t,e,i){this.variableNames=["c","a","b"],this.outputShape=e;var r,a;if(i>4)throw Error("Where for rank "+i+" is not yet supported");if(i===1)a="resRC",r="resRC";else{for(var s=["resRC.x","resRC.y","resRC.z","resRC.w"],o=[],l=[],u=0;u<e.length;u++)l.push(""+s[u]),u<t&&o.push(""+s[u]);r=o.join(),a=l.join()}var c=Ze(i);this.userCode=`
      void main() {
        `+c+` resRC = getOutputCoords();
        float cVal = getC(`+r+`);
        if (cVal >= 1.0) {
          setOutput(getA(`+a+`));
        } else {
          setOutput(getB(`+a+`));
        }
      }
    `}return n}();var r9=function(){function n(t){this.variableNames=["source"],this.outputShape=t,this.rank=t.length;var e=Ze(this.rank),i="uniform int start["+this.rank+"];",r=i9(this.rank),a,s=t.map(function(o,l){return"sourceLoc."+$d[l]+" = start["+l+"] + coords."+$d[l]+";"});a=`
        `+e+` sourceLoc;
        `+e+` coords = getOutputCoords();
        `+s.join(`
`)+`
      `,this.userCode=`
      `+i+`
      void main() {
        `+a+`
        setOutput(getSource(`+r+`));
      }
    `}return n.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the "+("length of start ("+t.length+")"));return function(i,r){if(e.startLoc==null&&(e.startLoc=i.getUniformLocationNoThrow(r,"start"),e.startLoc==null))return;i.gl.uniform1iv(e.startLoc,t)}},n}(),$d=["x","y","z","w","u","v"];function i9(n){if(n===1)return"sourceLoc";if(n<=6)return $d.slice(0,n).map(function(t){return"sourceLoc."+t}).join(",");throw Error("Slicing for rank "+n+" is not yet supported")}var a9=function(){function n(t){this.variableNames=["source"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.rank=t.length;var e=Ze(this.rank),i=Jt("coords",this.rank),r=Jt("sourceLoc",this.rank),a=this.rank===1?"sourceLoc":"vec2("+r.slice(-2).join()+")",s="getChannel(getSource("+r.join()+"), "+a+")",o=`
      result.x = `+s+`;
      if (++`+i[this.rank-1]+" < "+t[this.rank-1]+`) {
        ++`+r[this.rank-1]+`;
        result.y = `+s+`;
        --`+r[this.rank-1]+`;
      }
    `,l=this.rank===1?"":`
      --`+i[this.rank-1]+`;
      if (++`+i[this.rank-2]+" < "+t[this.rank-2]+`) {
        ++`+r[this.rank-2]+`;
        result.z = `+s+`;
        if (++`+i[this.rank-1]+" < "+t[this.rank-1]+`) {
          ++`+r[this.rank-1]+`;
          result.w = `+s+`;
        }
      }
    `,u=this.rank<=4?`sourceLoc = coords +
            `+e+"("+t.map(function(c,h){return"start["+h+"]"}).join()+");":t.map(function(c,h){return r[h]+" = "+i[h]+" + start["+h+"];"}).join(`
`);this.userCode=`
      uniform int start[`+this.rank+`];
      void main() {
        `+e+` coords = getOutputCoords();
        `+e+` sourceLoc;
        `+u+`
        vec4 result = vec4(0.);
        `+o+`
        `+l+`
        setOutput(result);
      }
    `}return n.prototype.getCustomSetupFunc=function(t){var e=this;if(t.length!==this.rank)throw Error("The rank ("+this.rank+") of the program must match the "+("length of start ("+t.length+")"));return function(i,r){if(e.startLoc==null&&(e.startLoc=i.getUniformLocationNoThrow(r,"start"),e.startLoc==null))return;i.gl.uniform1iv(e.startLoc,t)}},n}();var s9=function(){function n(t,e,i){this.variableNames=["x"],this.outputShape=i;var r=i.length,a=Ze(i.length),s=Ze(i.length),o="";if(r===1)o="coords * strides + begin";else{var l=0;o=i.map(function(u,c){return l++,i.length===1?"coords * strides["+c+"] + begin["+c+"]":"coords["+(l-1)+"] * strides["+c+"] + begin["+c+"]"}).join(",")}this.userCode=`
      `+a+" begin = "+a+"("+t+`);
      `+a+" strides = "+a+"("+e+`);

      void main() {
        `+s+` coords = getOutputCoords();
        setOutput(getX(`+o+`));
      }
    `}return n}();var o9=function(){function n(t){this.gpgpu=t,this.numUsedTextures=0,this.numFreeTextures=0,this._numBytesAllocated=0,this._numBytesFree=0,this.freeTextures={},this.logEnabled=!1,this.usedTextures={}}return n.prototype.acquireTexture=function(t,e,i){var r=kS(e,i),a=FS(t,r,i);a in this.freeTextures||(this.freeTextures[a]=[]),a in this.usedTextures||(this.usedTextures[a]=[]);var s=DS(t,r,this.gpgpu.gl,this.gpgpu.textureConfig,i);if(this.freeTextures[a].length>0){this.numFreeTextures--,this.numUsedTextures++,this._numBytesFree-=s,this.log();var o=this.freeTextures[a].shift();return this.usedTextures[a].push(o),o}var l;return r===Rt.PACKED_2X2_FLOAT32?l=this.gpgpu.createPackedMatrixTexture(t[0],t[1]):r===Rt.PACKED_2X2_FLOAT16?l=this.gpgpu.createFloat16PackedMatrixTexture(t[0],t[1]):r===Rt.UNPACKED_FLOAT32?l=this.gpgpu.createFloat32MatrixTexture(t[0],t[1]):r===Rt.UNPACKED_FLOAT16?l=this.gpgpu.createFloat16MatrixTexture(t[0],t[1]):r===Rt.PACKED_4X1_UNSIGNED_BYTE&&(l=this.gpgpu.createUnsignedBytesMatrixTexture(t[0],t[1])),this.usedTextures[a].push(l),this.numUsedTextures++,this._numBytesAllocated+=s,this.log(),l},n.prototype.releaseTexture=function(t,e,i,r){if(this.freeTextures==null)return;var a=kS(i,r),s=FS(e,a,r);s in this.freeTextures||(this.freeTextures[s]=[]);var o=DS(e,a,this.gpgpu.gl,this.gpgpu.textureConfig,r),l=N.env().get("WEBGL_DELETE_TEXTURE_THRESHOLD");l!==-1&&this._numBytesAllocated>l?(this.gpgpu.deleteMatrixTexture(t),this._numBytesAllocated-=o):(this.freeTextures[s].push(t),this.numFreeTextures++,this._numBytesFree+=o),this.numUsedTextures--;var u=this.usedTextures[s],c=u.indexOf(t);if(c<0)throw new Error("Cannot release a texture that was never provided by this texture manager");u.splice(c,1),this.log()},n.prototype.log=function(){if(!this.logEnabled)return;var t=this.numFreeTextures+this.numUsedTextures;console.log("Free/Used",this.numFreeTextures+" / "+this.numUsedTextures,"("+t+")");var e=this._numBytesFree/this._numBytesAllocated;console.log("Bytes allocated: "+this._numBytesAllocated),console.log("Bytes unused: "+this._numBytesFree+" ("+Math.round(100*e)+"%)")},Object.defineProperty(n.prototype,"numBytesAllocated",{get:function(){return this._numBytesAllocated},enumerable:!0,configurable:!0}),Object.defineProperty(n.prototype,"numBytesFree",{get:function(){return this._numBytesFree},enumerable:!0,configurable:!0}),n.prototype.getNumUsedTextures=function(){return this.numUsedTextures},n.prototype.getNumFreeTextures=function(){return this.numFreeTextures},n.prototype.dispose=function(){var t=this;if(this.freeTextures==null)return;for(var e in this.freeTextures)this.freeTextures[e].forEach(function(i){t.gpgpu.deleteMatrixTexture(i)});for(var e in this.usedTextures)this.usedTextures[e].forEach(function(r){t.gpgpu.deleteMatrixTexture(r)});this.freeTextures=null,this.usedTextures=null,this.numUsedTextures=0,this.numFreeTextures=0,this._numBytesAllocated=0,this._numBytesFree=0},n}();function l9(n,t){var e=n;if(t===e.R32F)return 4;if(t===e.R16F)return 2;if(t===e.RGBA32F)return 16;if(t===n.RGBA)return 16;if(t===e.RGBA16F)return 8;throw new Error("Unknown internal format "+t)}function DS(n,t,e,i,r){var a=u9(t,i),s;if(r){var o=ta(n[0],n[1]),l=o[0],u=o[1];s=l*u}else{var c=ts(n[0],n[1]),h=c[0],d=c[1];s=h*d}var p=l9(e,a);return s*p}function u9(n,t){switch(n){case Rt.PACKED_2X2_FLOAT32:return Gd(t);case Rt.PACKED_2X2_FLOAT16:return Yd(t);case Rt.UNPACKED_FLOAT32:return Hd(t);case Rt.UNPACKED_FLOAT16:return Vd(t);case Rt.PACKED_4X1_UNSIGNED_BYTE:return qd(t);default:throw new Error("Unknown physical texture type "+n)}}function c9(n){return N.env().getBool("WEBGL_RENDER_FLOAT32_ENABLED")?n?Rt.PACKED_2X2_FLOAT32:Rt.UNPACKED_FLOAT32:n?Rt.PACKED_2X2_FLOAT16:Rt.UNPACKED_FLOAT16}function kS(n,t){if(n===rn.UPLOAD)return Rt.PACKED_2X2_FLOAT32;if(n===rn.RENDER||n==null)return c9(t);if(n===rn.DOWNLOAD||n===rn.PIXELS)return Rt.PACKED_4X1_UNSIGNED_BYTE;throw new Error("Unknown logical texture type "+n)}function FS(n,t,e){return n[0]+"_"+n[1]+"_"+t+"_"+e}var d9=function(){function n(t,e){this.variableNames=["A"];for(var i=new Array(t.length),r=0;r<i.length;r++)i[r]=t[r]*e[r];this.outputShape=i,this.rank=i.length;var a=Ze(this.rank),s=h9(t);this.userCode=`
      void main() {
        `+a+` resRC = getOutputCoords();
        setOutput(getA(`+s+`));
      }
    `}return n}();function h9(n){var t=n.length;if(t>5)throw Error("Tile for rank "+t+" is not yet supported");if(t===1)return"imod(resRC, "+n[0]+")";for(var e=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u"],i=[],r=0;r<n.length;r++)i.push("imod("+e[r]+", "+n[r]+")");return i.join()}var Re=function(){function n(t,e){this.variableNames=["A"],this.outputShape=t,this.userCode=`
      float unaryOperation(float x) {
        `+e+`
      }

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

        setOutput(y);
      }
    `}return n}(),ti="if (isnan(x)) return x;",p9="return x;",WS="return abs(x);",US=ti+`
  return (x < 0.0) ? 0.0 : x;
`,BS=ti+`
  return (x < 0.0) ? 0.0 : min(6.0, x);
`,zS="return (x >= 0.0) ? x : (exp(x) - 1.0);",f9=`
  // Stable and Attracting Fixed Point (0, 1) for Normalized Weights.
  // see: https://arxiv.org/abs/1706.02515
  float scaleAlpha = `+N.backend_util.SELU_SCALEALPHA+`;
  float scale = `+N.backend_util.SELU_SCALE+`;
  return (x >= 0.0) ? scale * x : scaleAlpha * (exp(x) - 1.0);
`;function m9(n){return n===void 0&&(n=0),ti+(`
    return x > 0.0 ? 1.0 : float(`+n+`);
  `)}var PS="return -x;",_S="return ceil(x);",MS="return floor(x);",g9=`
  if (isnan(x)) { return 0.0; }
  return sign(x);
`,v9="return float(isnan(x));",y9="return float(isinf(x));",b9="return float(!isnan(x) && !isinf(x));",w9=`
  // 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;
    }
  }
`,HS="return exp(x);",VS="return exp(x) - 1.0;",S9=`if (x < 0.0) return NAN;
  return log(x);`,L9="return log(1.0 + x);",I9="return sqrt(x);",A9="return inversesqrt(x);",T9="return 1.0 / (1.0 + exp(-1.0 * x));",N9=`
  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;
`,x9=ti+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return asin(x);
`,C9=ti+`
  if (abs(x) > 1.) {
    return NAN;
  }
  return acos(x);
`,R9=ti+`
  return atan(x);
`,O9=`
  float e2x = exp(x);
  return (e2x - 1.0 / e2x) / 2.0;
`,E9=`
  float e2x = exp(-x);
  return (e2x + 1.0 / e2x) / 2.0;
`,D9=`
  float e2x = exp(-2.0 * abs(x));
  return sign(x) * (1.0 - e2x) / (1.0 + e2x);
`,k9=ti+"return log(x + sqrt(x * x + 1.0));",F9=ti+`
  if (x < 1.0) return NAN;
  return log(x + sqrt(x * x - 1.0));`,W9=ti+`
  if ((x < -1.0) || (x > 1.0)) return NAN;
  return (log(1.0 + x) - log(1.0 - x)) / 2.0;`,U9=`
  // Error function is calculated approximately with elementary function.
  // See "Handbook of Mathematical Functions with Formulas,
  // Graphs, and Mathematical Tables", Abramowitz and Stegun.
  float p = `+N.backend_util.ERF_P+`;
  float a1 = `+N.backend_util.ERF_A1+`;
  float a2 = `+N.backend_util.ERF_A2+`;
  float a3 = `+N.backend_util.ERF_A3+`;
  float a4 = `+N.backend_util.ERF_A4+`;
  float a5 = `+N.backend_util.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));
`,B9="return 1.0 / x;",z9="return float(!(x >= 1.0));",P9="return float(int(x));",Go="return x;";var _9="return x;",M9=`
  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;
`,qS=`
  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;
`,GS=`
  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;
`,YS=`
  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;
`,ls=function(){function n(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0,this.outputShape=t,this.userCode=`
      vec4 unaryOperation(vec4 x) {
        `+e+`
      }

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

        setOutput(y);
      }
    `}return n}();var H9=function(){function n(t){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!1,this.outputShape=t;var e=t.length,i=Jt("rc",e),r=Ze(e),a=H_(e,i),s=i.slice(-2),o=e<=1?"rc":"vec2("+s.join(",")+")";this.userCode=`
      void main() {
        `+r+` rc = getOutputCoords();
        vec4 packedInput = getA(`+a+`);

        setOutput(getChannel(packedInput, `+o+`));
      }
    `}return n}();var KS=N.backend_util.segment_util,V9=N.kernel_impls.split,q9=N.kernel_impls.tile,G9=N.kernel_impls.topkImpl,Y9=N.kernel_impls.whereImpl,K9=1e-7,j9=1e-4,Yo={};function $9(n){return n in Yo||(Yo[n]={}),Yo[n]}function Ko(n,t){if(t===void 0&&(t=!1),n==="linear")return t?_9:p9;if(n==="relu")return t?qS:US;if(n==="elu")return t?YS:zS;if(n==="relu6")return t?GS:BS;if(n==="prelu")return t?nS:tS;throw new Error("Activation "+n+" has not been implemented for the WebGL backend.")}var X9=128,J9=600;function Z9(){return N.env().global.screen==null?1024:N.env().global.screen.height*N.env().global.screen.width*window.devicePixelRatio*J9/1024/1024}var jS=1e3,$S=function(n){$P(t,n);function t(e){var i=n.call(this)||this;if(i.pendingRead=new WeakMap,i.pendingDisposal=new WeakSet,i.dataRefCount=new WeakMap,i.numBytesInGPU=0,i.uploadWaitMs=0,i.downloadWaitMs=0,i.warnedAboutMemory=!1,i.warnedAboutCPUBackend=!1,i.pendingDeletes=0,i.disposed=!1,!N.env().getBool("HAS_WEBGL"))throw new Error("WebGL is not supported on this device");if(e==null){var r=Mn(N.env().getNumber("WEBGL_VERSION"));i.binaryCache=$9(N.env().getNumber("WEBGL_VERSION")),i.gpgpu=new xS(r),i.canvas=r.canvas,i.gpgpuCreatedLocally=!0}else i.gpgpu=e,i.binaryCache={},i.gpgpuCreatedLocally=!1,i.canvas=e.gl.canvas;return i.textureManager=new o9(i.gpgpu),i.numMBBeforeWarning=Z9(),i.texData=new N.DataStorage(i,N.engine()),i}return t.prototype.numDataIds=function(){return this.texData.numDataIds()+(this.cpuBackend?this.cpuBackend.numDataIds():0)-this.pendingDeletes},t.prototype.write=function(e,i,r){if((N.env().getBool("WEBGL_CHECK_NUMERICAL_PROBLEMS")||N.env().getBool("DEBUG"))&&this.checkNumericalProblems(e),r==="complex64"&&e!=null)throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");var a={};return this.texData.set(a,{shape:i,dtype:r,values:e,usage:rn.UPLOAD,refCount:1}),a},t.prototype.incRef=function(e){var i=this.texData.get(e);i.refCount++},t.prototype.decRef=function(e){if(this.texData.has(e)){var i=this.texData.get(e);i.refCount--}},t.prototype.move=function(e,i,r,a){if(N.env().getBool("DEBUG")&&this.checkNumericalProblems(i),a==="complex64")throw new Error("Cannot write to a complex64 dtype. Please use tf.complex(real, imag).");this.texData.set(e,{shape:r,dtype:a,values:i,usage:rn.UPLOAD,refCount:1})},t.prototype.disposeIntermediateTensorInfo=function(e){var i=e.dataId;if(this.texData.has(i)){var r=this.texData.get(i);r.refCount--,r.refCount<1&&this.disposeData(i)}},t.prototype.readSync=function(e){var i=this.texData.get(e),r=i.values,a=i.dtype,s=i.complexTensors,o=i.slice,l=i.shape,u=i.isPacked;if(o!=null){var c=void 0;u?c=new ls(l,Go):c=new Re(l,Go);var h=this.runWebGLProgram(c,[{dataId:e,shape:l,dtype:a}],a),d=this.readSync(h.dataId);return this.disposeIntermediateTensorInfo(h),d}if(r!=null)return this.convertAndCacheOnCPU(e);if(a==="string")return r;var p=this.activeTimers!=null,f;p&&(f=N.util.now());var m;if(a==="complex64"){var g=s.real.dataSync(),v=s.imag.dataSync();m=N.backend_util.mergeRealAndImagArrays(g,v)}else m=this.getValuesFromTexture(e);return p&&(this.downloadWaitMs+=N.util.now()-f),this.convertAndCacheOnCPU(e,m)},t.prototype.read=function(e){return Wo(this,void 0,void 0,function(){var i,r,a,s,o,l,u,c,h,d,p,f,m,g,v,b,w,S,L,x,C,R;return Uo(this,function(D){switch(D.label){case 0:if(this.pendingRead.has(e))return i=this.pendingRead.get(e),[2,new Promise(function(k){return i.push(k)})];if(r=this.texData.get(e),a=r.values,s=r.shape,o=r.slice,l=r.dtype,u=r.complexTensors,c=r.isPacked,o!=null)return h=void 0,c?h=new ls(s,Go):h=new Re(s,Go),d=this.runWebGLProgram(h,[{dataId:e,shape:s,dtype:l}],l),p=this.read(d.dataId),this.disposeIntermediateTensorInfo(d),[2,p];if(a!=null)return[2,this.convertAndCacheOnCPU(e)];if(!N.env().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")&&N.env().getNumber("WEBGL_VERSION")===2)throw new Error("tensor.data() with WEBGL_DOWNLOAD_FLOAT_ENABLED=false and WEBGL_VERSION=2 not yet supported.");return f=null,l!=="complex64"&&N.env().get("WEBGL_BUFFER_SUPPORTED")&&(m=this.decode(e),g=this.texData.get(m.dataId),f=(R=this.gpgpu).createBufferFromTexture.apply(R,[g.texture].concat(ns(s)))),this.pendingRead.set(e,[]),l!=="complex64"?[4,this.gpgpu.createAndWaitForFence()]:[3,2];case 1:D.sent(),D.label=2;case 2:return l==="complex64"?[4,Promise.all([u.real.data(),u.imag.data()])]:[3,4];case 3:return b=D.sent(),w=b[0],S=b[1],v=N.backend_util.mergeRealAndImagArrays(w,S),[3,5];case 4:f==null?v=this.getValuesFromTexture(e):(L=N.util.sizeFromShape(s),v=this.gpgpu.downloadFloat32MatrixFromBuffer(f,L)),D.label=5;case 5:return m!=null&&this.disposeIntermediateTensorInfo(m),x=this.convertAndCacheOnCPU(e,v),C=this.pendingRead.get(e),this.pendingRead.delete(e),C.forEach(function(k){return k(x)}),this.pendingDisposal.has(e)&&(this.pendingDisposal.delete(e),this.disposeData(e),this.pendingDeletes--),[2,x]}})})},t.prototype.checkNumericalProblems=function(e){if(e==null)return;for(var i=0;i<e.length;i++){var r=e[i];if(!L0(r))throw N.env().getBool("WEBGL_RENDER_FLOAT32_CAPABLE")?Error("The value "+r+" cannot be represented with your current settings. Consider enabling float32 rendering: 'tf.env().set('WEBGL_RENDER_FLOAT32_ENABLED', true);'"):Error("The value "+r+" cannot be represented on this device.")}},t.prototype.getValuesFromTexture=function(e){var i,r=this.texData.get(e),a=r.shape,s=r.dtype,o=r.isPacked,l=N.util.sizeFromShape(a);if(N.env().getBool("WEBGL_DOWNLOAD_FLOAT_ENABLED")){var u=this.decode(e),c=this.texData.get(u.dataId),h=(i=this.gpgpu).downloadMatrixFromPackedTexture.apply(i,[c.texture].concat(ns(a))).subarray(0,l);return this.disposeIntermediateTensorInfo(u),h}var d=N.env().getBool("WEBGL_PACK")&&o===!0,p=d?Po(a):a,f=d?new w5(p):new b5(p),m=this.runWebGLProgram(f,[{shape:p,dtype:s,dataId:e}],"float32"),g=this.texData.get(m.dataId),v=this.gpgpu.downloadByteEncodedFloatMatrixFromOutputTexture(g.texture,g.texShape[0],g.texShape[1]).subarray(0,l);return this.disposeIntermediateTensorInfo(m),v},t.prototype.time=function(e){return Wo(this,void 0,void 0,function(){var i,r,a,s,o,l,u;return Uo(this,function(c){switch(c.label){case 0:return i=this.activeTimers,r=[],a=!1,this.programTimersStack==null?(this.programTimersStack=r,a=!0):this.activeTimers.push(r),this.activeTimers=r,e(),s=N.util.flatten(this.activeTimers.map(function(h){return h.query})).filter(function(h){return h!=null}),o=N.util.flatten(this.activeTimers.map(function(h){return h.name})).filter(function(h){return h!=null}),this.activeTimers=i,a&&(this.programTimersStack=null),l={uploadWaitMs:this.uploadWaitMs,downloadWaitMs:this.downloadWaitMs,kernelMs:null,wallMs:null},N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[4,Promise.all(s)]:[3,2];case 1:return u=c.sent(),l.kernelMs=N.util.sum(u),l.getExtraProfileInfo=function(){return u.map(function(h,d){return{name:o[d],ms:h}}).map(function(h){return h.name+": "+h.ms}).join(", ")},[3,3];case 2:l.kernelMs={error:"WebGL query timers are not supported in this environment."},c.label=3;case 3:return this.uploadWaitMs=0,this.downloadWaitMs=0,[2,l]}})})},t.prototype.memory=function(){return{unreliable:!1,numBytesInGPU:this.numBytesInGPU,numBytesInGPUAllocated:this.textureManager.numBytesAllocated,numBytesInGPUFree:this.textureManager.numBytesFree}},t.prototype.startTimer=function(){return N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?this.gpgpu.beginQuery():{startMs:N.util.now(),endMs:null}},t.prototype.endTimer=function(e){return N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?(this.gpgpu.endQuery(),e):(e.endMs=N.util.now(),e)},t.prototype.getQueryTime=function(e){return Wo(this,void 0,void 0,function(){var i;return Uo(this,function(r){return N.env().getNumber("WEBGL_DISJOINT_QUERY_TIMER_EXTENSION_RELIABLE")>0?[2,this.gpgpu.waitForQueryAndGetTime(e)]:(i=e,[2,i.endMs-i.startMs])})})},t.prototype.disposeData=function(e){if(this.pendingDisposal.has(e))return;if(this.pendingRead.has(e)){this.pendingDisposal.add(e),this.pendingDeletes++;return}if(!this.texData.has(e))return;this.releaseGPUData(e);var i=this.texData.get(e).complexTensors;i!=null&&(i.real.dispose(),i.imag.dispose()),this.texData.delete(e)},t.prototype.releaseGPUData=function(e){var i=this.texData.get(e),r=i.texture,a=i.dtype,s=i.texShape,o=i.usage,l=i.isPacked,u=i.slice,c=u&&u.origDataId||e,h=this.dataRefCount.get(c);h>1?this.dataRefCount.set(c,h-1):(this.dataRefCount.delete(c),r!=null&&(this.numBytesInGPU-=this.computeBytes(s,a),this.textureManager.releaseTexture(r,s,o,l)));var d=this.texData.get(e);d.texture=null,d.texShape=null,d.isPacked=!1,d.slice=null},t.prototype.getTexture=function(e){return this.uploadToGPU(e),this.texData.get(e).texture},t.prototype.getDataInfo=function(e){return this.texData.get(e)},t.prototype.getCPUBackend=function(){return N.env().getBool("WEBGL_CPU_FORWARD")?(this.cpuBackend==null&&(this.cpuBackend=N.engine().findBackend("cpu")),this.cpuBackend):null},t.prototype.shouldExecuteOnCPU=function(e,i){var r=this;i===void 0&&(i=X9);var a=this.getCPUBackend();return!this.warnedAboutCPUBackend&&a==null&&(console.warn("Your application contains ops that are small enough to be executed on the CPU backend, however the CPU backend cannot be found. Consider importing the CPU backend (@tensorflow/tfjs-backend-cpu) for better performance."),this.warnedAboutCPUBackend=!0),a!=null&&e.every(function(s){return r.texData.get(s.dataId).texture==null&&N.util.sizeFromShape(s.shape)<i})},t.prototype.getGPGPUContext=function(){return this.gpgpu},t.prototype.complex=function(e,i){var r=this.makeOutput(e.shape,"complex64"),a=this.texData.get(r.dataId);return a.complexTensors={real:N.engine().keep(e.clone()),imag:N.engine().keep(i.clone())},r},t.prototype.real=function(e){var i=this.texData.get(e.dataId);return i.complexTensors.real.clone()},t.prototype.imag=function(e){var i=this.texData.get(e.dataId);return i.complexTensors.imag.clone()},t.prototype.slice=function(e,i,r){if(this.shouldExecuteOnCPU([e])){var a=U_(this.texData.get(e.dataId).values,i,r,e.shape,e.dtype);return this.makeOutput(r,e.dtype,a)}if(N.util.sizeFromShape(r)===0)return N.tensor([],r,e.dtype);var s=this.texData.get(e.dataId).isPacked,o=N.slice_util.isSliceContinous(e.shape,i,r);if(s||!o){var l=N.env().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new a9(r):new r9(r),u=l.getCustomSetupFunc(i);return this.compileAndRun(l,[e],null,u)}return this.uploadToGPU(e.dataId),this.shallowSlice(e,i,r)},t.prototype.shallowSlice=function(e,i,r){var a=this.texData.get(e.dataId),s=this.makeOutput(r,e.dtype),o=this.texData.get(s.dataId);Object.assign(o,a),o.shape=r,o.dtype=e.dtype;var l=N.slice_util.computeFlatOffset(i,e.strides);a.slice&&(l+=a.slice.flatOffset),o.slice={flatOffset:l,origDataId:a.slice&&a.slice.origDataId||e.dataId};var u=this.dataRefCount.get(o.slice.origDataId)||1;return this.dataRefCount.set(o.slice.origDataId,u+1),s},t.prototype.stridedSlice=function(e,i,r,a){var s=this,o=this.tryRunOnCpuOrThrow([e],function(){return s.cpuBackend.stridedSlice(e,i,r,a)});if(o)return o;var l=N.slice_util.computeOutShape(i,r,a);if(l.some(function(c){return c===0}))return N.tensor([],l);var u=new s9(i,a,l);return this.compileAndRun(u,[e])},t.prototype.reverse=function(e,i){var r=N.env().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new e9(e.shape,i):new Q5(e.shape,i);return this.compileAndRun(r,[e])},t.prototype.concat=function(e,i){if(e[0].dtype==="complex64"){var r=e.map(function(f){return N.real(f)}),a=e.map(function(f){return N.imag(f)});return N.complex(this.concat(r,i),this.concat(a,i))}if(e.length===1)return e[0];if(e.length>N.env().getNumber("WEBGL_MAX_TEXTURES_IN_SHADER")){var s=Math.floor(e.length/2),o=this.concat(e.slice(0,s),i),l=this.concat(e.slice(s),i);return this.concat([o,l],i)}if(N.env().getBool("WEBGL_PACK_ARRAY_OPERATIONS")&&e[0].rank>1){var u=new s5(e.map(function(f){return f.shape}),i);return this.compileAndRun(u,e)}var c=N.backend_util.computeOutShape(e.map(function(f){return f.shape}),i),h=e.map(function(f){return f.as2D(-1,N.util.sizeFromShape(f.shape.slice(i)))}),d=new a5(h.map(function(f){return f.shape})),p=this.compileAndRun(d,h);return p.reshape(c)},t.prototype.neg=function(e){var i=this,r=this.tryRunOnCpuOrThrow([e],function(){return i.cpuBackend.neg(e)});if(r)return r;if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,PS,e.dtype);var a=new Re(e.shape,PS);return this.compileAndRun(a,[e])},t.prototype.batchMatMul=function(e,i,r,a){var s=r?e.shape[2]:e.shape[1],o=a?i.shape[1]:i.shape[2],l=r?e.shape[1]:e.shape[2],u=e.shape,c=u[0];if((s===1||o===1)&&l>jS){r&&(e=N.transpose(e,[0,2,1])),a&&(i=N.transpose(i,[0,2,1]));var h=o===1?e:e.as3D(c,l,1),d=o===1?2:1,p=o===1?i.as3D(c,1,l):i;return this.multiply(h,p).sum(d,!0)}var f=N.upcastType(e.dtype,i.dtype),m=new Kd(e.shape,[c,s,o],r,a);return this.compileAndRun(m,[e,i],f)},t.prototype.fusedBatchMatMul=function(e){var i=e.a,r=e.b,a=e.transposeA,s=e.transposeB,o=e.bias,l=e.activation,u=e.preluActivationWeights,c=a?i.shape[2]:i.shape[1],h=s?r.shape[1]:r.shape[2],d=i.shape,p=d[0],f=N.upcastType(i.dtype,r.dtype),m=o!=null,g=u!=null,v=l?Ko(l,!0):null,b=new Kd(i.shape,[p,c,h],a,s,m,v,g),w=[i,r];return o&&w.push(o),u&&w.push(u),this.compileAndRun(b,w,f)},t.prototype.multiply=function(e,i){if(e.dtype==="complex64"){var r=this.texData.get(e.dataId),a=this.texData.get(i.dataId),s=new Z0(J0.REAL,e.shape,i.shape),o=new Z0(J0.IMAG,e.shape,i.shape),l=[this.makeComplexComponentTensorInfo(e,r.complexTensors.real),this.makeComplexComponentTensorInfo(e,r.complexTensors.imag),this.makeComplexComponentTensorInfo(i,a.complexTensors.real),this.makeComplexComponentTensorInfo(i,a.complexTensors.imag)],u=this.compileAndRun(s,l),c=this.compileAndRun(o,l),h=this.complex(u,c);return u.dispose(),c.dispose(),h}var d=N.upcastType(e.dtype,i.dtype);if(this.shouldExecuteOnCPU([e,i])){var r=this.texData.get(e.dataId),a=this.texData.get(i.dataId),p=F_(e.shape,i.shape,r.values,a.values,d),f=p[0],m=p[1];return this.makeOutput(m,d,f)}if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,eS,e.dtype);var g=new wt(eS,e.shape,i.shape);return this.compileAndRun(g,[e,i],e.dtype)},t.prototype.localResponseNormalization4D=function(e,i,r,a,s){var o=N.env().getBool("WEBGL_PACK_NORMALIZATION")?new W5(e.shape,i,r,a,s):new k5(e.shape,i,r,a,s);return this.compileAndRun(o,[e])},t.prototype.LRNGrad=function(e,i,r,a,s,o,l){var u=new F5(i.shape,a,s,o,l);return this.compileAndRun(u,[i,r,e])},t.prototype.tile=function(e,i){if(e.dtype==="string"){var r=this.readSync(e.dataId),a=r.map(function(l){return N.util.decodeString(l)}),s=N.buffer(e.shape,e.dtype,a);return q9(s,i)}var o=new d9(e.shape,i);return this.compileAndRun(o,[e])},t.prototype.pad=function(e,i,r){var a=N.env().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new Y5(e.shape,i,r):new G5(e.shape,i,r);return this.compileAndRun(a,[e])},t.prototype.gather=function(e,i,r){var a=this,s=this.tryRunOnCpuOrThrow([e,i],function(){return a.cpuBackend.gather(e,i,r)});if(s)return s;var o=new T5(e.shape,i.size,r);return this.compileAndRun(o,[e,i])},t.prototype.batchToSpaceND=function(e,i,r){N.util.assert(e.rank<=4,function(){return"batchToSpaceND for rank > 4 with a WebGL backend not implemented yet"});var a=i.reduce(function(h,d){return h*d}),s=N.backend_util.getReshaped(e.shape,i,a),o=N.backend_util.getPermuted(s.length,i.length),l=N.backend_util.getReshapedPermuted(e.shape,i,a),u=N.backend_util.getSliceBeginCoords(r,i.length),c=N.backend_util.getSliceSize(l,r,i.length);return N.transpose(e.reshape(s),o).reshape(l).slice(u,c)},t.prototype.spaceToBatchND=function(e,i,r){N.util.assert(e.rank<=4,function(){return"spaceToBatchND for rank > 4 with a WebGL backend not implemented yet"});var a=i.reduce(function(p,f){return p*f}),s=[[0,0]];s.push.apply(s,r);for(var o=1+i.length;o<e.shape.length;++o)s.push([0,0]);var l=e.pad(s),u=N.backend_util.getReshaped(l.shape,i,a,!1),c=N.backend_util.getPermuted(u.length,i.length,!1),h=N.backend_util.getReshapedPermuted(l.shape,i,a,!1),d=N.transpose(l.reshape(u),c);return N.reshape(d,h)},t.prototype.reduce=function(e,i,r){var a=e.shape[0],s=e.shape[1],o=N.backend_util.computeOptimalWindowSize(s),l=Math.ceil(s/o),u={windowSize:o,inSize:s,batchSize:a,outSize:l},c=new RS(u,i),h=this.compileAndRun(c,[e],r);return h.shape[1]===1?h:this.reduce(h,i,r)},t.prototype.argReduce=function(e,i,r){r===void 0&&(r=null);var a=e.shape[0],s=e.shape[1];r!=null&&(a=r.shape[0],s=r.shape[1]);var o=N.backend_util.computeOptimalWindowSize(s),l={windowSize:o,inSize:s,batchSize:a,outSize:Math.ceil(s/o)},u=new M_(l,i,r==null),c=[e];r!=null&&c.push(r);var h=this.compileAndRun(u,c,"int32");return h.shape[1]===1?h:this.argReduce(e,i,h)},t.prototype.argReducePacked=function(e,i,r){r===void 0&&(r=null);var a=r!=null?r.shape:e.shape,s=a[a.length-1],o=N.backend_util.computeOptimalWindowSize(s),l=new TM(a,o,i,r==null),u=r==null?[e]:[e,r],c=this.compileAndRun(l,u,"int32");return c.rank===e.rank?this.argReducePacked(e,i,c):c},t.prototype.sum=function(e,i){N.backend_util.assertAxesAreInnerMostDims("sum",i,e.rank);var r=N.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=N.util.sizeFromShape(s),l=e.as2D(-1,o),u=N.sumOutType(e.dtype);return this.reduce(l,"sum",u).reshape(a)},t.prototype.prod=function(e,i){var r=this,a=this.tryRunOnCpuOrThrow([e],function(){return r.cpuBackend.prod(e,i)});if(a)return a;var s=N.backend_util.computeOutAndReduceShapes(e.shape,i),o=s[0],l=s[1],u=N.util.sizeFromShape(l),c=e.as2D(-1,u),h=N.sumOutType(e.dtype);return this.reduce(c,"prod",h).reshape(o)},t.prototype.unsortedSegmentSum=function(e,i,r){var a=0,s=N.backend_util.getAxesPermutation([a],e.rank),o=e;s!=null&&(o=N.transpose(e,s),a=N.backend_util.getInnerMostAxes(1,e.rank)[0]);var l=KS.computeOutShape(o.shape,a,r),u=N.util.sizeFromShape([o.shape[a]]),c=o.as2D(-1,u),h=N.sumOutType(e.dtype),d=this.segOpCompute(c,"unsortedSegmentSum",i,h,r).reshape(l);return s!=null&&(d=N.transpose(d,N.backend_util.getUndoAxesPermutation(s))),d},t.prototype.segOpCompute=function(e,i,r,a,s){var o=e.shape[0],l=e.shape[1],u=KS.segOpComputeOptimalWindowSize(l,s),c={windowSize:u,inSize:l,batchSize:o,numSegments:s},h=new t9(c,i),d=this.compileAndRun(h,[e,r],a);return d.shape[1]===s?d:(r=N.range(0,s).tile([l/u]),this.segOpCompute(d,i,r,a,s))},t.prototype.argMinMaxReduce=function(e,i,r){var a=[i];if(N.backend_util.assertAxesAreInnerMostDims("arg"+r.charAt(0).toUpperCase()+r.slice(1),a,e.rank),!N.env().getBool("WEBGL_PACK_REDUCE")||e.rank<=2){var s=N.backend_util.computeOutAndReduceShapes(e.shape,a),o=s[0],l=s[1],u=N.util.sizeFromShape(l),c=e.as2D(-1,u);return this.argReduce(c,r).reshape(o)}return this.argReducePacked(e,r)},t.prototype.argMin=function(e,i){return this.argMinMaxReduce(e,i,"min")},t.prototype.argMax=function(e,i){return this.argMinMaxReduce(e,i,"max")},t.prototype.cumsum=function(e,i,r,a){if(i!==e.rank-1)throw new Error("WebGL cumsum shader expects an inner-most axis="+(e.rank-1)+" "+("but got axis="+i));for(var s=e.shape[i],o=e,l=0;l<=Math.ceil(Math.log2(s))-1;l++){var u=new lS(e.shape,!1,a),c=u.getCustomSetupFunc(l),h=o;o=this.compileAndRun(u,[o],o.dtype,c),h.dispose()}if(r){var u=new lS(e.shape,r,a),h=o;o=this.compileAndRun(u,[o]),h.dispose()}return o},t.prototype.equal=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,GM,"bool");var r=new wt(OM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.notEqual=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,YM,"bool");var r=new wt(EM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.less=function(e,i){var r=this,a=this.tryRunOnCpuOrThrow([e,i],function(){return r.cpuBackend.less(e,i)});if(a)return a;if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,KM,"bool");var s=new wt(DM,e.shape,i.shape);return this.compileAndRun(s,[e,i],"bool")},t.prototype.lessEqual=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,jM,"bool");var r=new wt(kM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.greater=function(e,i){var r=this,a=this.tryRunOnCpuOrThrow([e,i],function(){return r.cpuBackend.greater(e,i)});if(a)return a;if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,$M,"bool");var s=new wt(FM,e.shape,i.shape);return this.compileAndRun(s,[e,i],"bool")},t.prototype.greaterEqual=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,XM,"bool");var r=new wt(WM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.logicalNot=function(e){var i=new Re(e.shape,z9);return this.compileAndRun(i,[e])},t.prototype.logicalAnd=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,JM,"bool");var r=new wt(UM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.logicalOr=function(e,i){if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,ZM,"bool");var r=new wt(BM,e.shape,i.shape);return this.compileAndRun(r,[e,i],"bool")},t.prototype.select=function(e,i,r){var a=new n9(e.rank,i.shape,i.rank);return this.compileAndRun(a,[e,i,r],N.upcastType(i.dtype,r.dtype))},t.prototype.where=function(e){N.backend_util.warn("tf.where() in webgl locks the UI thread. Call tf.whereAsync() instead");var i=e.dataSync();return Y9(e.shape,i)},t.prototype.topk=function(e,i,r){var a=e.dataSync();return G9(a,e.shape,e.dtype,i,r)},t.prototype.min=function(e,i){N.backend_util.assertAxesAreInnerMostDims("min",i,e.rank);var r=N.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=N.util.sizeFromShape(s),l=e.as2D(-1,o);return this.reduce(l,"min",l.dtype).reshape(a)},t.prototype.minimum=function(e,i){var r=this,a=this.tryRunOnCpuOrThrow([e,i],function(){return r.cpuBackend.minimum(e,i)});if(a)return a;var s=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(e5,e.shape,i.shape):new wt(PM,e.shape,i.shape);return this.compileAndRun(s,[e,i])},t.prototype.mod=function(e,i){var r=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(t5,e.shape,i.shape):new wt(_M,e.shape,i.shape);return this.compileAndRun(r,[e,i])},t.prototype.maximum=function(e,i){var r=this,a=this.tryRunOnCpuOrThrow([e,i],function(){return r.cpuBackend.maximum(e,i)});if(a)return a;var s=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(QM,e.shape,i.shape):new wt(zM,e.shape,i.shape);return this.compileAndRun(s,[e,i])},t.prototype.all=function(e,i){N.backend_util.assertAxesAreInnerMostDims("all",i,e.rank);var r=N.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=N.util.sizeFromShape(s),l=e.as2D(-1,o);return this.reduce(l,"all",l.dtype).reshape(a)},t.prototype.any=function(e,i){N.backend_util.assertAxesAreInnerMostDims("any",i,e.rank);var r=N.backend_util.computeOutAndReduceShapes(e.shape,i),a=r[0],s=r[1],o=N.util.sizeFromShape(s),l=e.as2D(-1,o);return this.reduce(l,"any",l.dtype).reshape(a)},t.prototype.floorDiv=function(e,i){var r=CM,a="int32";if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,HM,a);var s=new wt(r,e.shape,i.shape);return this.compileAndRun(s,[e,i],a)},t.prototype.add=function(e,i){if(e.dtype==="complex64"&&i.dtype==="complex64")return this.complexSeparableBinaryOp(e,i,_d);var r=N.upcastType(e.dtype,i.dtype);if(this.shouldExecuteOnCPU([e,i])){var a=this.texData.get(e.dataId),s=this.texData.get(i.dataId),o=x_(e.shape,i.shape,a.values,s.values,r),l=o[0],u=o[1];return this.makeOutput(u,r,l)}if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,_d,r);var c=new wt(_d,e.shape,i.shape);return this.compileAndRun(c,[e,i],r)},t.prototype.packedUnaryOp=function(e,i,r){var a=new ls(e.shape,i);return this.compileAndRun(a,[e],r)},t.prototype.packedBinaryOp=function(e,i,r,a,s){s===void 0&&(s=!1);var o=new Ni(r,e.shape,i.shape,s);return this.compileAndRun(o,[e,i],a)},t.prototype.complexSeparableBinaryOp=function(e,i,r){var a=this,s=this.texData.get(e.dataId),o=this.texData.get(i.dataId),l=[[s.complexTensors.real,o.complexTensors.real],[s.complexTensors.imag,o.complexTensors.imag]].map(function(d){var p=d[0],f=d[1],m=a.makeComplexComponentTensorInfo(e,p),g=a.makeComplexComponentTensorInfo(i,f),v=new wt(r,e.shape,i.shape);return a.compileAndRun(v,[m,g],N.upcastType(p.dtype,f.dtype))}),u=l[0],c=l[1],h=this.complex(u,c);return u.dispose(),c.dispose(),h},t.prototype.makeComplexComponentTensorInfo=function(e,i){return{dataId:i.dataId,dtype:i.dtype,shape:e.shape}},t.prototype.addN=function(e){if(e.length===1)return e[0];if(e.length>N.env().get("WEBGL_MAX_TEXTURES_IN_SHADER")){var i=Math.floor(e.length/2),r=this.addN(e.slice(0,i)),a=this.addN(e.slice(i));return this.addN([r,a])}var s=e.map(function(c){return c.dtype}).reduce(function(c,h){return N.upcastType(c,h)}),o=e.map(function(c){return c.shape}),l=N.env().getBool("WEBGL_PACK"),u=l?new __(e[0].shape,o):new P_(e[0].shape,o);return this.compileAndRun(u,e,s)},t.prototype.subtract=function(e,i){if(e.dtype==="complex64"&&i.dtype==="complex64")return this.complexSeparableBinaryOp(e,i,Md);var r=N.upcastType(e.dtype,i.dtype);if(this.shouldExecuteOnCPU([e,i])){var a=this.texData.get(e.dataId),s=this.texData.get(i.dataId),o=B_(e.shape,i.shape,a.values,s.values,r),l=o[0],u=o[1];return this.makeOutput(u,r,l)}if(N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"))return this.packedBinaryOp(e,i,Md,e.dtype);var c=new wt(Md,e.shape,i.shape);return this.compileAndRun(c,[e,i],r)},t.prototype.pow=function(e,i){var r=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS"),a=r?new Ni(VM,e.shape,i.shape):new wt(RM,e.shape,i.shape),s=N.upcastType(e.dtype,i.dtype);return this.compileAndRun(a,[e,i],s)},t.prototype.ceil=function(e){if(this.shouldExecuteOnCPU([e])){var i=C_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,_S,e.dtype);var r=new Re(e.shape,_S);return this.compileAndRun(r,[e])},t.prototype.floor=function(e){if(this.shouldExecuteOnCPU([e])){var i=E_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,MS,e.dtype);var r=new Re(e.shape,MS);return this.compileAndRun(r,[e])},t.prototype.sign=function(e){var i=new Re(e.shape,g9);return this.compileAndRun(i,[e])},t.prototype.isNaN=function(e){var i=new Re(e.shape,v9);return this.compileAndRun(i,[e],"bool")},t.prototype.isInf=function(e){var i=new Re(e.shape,y9);return this.compileAndRun(i,[e],"bool")},t.prototype.isFinite=function(e){var i=new Re(e.shape,b9);return this.compileAndRun(i,[e],"bool")},t.prototype.round=function(e){var i=new Re(e.shape,w9);return this.compileAndRun(i,[e])},t.prototype.exp=function(e){if(this.shouldExecuteOnCPU([e])){var i=R_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,HS,e.dtype);var r=new Re(e.shape,HS);return this.compileAndRun(r,[e])},t.prototype.expm1=function(e){if(this.shouldExecuteOnCPU([e])){var i=O_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,VS,e.dtype);var r=new Re(e.shape,VS);return this.compileAndRun(r,[e])},t.prototype.softmax=function(e,i){var r=N.util.parseAxisParam([i],e.shape),a=N.max(e,r),s=N.backend_util.expandShapeToKeepDim(a.shape,r),o=this.subtract(e,a.reshape(s)),l=this.exp(o),u=this.sum(l,r).reshape(s);return N.div(l,u)},t.prototype.log=function(e){if(this.shouldExecuteOnCPU([e])){var i=D_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,M9,e.dtype);var r=new Re(e.shape,S9);return this.compileAndRun(r,[e])},t.prototype.log1p=function(e){var i=new Re(e.shape,L9);return this.compileAndRun(i,[e])},t.prototype.sqrt=function(e){var i=new Re(e.shape,I9);return this.compileAndRun(i,[e])},t.prototype.rsqrt=function(e){if(this.shouldExecuteOnCPU([e])){var i=W_(this.texData.get(e.dataId).values,e.dtype);return this.makeOutput(e.shape,e.dtype,i)}var r=new Re(e.shape,A9);return this.compileAndRun(r,[e])},t.prototype.reciprocal=function(e){var i=new Re(e.shape,B9);return this.compileAndRun(i,[e])},t.prototype.relu=function(e){var i;return N.env().getBool("WEBGL_PACK")?i=new ls(e.shape,qS):i=new Re(e.shape,US),this.compileAndRun(i,[e])},t.prototype.relu6=function(e){var i;return N.env().getBool("WEBGL_PACK")?i=new ls(e.shape,GS):i=new Re(e.shape,BS),this.compileAndRun(i,[e])},t.prototype.prelu=function(e,i){var r=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(nS,e.shape,i.shape):new wt(tS,e.shape,i.shape);return this.compileAndRun(r,[e,i])},t.prototype.elu=function(e){if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,YS,e.dtype);var i=new Re(e.shape,zS);return this.compileAndRun(i,[e])},t.prototype.eluDer=function(e,i){var r=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(qM,e.shape,i.shape):new wt(MM,e.shape,i.shape);return this.compileAndRun(r,[e,i])},t.prototype.selu=function(e){var i=new Re(e.shape,f9);return this.compileAndRun(i,[e])},t.prototype.int=function(e){var i=new Re(e.shape,P9);return this.compileAndRun(i,[e],"int32")},t.prototype.clip=function(e,i,r){var a;N.env().getBool("WEBGL_PACK_CLIP")?a=new i5(e.shape):a=new n5(e.shape);var s=a.getCustomSetupFunc(i,r);return this.compileAndRun(a,[e],null,s)},t.prototype.abs=function(e){if(this.shouldExecuteOnCPU([e])&&e.dtype!=="complex64"){var i=N_(this.texData.get(e.dataId).values);return this.makeOutput(e.shape,e.dtype,i)}if(N.env().getBool("WEBGL_PACK_UNARY_OPERATIONS"))return this.packedUnaryOp(e,WS,e.dtype);var r=new Re(e.shape,WS);return this.compileAndRun(r,[e])},t.prototype.complexAbs=function(e){var i=this.texData.get(e.dataId),r=new r5(e.shape),a=[this.makeComplexComponentTensorInfo(e,i.complexTensors.real),this.makeComplexComponentTensorInfo(e,i.complexTensors.imag)];return this.compileAndRun(r,a)},t.prototype.sigmoid=function(e){var i=new Re(e.shape,T9);return this.compileAndRun(i,[e])},t.prototype.softplus=function(e){var i=new Re(e.shape,N9);return this.compileAndRun(i,[e])},t.prototype.asin=function(e){var i=new Re(e.shape,x9);return this.compileAndRun(i,[e])},t.prototype.acos=function(e){var i=new Re(e.shape,C9);return this.compileAndRun(i,[e])},t.prototype.atan=function(e){var i=new Re(e.shape,R9);return this.compileAndRun(i,[e])},t.prototype.sinh=function(e){var i=new Re(e.shape,O9);return this.compileAndRun(i,[e])},t.prototype.cosh=function(e){var i=new Re(e.shape,E9);return this.compileAndRun(i,[e])},t.prototype.tanh=function(e){var i=new Re(e.shape,D9);return this.compileAndRun(i,[e])},t.prototype.asinh=function(e){var i=new Re(e.shape,k9);return this.compileAndRun(i,[e])},t.prototype.acosh=function(e){var i=new Re(e.shape,F9);return this.compileAndRun(i,[e])},t.prototype.atanh=function(e){var i=new Re(e.shape,W9);return this.compileAndRun(i,[e])},t.prototype.erf=function(e){var i=new Re(e.shape,U9);return this.compileAndRun(i,[e])},t.prototype.step=function(e,i){var r=new Re(e.shape,m9(i));return this.compileAndRun(r,[e])},t.prototype.conv2dByMatMul=function(e,i,r,a,s,o){var l=e.shape,u=this.texData.get(e.dataId),c=r.inChannels,h=l[0]*l[1]*l[2],d=r.outChannels,p=r.dataFormat==="channelsLast",f=!1,m=!1,g=(h===1||d===1)&&c>jS,v=l[2]%2!==0&&!!u.isPacked;if(g||!N.env().getBool("WEBGL_LAZILY_UNPACK")||!N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")||!v){var b=p?l[0]*l[1]*l[2]:l[0]*l[2]*l[3],w=N.reshape(e,[1,b,r.inChannels]),S=N.reshape(i,[1,r.inChannels,r.outChannels]),L=this.fusedBatchMatMul({a:w,b:S,transposeA:f,transposeB:m,bias:a,activation:s,preluActivationWeights:o});return N.reshape(L,r.outShape)}var x=p?l[0]*l[1]*(l[2]+1):l[0]*l[2]*(l[3]+1),C={dataId:e.dataId,shape:[1,x,r.inChannels],dtype:e.dtype},R=u.shape;u.shape=u.shape.slice(),u.shape[u.shape.length-2]++,N.util.assert(as(u.shape,C.shape),function(){return"packed reshape "+u.shape+" to "+C.shape+" isn't free"});var D=N.reshape(i,[1,r.inChannels,r.outChannels]),k=this.fusedBatchMatMul({a:C,b:D,transposeA:f,transposeB:m,bias:a,activation:s,preluActivationWeights:o}),W=this.texData.get(k.dataId);return N.util.assert(W.isPacked,function(){return"batchMatMul result is expected to be packed"}),u.shape=R,W.shape=r.outShape,N.engine().makeTensorFromDataId(k.dataId,r.outShape,k.dtype)},t.prototype.conv2dWithIm2Row=function(e,i,r,a,s,o){var l=r.filterWidth,u=r.filterHeight,c=r.inChannels,h=r.outWidth,d=r.outHeight,p=r.dataFormat,f=p==="channelsLast",m=l*u*c,g=d*h,v=[m,g],b=!0,w=!1,S=e.squeeze([0]),L=i.reshape([1,m,-1]),x=new D5(v,S.shape,r),C=this.compileAndRun(x,[S]).reshape([1,v[0],v[1]]),R=a!=null,D=o!=null,k=s?Ko(s,!0):null,W=new Kd(C.shape,[1,g,r.outChannels],b,w,R,k,D),F=[C,L];a&&F.push(a),D&&F.push(o);var P=this.compileAndRun(W,F);return f?P.reshape([1,d,h,r.outChannels]):P.reshape([1,r.outChannels,d,h])},t.prototype.fusedConv2d=function(e){var i=e.input,r=e.filter,a=e.convInfo,s=e.bias,o=e.activation,l=e.preluActivationWeights;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"))return this.conv2dByMatMul(i,r,a,s,o,l);if(N.env().getBool("WEBGL_CONV_IM2COL")&&i.shape[0]===1)return this.conv2dWithIm2Row(i,r,a,s,o,l);var u=s!=null,c=l!=null,h=o?Ko(o,!1):null,d=new iS(a,u,h,c),p=[i,r];return s&&p.push(s),l&&p.push(l),this.compileAndRun(d,p)},t.prototype.conv2d=function(e,i,r){if(r.filterHeight===1&&r.filterWidth===1&&r.dilationHeight===1&&r.dilationWidth===1&&r.strideHeight===1&&r.strideWidth===1&&(r.padInfo.type==="SAME"||r.padInfo.type==="VALID"))return this.conv2dByMatMul(e,i,r);if(N.env().getBool("WEBGL_CONV_IM2COL")&&e.shape[0]===1)return this.conv2dWithIm2Row(e,i,r);var a=new iS(r);return this.compileAndRun(a,[e,i])},t.prototype.conv2dDerInput=function(e,i,r){var a=new l5(r);return this.compileAndRun(a,[e,i])},t.prototype.conv2dDerFilter=function(e,i,r){var a=new o5(r);return this.compileAndRun(a,[e,i])},t.prototype.fusedDepthwiseConv2D=function(e){var i=e.input,r=e.filter,a=e.convInfo,s=e.bias,o=e.activation,l=e.preluActivationWeights,u=N.env().getBool("WEBGL_PACK_DEPTHWISECONV")&&a.strideWidth<=2&&a.outChannels/a.inChannels===1,c=o?Ko(o,u):null,h=[i,r],d=s!=null,p=l!=null;d&&h.push(s),p&&h.push(l);var f;return u?(f=new aS(a,d,c,p),this.compileAndRun(f,h)):(f=new rS(a,d,c,p),this.compileAndRun(f,h))},t.prototype.depthwiseConv2D=function(e,i,r){var a;return N.env().getBool("WEBGL_PACK_DEPTHWISECONV")&&r.strideWidth<=2&&r.outChannels/r.inChannels===1?(a=new aS(r),this.compileAndRun(a,[e,i])):(a=new rS(r),this.compileAndRun(a,[e,i]))},t.prototype.depthwiseConv2DDerInput=function(e,i,r){var a=new d5(r);return this.compileAndRun(a,[e,i])},t.prototype.depthwiseConv2DDerFilter=function(e,i,r){var a=new h5(r);return this.compileAndRun(a,[e,i])},t.prototype.conv3d=function(e,i,r){var a=new p5(r);return this.compileAndRun(a,[e,i])},t.prototype.conv3dDerInput=function(e,i,r){var a=new c5(r);return this.compileAndRun(a,[e,i])},t.prototype.conv3dDerFilter=function(e,i,r){var a=new u5(r);return this.compileAndRun(a,[e,i])},t.prototype.cast=function(e,i){return N.backend_util.castTensor(e,i,this)},t.prototype.unstack=function(e,i){for(var r=e.shape[i],a=new Array(e.rank-1),s=0,o=0;o<e.rank;o++)o!==i&&(a[s++]=e.shape[o]);var l=new Array(e.rank).fill(0),u=e.shape.slice();u[i]=1;for(var c=new Array(r),o=0;o<c.length;o++)l[i]=o,c[o]=this.slice(e,l,u).reshape(a);return c},t.prototype.avgPool3d=function(e,i){var r=new jd(i,"avg",!1);return this.compileAndRun(r,[e],"float32")},t.prototype.avgPool3dBackprop=function(e,i,r){var a=new xM(r);return this.compileAndRun(a,[e],i.dtype)},t.prototype.maxPool3d=function(e,i){var r=new jd(i,"max",!1);return this.compileAndRun(r,[e],"float32")},t.prototype.maxPool3dBackprop=function(e,i,r,a){var s=!0,o=new jd(a,"max",s),l=this.compileAndRun(o,[i]),u=new B5(a),c=this.compileAndRun(u,[e,l],i.dtype);return l.dispose(),c},t.prototype.resizeBilinear=function(e,i,r,a){var s=N.env().getBool("WEBGL_PACK_IMAGE_OPERATIONS")?new X5(e.shape,i,r,a):new $5(e.shape,i,r,a);return this.compileAndRun(s,[e],"float32")},t.prototype.resizeBilinearBackprop=function(e,i,r){var a=new j5(e,i,r);return this.compileAndRun(a,[e])},t.prototype.resizeNearestNeighbor=function(e,i,r,a){var s=new Z5(e.shape,i,r,a);return this.compileAndRun(s,[e])},t.prototype.resizeNearestNeighborBackprop=function(e,i,r){var a=new J5(e,i,r);return this.compileAndRun(a,[e])},t.prototype.multinomial=function(e,i,r,a){var s=i?e:N.softmax(e),o=s.shape[0],l=s.shape[1],u=new z5(o,l,r),c=u.getCustomSetupFunc(a);return this.compileAndRun(u,[s],"int32",c)},t.prototype.oneHot=function(e,i,r,a){var s=new P5(e.size,i,r,a);return this.compileAndRun(s,[e])},t.prototype.diag=function(e){var i=new y5(e.size);return this.compileAndRun(i,[e])},t.prototype.cropAndResize=function(e,i,r,a,s,o){var l=new f5(e.shape,i.shape,a,s,o);return this.compileAndRun(l,[e,i,r],"float32")},t.prototype.depthToSpace=function(e,i,r){N.util.assert(i>1,function(){return"blockSize should be > 1 for depthToSpace, but was: "+i});var a=e.shape[0],s=r==="NHWC"?e.shape[1]:e.shape[2],o=r==="NHWC"?e.shape[2]:e.shape[3],l=r==="NHWC"?e.shape[3]:e.shape[1],u=s*i,c=o*i,h=l/(i*i),d=r==="NHWC"?[a,u,c,h]:[a,h,u,c],p=new v5(d,i,r);return this.compileAndRun(p,[e])},t.prototype.split=function(e,i,r){return V9(e,i,r)},t.prototype.scatterND=function(e,i,r){var a=N.backend_util.calculateShapes(i,e,r),s=a.sliceRank,o=a.numUpdates,l=a.sliceSize,u=a.strides,c=a.outputSize,h=[c/l,l],d=e.reshape([o,s]),p=i.reshape([o,l]);if(c===0)return N.backend_util.reshapeTensor(N.tensor([]),r);var f=N.scalar(0),m=new ES(o,s,d.rank,p.rank,u,h),g=this.compileAndRun(m,[p,d,f]);return g.reshape(r)},t.prototype.sparseToDense=function(e,i,r,a){var s=N.backend_util.calculateShapes(i,e,r),o=s.sliceRank,l=s.numUpdates,u=s.strides,c=s.outputSize,h=!1,d=new ES(l,o,e.rank,i.rank,u,[c,1],h),p=this.compileAndRun(d,[i,e,a]);return p.reshape(r)},t.prototype.fft=function(e){var i=!1;return this.fftImpl(e,i)},t.prototype.ifft=function(e){var i=!0;return this.fftImpl(e,i)},t.prototype.fftImpl=function(e,i){var r=this.texData.get(e.dataId),a=new cS(uS.REAL,e.shape,i),s=new cS(uS.IMAG,e.shape,i),o=[this.makeComplexComponentTensorInfo(e,r.complexTensors.real),this.makeComplexComponentTensorInfo(e,r.complexTensors.imag)],l=this.compileAndRun(a,o),u=this.compileAndRun(s,o),c=this.complex(l,u).as2D(e.shape[0],e.shape[1]);return l.dispose(),u.dispose(),c},t.prototype.gatherND=function(e,i){var r=i.shape,a=r[r.length-1],s=N.backend_util.prepareAndValidate(e,i),o=s[0],l=s[1],u=s[2],c=s[3],h=i.reshape([l,a]),d=e.reshape([e.size/u,u]),p=new N5(a,c,[l,u]),f=this.compileAndRun(p,[d,h]);return f.reshape(o)},t.prototype.fill=function(e,i,r){if(r=r||N.util.inferDtype(i),r==="string"){var a=N.util.getArrayFromDType(r,N.util.sizeFromShape(e));return a.fill(i),N.engine().makeTensor(a,e,r,this)}else{var s=new I5(e,i),o=s.getCustomSetupFunc(i);return this.compileAndRun(s,[],r,o)}},t.prototype.onesLike=function(e){if(e.dtype==="string")throw new Error("onesLike is not supported under string dtype");return this.fill(e.shape,1,e.dtype)},t.prototype.zerosLike=function(e){return this.fill(e.shape,e.dtype==="string"?"":0,e.dtype)},t.prototype.linspace=function(e,i,r){return N.backend_util.linspaceImpl(e,i,r)},t.prototype.makeTensorInfo=function(e,i,r){var a=this.write(r,e,i);return this.texData.get(a).usage=null,{dataId:a,shape:e,dtype:i}},t.prototype.makeOutput=function(e,i,r){var a=this.makeTensorInfo(e,i,r).dataId;return N.engine().makeTensorFromDataId(a,e,i,this)},t.prototype.unpackTensor=function(e){var i=new H9(e.shape);return this.runWebGLProgram(i,[e],e.dtype)},t.prototype.packTensor=function(e){var i=new V5(e.shape),r=!0;return this.runWebGLProgram(i,[e],e.dtype,null,r)},t.prototype.packedReshape=function(e,i){var r=[dr(e.shape)].concat(pr(e.shape)),a={dtype:e.dtype,shape:r,dataId:e.dataId},s=[dr(i)].concat(pr(i)),o=new OS(s,r),l=!0,u=this.runWebGLProgram(o,[a],e.dtype,null,l);return{dataId:u.dataId,shape:i,dtype:u.dtype}},t.prototype.decode=function(e){var i=this.texData.get(e),r=i.isPacked,a=i.shape,s=i.dtype,o=Po(a),l;r?l=new g5(o):l=new m5(o);var u=!0,c=this.runWebGLProgram(l,[{shape:o,dtype:s,dataId:e}],s,null,u);return{dtype:s,shape:a,dataId:c.dataId}},t.prototype.runWebGLProgram=function(e,i,r,a,s){var o=this;s===void 0&&(s=!1);var l=this.makeTensorInfo(e.outputShape,r),u=this.texData.get(l.dataId);if(e.packedOutput&&(u.isPacked=!0),e.outPackingScheme===es.DENSE){var c=ns(e.outputShape);u.texShape=c.map(function(w){return w*2})}if(e.outTexUsage!=null&&(u.usage=e.outTexUsage),N.util.sizeFromShape(l.shape)===0)return u.values=N.util.getTypedArrayFromDType(l.dtype,0),l;var h=[],d=i.map(function(w){if(w.dtype==="complex64")throw new Error("GPGPUProgram does not support complex64 input. For complex64 dtypes, please separate the program into real and imaginary parts.");var S=o.texData.get(w.dataId);if(S.texture==null){if(!e.packedInputs&&N.util.sizeFromShape(w.shape)<=N.env().getNumber("WEBGL_SIZE_UPLOAD_UNIFORM"))return{shape:w.shape,texData:null,isUniform:!0,uniformValues:S.values};e.packedInputs&&(S.isPacked=!0,S.shape=w.shape)}else if(!!S.isPacked!==!!e.packedInputs)w=S.isPacked?o.unpackTensor(w):o.packTensor(w),h.push(w),S=o.texData.get(w.dataId);else if(S.isPacked&&!as(S.shape,w.shape)){var L=w,x=w.shape;w.shape=S.shape,w=o.packedReshape(w,x),h.push(w),S=o.texData.get(w.dataId),L.shape=x}return o.uploadToGPU(w.dataId),{shape:w.shape,texData:S,isUniform:!1}});this.uploadToGPU(l.dataId);var p={shape:l.shape,texData:u,isUniform:!1},f=E5(e,d,p),m=this.getAndSaveBinary(f,function(){return R5(o.gpgpu,e,d,p)}),g=this.activeTimers!=null,v;if(g&&(v=this.startTimer()),O5(this.gpgpu,m,d,p,a),h.forEach(function(w){return o.disposeIntermediateTensorInfo(w)}),g&&(v=this.endTimer(v),this.activeTimers.push({name:e.constructor.name,query:this.getQueryTime(v)})),!N.env().getBool("WEBGL_LAZILY_UNPACK")&&u.isPacked&&s===!1){var b=this.unpackTensor(l);return this.disposeIntermediateTensorInfo(l),b}return l},t.prototype.compileAndRun=function(e,i,r,a,s){s===void 0&&(s=!1),r=r||i[0].dtype;var o=this.runWebGLProgram(e,i,r,a,s);return N.engine().makeTensorFromDataId(o.dataId,o.shape,o.dtype)},t.prototype.getAndSaveBinary=function(e,i){return e in this.binaryCache||(this.binaryCache[e]=i()),this.binaryCache[e]},t.prototype.getTextureManager=function(){return this.textureManager},t.prototype.dispose=function(){var e=this;if(this.disposed)return;if(!N.env().getBool("IS_TEST")){var i=Object.keys(this.binaryCache);i.forEach(function(r){e.gpgpu.deleteProgram(e.binaryCache[r].webGLProgram),delete e.binaryCache[r]})}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},t.prototype.floatPrecision=function(){var e=this;return this.floatPrecisionValue==null&&(this.floatPrecisionValue=N.tidy(function(){if(!N.env().get("WEBGL_RENDER_FLOAT32_ENABLED")){var i=N.env().getBool("DEBUG");N.env().set("DEBUG",!1);var r=e.abs(N.scalar(1e-8)).dataSync()[0];if(N.env().set("DEBUG",i),r>0)return 32}return 16})),this.floatPrecisionValue},t.prototype.epsilon=function(){return this.floatPrecision()===32?K9:j9},t.prototype.uploadToGPU=function(e){var i,r=this.texData.get(e),a=r.shape,s=r.dtype,o=r.values,l=r.texture,u=r.usage,c=r.isPacked;if(l!=null)return;var h=this.activeTimers!=null,d;h&&(d=N.util.now());var p=r.texShape;if(p==null&&(p=z0(a,c),r.texShape=p),o!=null){var f=Po(a),m=void 0,g=p[1],v=p[0],b=o instanceof Uint8Array;c?(i=ta(p[0],p[1]),g=i[0],v=i[1],m=new L5(f,[v,g],b)):m=new S5(f,[v,g],b);var w=this.makeTensorInfo([v,g],s);b?this.texData.get(w.dataId).usage=rn.PIXELS:this.texData.get(w.dataId).usage=rn.UPLOAD,this.gpgpu.uploadDenseMatrixToTexture(this.getTexture(w.dataId),g,v,o);var S=!0,L=this.runWebGLProgram(m,[w],s,null,S),x=this.texData.get(L.dataId);r.texture=x.texture,r.texShape=x.texShape,r.isPacked=x.isPacked,r.usage=x.usage,this.disposeIntermediateTensorInfo(w),this.texData.delete(L.dataId),r.values=null,h&&(this.uploadWaitMs+=N.util.now()-d)}else{var C=this.acquireTexture(p,u,s,c);r.texture=C}},t.prototype.convertAndCacheOnCPU=function(e,i){var r=this.texData.get(e),a=r.dtype;return this.releaseGPUData(e),i!=null&&(r.values=Q9(i,a)),r.values},t.prototype.acquireTexture=function(e,i,r,a){if(this.numBytesInGPU+=this.computeBytes(e,r),!this.warnedAboutMemory&&this.numBytesInGPU>this.numMBBeforeWarning*1024*1024){var s=(this.numBytesInGPU/1024/1024).toFixed(2);this.warnedAboutMemory=!0,console.warn("High memory usage in GPU: "+s+" MB, most likely due to a memory leak")}return this.textureManager.acquireTexture(e,i,a)},t.prototype.computeBytes=function(e,i){return e[0]*e[1]*N.util.bytesPerElement(i)},t.prototype.tryRunOnCpuOrThrow=function(e,i){if(this.shouldExecuteOnCPU(e))try{return i()}catch(r){if(N.env().getBool("IS_TEST"))throw new Error("CPU forwarding failed")}return null},t}(N.KernelBackend);function Q9(n,t){if(t==="float32"||t==="complex64")return n;if(t==="int32"||t==="bool"){for(var e=t==="int32"?new Int32Array(n.length):new Uint8Array(n.length),i=0;i<e.length;++i)e[i]=Math.round(n[i]);return e}else throw new Error("Unknown dtype "+t)}var e6="2.6.0";function XS(){N.env().set("WEBGL_FORCE_F16_TEXTURES",!0)}N.device_util.isBrowser()&&N.registerBackend("webgl",function(){return new $S},2);var t6={forceHalfFloat:XS},JS="if (isnan(x)) return x;",n6=`
  if (isnan(a)) return a;
  if (isnan(b)) return b;
`,i6=`
  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 jo(n){return function(t){var e=t.inputs,i=t.backend,r=e.x,a=i,s=new Re(r.shape,n);return a.runWebGLProgram(s,[r],r.dtype)}}function Xd(n,t,e,i){return function(r){var a=r.inputs,s=r.backend,o=a,l=o.a,u=o.b,c=s,h=N.env().getBool("WEBGL_PACK_BINARY_OPERATIONS")?new Ni(t,l.shape,u.shape,!!e):new wt(n,l.shape,u.shape),d=i||l.dtype,p=c.runWebGLProgram(h,[l,u],d);return p}}var r6=n6+`
  return atan(a, b);
`,a6=`
  vec4 result = atan(a, b);
  vec4 isNaN = min(vec4(isnan(a)) + vec4(isnan(b)), vec4(1.0));
  `+i6+`
  return result;
`,s6=Xd(r6,a6),o6={kernelName:N.Atan2,backendName:"webgl",kernelFunc:s6};function Jd(n){var t=n.inputs,e=n.backend,i=t.x;return e.incRef(i.dataId),{dataId:i.dataId,shape:i.shape,dtype:i.dtype}}var l6={kernelName:N.Identity,backendName:"webgl",kernelFunc:Jd};function u6(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x;na(r,"avgPool");var a=i.filterSize,s=i.strides,o=i.pad,l=i.dimRoundingMode,u=1;N.util.assert(N.backend_util.eitherStridesOrDilationsAreOne(s,u),function(){return"Error in avgPool: Either strides or dilations must be 1. "+("Got strides "+s+" and dilations '"+u+"'")});var c=N.backend_util.computePool2DInfo(r.shape,a,s,u,o,l);if(c.filterWidth===1&&c.filterHeight===1&&N.util.arraysEqual(c.inShape,c.outShape))return Jd({inputs:{x:r},backend:e});var h=new os(c,"avg",!1);return e.runWebGLProgram(h,[r],"float32")}var c6={kernelName:N.AvgPool,backendName:"webgl",kernelFunc:u6};function h6(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.dy,a=t.input,s=a;na([r,a],"avgPoolBackprop");var o=i.filterSize,l=i.strides,u=i.pad,c=N.backend_util.computePool2DInfo(s.shape,o,l,1,u),h=new NM(c);return e.runWebGLProgram(h,[r],s.dtype)}var d6={kernelName:N.AvgPoolBackprop,backendName:"webgl",kernelFunc:h6};var p6=function(){function n(t,e,i,r,a,s){this.outputShape=[],this.variableNames=["x","mean","variance"],N.backend_util.assertAndGetBroadcastShape(t,e),N.backend_util.assertAndGetBroadcastShape(t,i);var o="0.0";r!=null&&(N.backend_util.assertAndGetBroadcastShape(t,r),this.variableNames.push("offset"),o="getOffsetAtOutCoords()");var l="1.0";a!=null&&(N.backend_util.assertAndGetBroadcastShape(t,a),this.variableNames.push("scale"),l="getScaleAtOutCoords()"),this.outputShape=t,this.userCode=`
      void main() {
        float x = getXAtOutCoords();
        float mean = getMeanAtOutCoords();
        float variance = getVarianceAtOutCoords();
        float offset = `+o+`;
        float scale = `+l+`;
        float inv = scale * inversesqrt(variance + float(`+s+`));
        setOutput(dot(vec3(x, -mean, offset), vec3(inv, inv, 1)));
      }
    `}return n}();var f6=function(){function n(t,e,i,r,a,s){this.packedInputs=!0,this.packedOutput=!0,this.variableNames=["x","mean","variance"],N.backend_util.assertAndGetBroadcastShape(t,e),N.backend_util.assertAndGetBroadcastShape(t,i);var o="vec4(0.0)";r!=null&&(N.backend_util.assertAndGetBroadcastShape(t,r),this.variableNames.push("offset"),o="getOffsetAtOutCoords()");var l="vec4(1.0)";a!=null&&(N.backend_util.assertAndGetBroadcastShape(t,a),this.variableNames.push("scale"),l="getScaleAtOutCoords()"),this.outputShape=t,this.userCode=`
      void main() {
        vec4 offset = `+o+`;
        vec4 scale = `+l+`;

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

        vec4 inv = scale * inversesqrt(variance + vec4(`+s+`));

        setOutput((x - mean) * inv + offset);
      }
    `}return n}();var m6=function(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x,a=t.mean,s=t.variance,o=t.offset,l=t.scale;N.util.assert(a.shape.length===s.shape.length,function(){return"Batch normalization gradient requires mean and variance to have equal ranks."}),N.util.assert(o==null||a.shape.length===o.shape.length,function(){return"Batch normalization gradient requires mean and offset to have equal ranks."}),N.util.assert(l==null||a.shape.length===l.shape.length,function(){return"Batch normalization gradient requires mean and scale to have equal ranks."});var u=i.varianceEpsilon;u==null&&(u=.001);var c=[r,a,s],h=null;o!=null&&(h=o.shape,c.push(o));var d=null;l!=null&&(d=l.shape,c.push(l));var p=N.env().getBool("WEBGL_PACK_NORMALIZATION")?new f6(r.shape,a.shape,s.shape,h,d,u):new p6(r.shape,a.shape,s.shape,h,d,u),f=e.runWebGLProgram(p,c,c[0].dtype);return f},g6={kernelName:N.FusedBatchNorm,backendName:"webgl",kernelFunc:m6};var v6=JS+`
  return cos(x);
`,y6=jo(v6),b6={kernelName:N.Cos,backendName:"webgl",kernelFunc:y6};var w6=`
if (a == b) {
  return 1.0;
};
return a / b;`,S6=`
  // 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;
`,L6=Xd(w6,S6,!0),I6={kernelName:N.Div,backendName:"webgl",kernelFunc:L6};var A6=function(){function n(t){this.variableNames=["Image"],this.outputShape=[];var e=t[2];this.outputShape=t,this.userCode=`
        void main() {
          ivec4 coords = getOutputCoords();
          int x = coords[2];

          int coordX = `+e+` - x;
          float outputValue;
          if(coordX >= 0 && coordX < `+e+`) {
            outputValue = getImage(coords[0], coords[1], coordX, coords[3]);
          } else {
            outputValue = getImage(coords[0], coords[1], coords[2], coords[3]);
          }
          setOutput(outputValue);
        }
    `}return n}();var T6={kernelName:N.FlipLeftRight,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=t.image,r=e,a=new A6(i.shape),s=r.runWebGLProgram(a,[i],i.dtype);return s}};var N6=function(){function n(t){this.variableNames=["A"];var e=Wt(),i=t[0],r=t[1];this.outputShape=t,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(`+r+".0, "+i+`.0);

        vec4 values = `+e.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));
      }
    `}return n}();var x6=function(){function n(t){this.variableNames=["A"],this.packedInputs=!1,this.packedOutput=!0;var e=Wt(),i=t[0],r=t[1];this.outputShape=t,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(`+r+".0, "+i+`.0);
            vec4 values = `+e.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);
          }
        }

        `+e.output+` = result;
      }
    `}return n}();var R6={kernelName:N.FromPixels,backendName:"webgl",kernelFunc:C6},la;function C6(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.pixels,a=i.numChannels,s=typeof HTMLVideoElement!="undefined"&&r instanceof HTMLVideoElement,o=typeof HTMLImageElement!="undefined"&&r instanceof HTMLImageElement,l=s?[r.videoWidth,r.videoHeight]:[r.width,r.height],u=l[0],c=l[1],h=[c,u],d=[c,u,a];(o||s)&&(la==null&&(la=document.createElement("canvas").getContext("2d")),la.canvas.width=u,la.canvas.height=c,la.drawImage(r,0,0,u,c),r=la.canvas);var p=e.makeTensorInfo(h,"int32");e.texData.get(p.dataId).usage=rn.PIXELS,e.gpgpu.uploadPixelDataToTexture(e.getTexture(p.dataId),r);var f=N.env().getBool("WEBGL_PACK")?new x6(d):new N6(d),m=e.runWebGLProgram(f,[p],"int32");return e.disposeData(p.dataId),m}function O6(n){for(var t=[];t.length===0||t[t.length-1].outSize!==1;){var e=t.length?t[t.length-1].outSize:n[1],i=N.backend_util.computeOptimalWindowSize(e);t.push({inSize:e,windowSize:i,outSize:Math.ceil(e/i)})}return t}function E6(n,t,e,i){for(var r=O6(n.shape),a=n,s=0;s<r.length;s++){var o=r[s],l=o.inSize,u=o.windowSize,c=o.outSize,h=new RS({windowSize:u,inSize:l,batchSize:n.shape[0],outSize:c},e),d=a;a=i.runWebGLProgram(h,[a],t),d.dataId!==n.dataId&&i.disposeData(d.dataId)}return a}function D6(n,t,e){var i=[dr(n.shape)].concat(pr(n.shape)),r={dtype:n.dtype,shape:i,dataId:n.dataId},a=[dr(t)].concat(pr(t)),s=new OS(a,i),o=!0,l=e.runWebGLProgram(s,[r],n.dtype,null,o);return{dataId:l.dataId,shape:t,dtype:l.dtype}}function Zd(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x,a=i.shape,s=e,o=N.util.sizeFromShape(r.shape),l=N.util.inferFromImplicitShape(a,o),u=N.util.sizeFromShape(l);N.util.assert(o===u,function(){return"The new shape ("+l+") has "+u+" elements and the old "+("shape ("+r.shape+") has "+o+" elements. The new shape and old ")+"shape must have the same number of elements."});var c=s.texData.get(r.dataId);return c.isPacked&&!as(r.shape,l)&&!(c.texture!==null&&as(c.shape,l))?D6(r,l,s):(s.incRef(r.dataId),{dataId:r.dataId,shape:l,dtype:r.dtype})}var k6={kernelName:N.Reshape,backendName:"webgl",kernelFunc:Zd};function F6(n,t,e,i){var r=N.util.sizeFromShape(t),a=N.util.sizeFromShape(n.shape),s=a/r,o=Zd({inputs:{x:n},attrs:{shape:[s,r]},backend:i}),l=E6(o,n.dtype,"max",i),u=Zd({inputs:{x:l},attrs:{shape:e},backend:i});return i.disposeIntermediateTensorInfo(o),i.disposeIntermediateTensorInfo(l),u}var U6=function(){function n(t,e){this.variableNames=["A"];for(var i=new Array(t.length),r=0;r<i.length;r++)i[r]=t[e[r]];this.outputShape=i,this.rank=i.length;var a=Ze(this.rank),s=W6(e);this.userCode=`
    void main() {
      `+a+` resRC = getOutputCoords();
      setOutput(getA(`+s+`));
    }
    `}return n}();function W6(n){var t=n.length;if(t>6)throw Error("Transpose for rank "+t+" is not yet supported");for(var e=["resRC.x","resRC.y","resRC.z","resRC.w","resRC.u","resRC.v"],i=new Array(t),r=0;r<n.length;r++)i[n[r]]=e[r];return i.join()}var B6=function(){function n(t,e){this.variableNames=["A"],this.packedInputs=!0,this.packedOutput=!0;for(var i=new Array(t.length),r=0;r<i.length;r++)i[r]=t[e[r]];if(this.outputShape=i,this.rank=i.length,this.rank>6)throw Error("Packed transpose for rank "+this.rank+" is not yet supported.");for(var a=Ze(this.rank),s=Y0("rc",this.rank),o=new Array(this.rank),r=0;r<e.length;r++)o[e[r]]=s[r];var l="vec2("+o.slice(-2).join()+")",u="++"+s[this.rank-1]+" < "+i[this.rank-1],c="getChannel(getA("+o.join()+"), "+l+")";this.userCode=`
    void main() {
      `+a+` rc = getOutputCoords();
      vec4 result = vec4(0.);
      result[0] = `+c+`;
      if(`+u+`) {
        result[1] = `+c+`;
      }
      --`+s[this.rank-1]+`;
      if(++`+s[this.rank-2]+" < "+i[this.rank-2]+`) {
        result[2] = `+c+`;
        if(`+u+`) {
          result[3] = `+c+`;
        }
      }
      setOutput(result);
    }
    `}return n}();function ZS(n,t,e){var i=N.env().getBool("WEBGL_PACK_ARRAY_OPERATIONS")?new B6(n.shape,t):new U6(n.shape,t);return e.runWebGLProgram(i,[n],n.dtype)}var z6={kernelName:N.Max,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.attrs,i=n.backend,r=t.x,a=e,s=a.reductionIndices,o=a.keepDims,l=i,u=r.shape.length,c=N.util.parseAxisParam(s,r.shape),h=c,d=N.backend_util.getAxesPermutation(h,u),p=d!=null,f=l.shouldExecuteOnCPU([r]),m=r;if(p){if(f){for(var g=l.texData.get(m.dataId),v=g.values,b=new Array(u),w=0;w<b.length;w++)b[w]=r.shape[d[w]];var S=G0(v,r.shape,r.dtype,d,b);m=l.makeTensorInfo(b,r.dtype);var L=l.texData.get(m.dataId);L.values=S}else m=ZS(r,d,l);h=N.backend_util.getInnerMostAxes(h.length,u)}N.backend_util.assertAxesAreInnerMostDims("max",h,u);var x=N.backend_util.computeOutAndReduceShapes(m.shape,h),C=x[0],R=x[1],D=C;o&&(D=N.backend_util.expandShapeToKeepDim(C,c));var k;if(f){var g=l.texData.get(m.dataId),v=g.values,W=k_(v,N.util.sizeFromShape(R),D,r.dtype);k=l.makeTensorInfo(D,r.dtype);var F=l.texData.get(k.dataId);F.values=W}else k=F6(m,R,D,l);return p&&l.disposeIntermediateTensorInfo(m),k}};function P6(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.x;na(r,"maxPool");var a=i.filterSize,s=i.strides,o=i.pad,l=i.dimRoundingMode,u=1;N.util.assert(N.backend_util.eitherStridesOrDilationsAreOne(s,u),function(){return"Error in maxPool: Either strides or dilations must be 1. "+("Got strides "+s+" and dilations '"+u+"'")});var c=N.backend_util.computePool2DInfo(r.shape,a,s,u,o,l);if(c.filterWidth===1&&c.filterHeight===1&&N.util.arraysEqual(c.inShape,c.outShape))return Jd({inputs:{x:r},backend:e});var h=new os(c,"max",!1);return e.runWebGLProgram(h,[r],r.dtype)}var _6={kernelName:N.MaxPool,backendName:"webgl",kernelFunc:P6};function M6(n){var t=n.inputs,e=n.backend,i=n.attrs,r=t.dy,a=t.input,s=t.output,o=a;na([a,s],"maxPoolBackprop");var l=i.filterSize,u=i.strides,c=i.pad,h=i.dimRoundingMode,d=N.backend_util.computePool2DInfo(o.shape,l,u,1,c,h),p=!0,f=new os(d,"max",p),m=e.runWebGLProgram(f,[o],o.dtype),g=new U5(d),v=e.runWebGLProgram(g,[r,m],o.dtype);return e.disposeIntermediateTensorInfo(m),v}var H6={kernelName:N.MaxPoolBackprop,backendName:"webgl",kernelFunc:M6};function V6(n,t,e,i){var r=new os(e,"max",!1),a=i.runWebGLProgram(r,[n],"float32");r=new os(e,"max",!0,!0,t);var s=i.runWebGLProgram(r,[n],"float32");return[a,s]}var q6={kernelName:N.MaxPoolWithArgmax,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.attrs,i=n.backend,r=t.x,a=e,s=a.filterSize,o=a.strides,l=a.pad,u=a.includeBatchInIndex,c=i;N.util.assert(r.shape.length===4,function(){return"Error in maxPool: input must be rank 4 but got rank "+r.shape.length+"."});var h=[1,1];N.util.assert(N.backend_util.eitherStridesOrDilationsAreOne(o,h),function(){return"Error in maxPool: Either strides or dilations must be 1. "+("Got strides "+o+" and dilations '"+h+"'")});var d=N.backend_util.computePool2DInfo(r.shape,s,o,h,l),p=V6(r,u,d,c),f=p[0],m=p[1];return[f,m]}};var G6={kernelName:N.NonMaxSuppressionV3,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=n.attrs;N.backend_util.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");var r=t,a=r.boxes,s=r.scores,o=i,l=o.maxOutputSize,u=o.iouThreshold,c=o.scoreThreshold,h=e,d=h.readSync(a.dataId),p=h.readSync(s.dataId),f=l,m=u,g=c;return N.kernel_impls.nonMaxSuppressionV3Impl(d,p,f,m,g)}};var Y6=N.kernel_impls.nonMaxSuppressionV4Impl,K6={kernelName:N.NonMaxSuppressionV4,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=n.attrs;N.backend_util.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");var r=t,a=r.boxes,s=r.scores,o=i,l=o.maxOutputSize,u=o.iouThreshold,c=o.scoreThreshold,h=o.padToMaxOutputSize,d=e,p=d.readSync(a.dataId),f=d.readSync(s.dataId),m=Y6(p,f,l,u,c,h),g=m.selectedIndices,v=m.validOutputs;return[g,v]}};var j6=N.kernel_impls.nonMaxSuppressionV5Impl,$6={kernelName:N.NonMaxSuppressionV5,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.backend,i=n.attrs;N.backend_util.warn("tf.nonMaxSuppression() in webgl locks the UI thread. Call tf.nonMaxSuppressionAsync() instead");var r=t,a=r.boxes,s=r.scores,o=i,l=o.maxOutputSize,u=o.iouThreshold,c=o.scoreThreshold,h=o.softNmsSigma,d=e,p=d.readSync(a.dataId),f=d.readSync(s.dataId),m=l,g=u,v=c,b=h,w=j6(p,f,m,g,v,b),S=w.selectedIndices,L=w.selectedScores;return[S,L]}};var X6=function(){function n(t,e,i,r){this.variableNames=["Image"],this.outputShape=[];var a=t[1],s=t[2],o=Math.sin(e).toFixed(3),l=Math.cos(e).toFixed(3);this.outputShape=t;var u=N.backend_util.getImageCenter(r,a,s),c=u[0],h=u[1],d=c.toFixed(3),p=h.toFixed(3),f="";typeof i=="number"?f="float outputValue = "+i.toFixed(2)+";":f=`
        vec3 fill = vec3(`+i.join(",")+`);
        float outputValue = fill[coords[3]];`,this.userCode=`
        void main() {
          ivec4 coords = getOutputCoords();
          int x = coords[2];
          int y = coords[1];
          float coordXFloat = (float(x) - `+d+") * "+l+" - (float(y) - "+p+") * "+o+`;
          float coordYFloat = (float(x) - `+d+") * "+o+" + (float(y) - "+p+") * "+l+`;
          int coordX = int(round(coordXFloat + `+d+`));
          int coordY = int(round(coordYFloat + `+p+`));
          `+f+`
          if(coordX >= 0 && coordX < `+s+" && coordY >= 0 && coordY < "+a+`) {
            outputValue = getImage(coords[0], coordY, coordX, coords[3]);
          }
          setOutput(outputValue);
        }
    `}return n}();var J6={kernelName:N.RotateWithOffset,backendName:"webgl",kernelFunc:function(n){var t=n.inputs,e=n.attrs,i=n.backend,r=t.image,a=e,s=a.radians,o=a.fillValue,l=a.center,u=i,c=new X6(r.shape,s,o,l),h=u.runWebGLProgram(c,[r],r.dtype);return h}};var Z6=JS+`
  return sin(x);
`,Q6=jo(Z6),e8={kernelName:N.Sin,backendName:"webgl",kernelFunc:Q6};var t8="return x * x;",n8=jo(t8),i8={kernelName:N.Square,backendName:"webgl",kernelFunc:n8};var QS="return (a - b) * (a - b);",r8=Xd(QS,QS),a8={kernelName:N.SquaredDifference,backendName:"webgl",kernelFunc:r8};var s8="return tan(x);",o8=jo(s8),l8={kernelName:N.Tan,backendName:"webgl",kernelFunc:o8};var u8={kernelName:N.Transpose,backendName:"webgl",kernelFunc:function(n){for(var t=n.inputs,e=n.attrs,i=n.backend,r=t.x,a=e.perm,s=i,o=r.shape.length,l=new Array(o),u=0;u<l.length;u++)l[u]=r.shape[a[u]];var c;if(s.shouldExecuteOnCPU([r])){var h=s.texData.get(r.dataId),d=h.values,p=G0(d,r.shape,r.dtype,a,l);c=s.makeTensorInfo(l,r.dtype);var f=s.texData.get(c.dataId);f.values=p}else c=ZS(r,a,s);return c}};function c8(n){var t=n.inputs,e=n.attrs,i=n.backend,r=e.axis,a=t.x;na(a,"unique"),console.warn("WARNING: ","UI might be locked temporarily as data is being downloaded");var s=i.readSync(a.dataId),o=z_(s,r,a.shape,a.dtype),l=o.outputValues,u=o.outputShape,c=o.indices;return[i.makeTensorInfo(u,a.dtype,l),i.makeTensorInfo([c.length],"int32",c)]}var h8={kernelName:N.Unique,backendName:"webgl",kernelFunc:c8};var d8=[o6,c6,d6,g6,b6,I6,T6,R6,l6,z6,_6,H6,q6,G6,K6,$6,k6,J6,e8,i8,a8,l8,u8,h8];for(var Qd=0,eL=d8;Qd<eL.length;Qd++){var p8=eL[Qd];N.registerKernel(p8)}_n.GPGPUContext=xS;_n.MathBackendWebGL=$S;_n.forceHalfFloat=XS;_n.gpgpu_util=x5;_n.setWebGLContext=w0;_n.version_webgl=e6;_n.webgl=t6;_n.webgl_util=h_});var Ut=be(gr=>{"use strict";Object.defineProperty(gr,"__esModule",{value:!0});var ep=Zi(),tp=Xb(),np=hw(),nL=Dw(),f8=b0(),m8=tL();var g8="2.6.0";var v8={"tfjs-core":ep.version_core,"tfjs-backend-cpu":f8.version_cpu,"tfjs-backend-webgl":m8.version_webgl,"tfjs-data":nL.version_data,"tfjs-layers":tp.version_layers,"tfjs-converter":np.version_converter,tfjs:g8};Object.keys(ep).forEach(function(n){n!=="default"&&Object.defineProperty(gr,n,{enumerable:!0,get:function(){return ep[n]}})});Object.keys(tp).forEach(function(n){n!=="default"&&Object.defineProperty(gr,n,{enumerable:!0,get:function(){return tp[n]}})});Object.keys(np).forEach(function(n){n!=="default"&&Object.defineProperty(gr,n,{enumerable:!0,get:function(){return np[n]}})});gr.data=nL;gr.version=v8});var oL=be($o=>{const Be=Ut(),iL=6;function y8(n){const t={strides:[n/16,n/8],anchors:[2,6]},e=[];for(let i=0;i<t.strides.length;i++){const r=t.strides[i],a=Math.floor((n+r-1)/r),s=Math.floor((n+r-1)/r),o=t.anchors[i];for(let l=0;l<a;l++){const u=r*(l+.5);for(let c=0;c<s;c++){const h=r*(c+.5);for(let d=0;d<o;d++)e.push([h,u])}}}return e}const rL=n=>{n.startEndTensor.dispose(),n.startPoint.dispose(),n.endPoint.dispose()},aL=n=>({startEndTensor:n,startPoint:Be.slice(n,[0,0],[-1,2]),endPoint:Be.slice(n,[0,2],[-1,2])}),b8=(n,t)=>{const e=Be.mul(n.startPoint,t),i=Be.mul(n.endPoint,t),r=Be.concat2d([e,i],1);return aL(r)};function w8(n,t,e){const i=Be.slice(n,[0,1],[-1,2]),r=Be.add(i,t),a=Be.slice(n,[0,3],[-1,2]),s=Be.div(a,e),o=Be.div(r,e),l=Be.div(s,2),u=Be.sub(o,l),c=Be.add(o,l),h=Be.mul(u,e),d=Be.mul(c,e),p=1;return Be.concat2d([h,d],p)}function S8(n,t){return Be.tidy(()=>{const e=n.box?n.box:n;return b8(e,t).startEndTensor.squeeze()})}class sL{constructor(n,t){this.blazeFaceModel=n,this.width=t.detector.inputSize,this.height=t.detector.inputSize,this.maxFaces=t.detector.maxFaces,this.anchorsData=y8(t.detector.inputSize),this.anchors=Be.tensor2d(this.anchorsData),this.inputSize=Be.tensor1d([this.width,this.height]),this.iouThreshold=t.detector.iouThreshold,this.scaleFaces=.8,this.scoreThreshold=t.detector.scoreThreshold}async getBoundingBoxes(n){if(!n||n.isDisposedInternal||n.shape.length!==4||n.shape[1]<1||n.shape[2]<1)return null;const[t,e,i]=Be.tidy(()=>{const u=n.resizeBilinear([this.width,this.height]),c=Be.mul(Be.sub(u.div(255),.5),2),h=this.blazeFaceModel.predict(c);let d;if(Array.isArray(h)){const g=h.sort((S,L)=>S.size-L.size),v=Be.concat([g[0],g[2]],2),b=Be.concat([g[1],g[3]],2),w=Be.concat([b,v],1);d=w.squeeze(0)}else d=h.squeeze();const p=w8(d,this.anchors,this.inputSize),f=Be.slice(d,[0,0],[-1,1]),m=Be.sigmoid(f).squeeze();return[d,p,m]}),r=await Be.image.nonMaxSuppressionAsync(e,i,this.maxFaces,this.iouThreshold,this.scoreThreshold),a=await r.array();r.dispose();const s=a.map(u=>Be.slice(e,[u,0],[1,-1])),o=await Promise.all(s.map(async u=>{const c=await u.array();return u.dispose(),c})),l=[];for(let u=0;u<o.length;u++){const c=o[u],h=aL(c),d=a[u],p=this.anchorsData[d],f=Be.slice(t,[d,iL-1],[1,-1]),m=f.squeeze(),g=m.reshape([iL,-1]),v=Be.slice(i,[d],[1]),b={box:h,landmarks:g,probability:v,anchor:p};l.push(b),f.dispose(),m.dispose()}return t.dispose(),e.dispose(),i.dispose(),t.dispose(),{boxes:l,scaleFactor:[n.shape[2]/this.width,n.shape[1]/this.height]}}async estimateFaces(n){const t=n instanceof Be.Tensor?n:Be.browser.fromPixels(n),e=t.toFloat(),i=e.expandDims(0);t.dispose(),e.dispose();const{boxes:r,scaleFactor:a}=await this.getBoundingBoxes(i);return i.dispose(),Promise.all(r.map(async s=>{const o=S8(s,a),[l,u,c]=await Promise.all([s.landmarks,o,s.probability].map(async g=>g.array())),h=s.anchor,[d,p]=a,f=l.map(g=>[(g[0]+h[0])*d,(g[1]+h[1])*p]),m={topLeft:u.slice(0,2),bottomRight:u.slice(2),landmarks:f,probability:c};return rL(s.box),s.landmarks.dispose(),s.probability.dispose(),o.dispose(),m}))}}async function L8(n){const t=await Be.loadGraphModel(n.detector.modelPath,{fromTFHub:n.detector.modelPath.includes("tfhub.dev")}),e=new sL(t,n);return e}$o.load=L8;$o.BlazeFaceModel=sL;$o.disposeBox=rL});var rp=be(ip=>{ip.MESH_ANNOTATIONS={silhouette:[10,338,297,332,284,251,389,356,454,323,361,288,397,365,379,378,400,377,152,148,176,149,150,136,172,58,132,93,234,127,162,21,54,103,67,109],lipsUpperOuter:[61,185,40,39,37,0,267,269,270,409,291],lipsLowerOuter:[146,91,181,84,17,314,405,321,375,291],lipsUpperInner:[78,191,80,81,82,13,312,311,310,415,308],lipsLowerInner:[78,95,88,178,87,14,317,402,318,324,308],rightEyeUpper0:[246,161,160,159,158,157,173],rightEyeLower0:[33,7,163,144,145,153,154,155,133],rightEyeUpper1:[247,30,29,27,28,56,190],rightEyeLower1:[130,25,110,24,23,22,26,112,243],rightEyeUpper2:[113,225,224,223,222,221,189],rightEyeLower2:[226,31,228,229,230,231,232,233,244],rightEyeLower3:[143,111,117,118,119,120,121,128,245],rightEyebrowUpper:[156,70,63,105,66,107,55,193],rightEyebrowLower:[35,124,46,53,52,65],rightEyeIris:[473,474,475,476,477],leftEyeUpper0:[466,388,387,386,385,384,398],leftEyeLower0:[263,249,390,373,374,380,381,382,362],leftEyeUpper1:[467,260,259,257,258,286,414],leftEyeLower1:[359,255,339,254,253,252,256,341,463],leftEyeUpper2:[342,445,444,443,442,441,413],leftEyeLower2:[446,261,448,449,450,451,452,453,464],leftEyeLower3:[372,340,346,347,348,349,350,357,465],leftEyebrowUpper:[383,300,293,334,296,336,285,417],leftEyebrowLower:[265,353,276,283,282,295],leftEyeIris:[468,469,470,471,472],midwayBetweenEyes:[168],noseTip:[1],noseBottom:[2],noseRightCorner:[98],noseLeftCorner:[327],rightCheek:[205],leftCheek:[425]};ip.MESH_TO_IRIS_INDICES_MAP=[{key:"EyeUpper0",indices:[9,10,11,12,13,14,15]},{key:"EyeUpper1",indices:[25,26,27,28,29,30,31]},{key:"EyeUpper2",indices:[41,42,43,44,45,46,47]},{key:"EyeLower0",indices:[0,1,2,3,4,5,6,7,8]},{key:"EyeLower1",indices:[16,17,18,19,20,21,22,23,24]},{key:"EyeLower2",indices:[32,33,34,35,36,37,38,39,40]},{key:"EyeLower3",indices:[54,55,56,57,58,59,60,61,62]},{key:"EyebrowUpper",indices:[63,64,65,66,67,68,69,70]},{key:"EyebrowLower",indices:[48,49,50,51,52,53]}]});var lL=be(vr=>{const I8=Ut();function A8(n,t){const e=[n.startPoint[0]*t[0],n.startPoint[1]*t[1]],i=[n.endPoint[0]*t[0],n.endPoint[1]*t[1]];return{startPoint:e,endPoint:i}}vr.scaleBoxCoordinates=A8;function ap(n){return[Math.abs(n.endPoint[0]-n.startPoint[0]),Math.abs(n.endPoint[1]-n.startPoint[1])]}vr.getBoxSize=ap;function sp(n){return[n.startPoint[0]+(n.endPoint[0]-n.startPoint[0])/2,n.startPoint[1]+(n.endPoint[1]-n.startPoint[1])/2]}vr.getBoxCenter=sp;function T8(n,t,e){const i=t.shape[1],r=t.shape[2],a=[[n.startPoint[1]/i,n.startPoint[0]/r,n.endPoint[1]/i,n.endPoint[0]/r]];return I8.image.cropAndResize(t,a,[0],e)}vr.cutBoxFromImageAndResize=T8;function N8(n,t=1.5){const e=sp(n),i=ap(n),r=[t*i[0]/2,t*i[1]/2],a=[e[0]-r[0],e[1]-r[1]],s=[e[0]+r[0],e[1]+r[1]];return{startPoint:a,endPoint:s,landmarks:n.landmarks}}vr.enlargeBox=N8;function x8(n){const t=sp(n),e=ap(n),i=Math.max(...e),r=i/2,a=[t[0]-r,t[1]-r],s=[t[0]+r,t[1]+r];return{startPoint:a,endPoint:s,landmarks:n.landmarks}}vr.squarifyBox=x8});var pL=be(Tn=>{Tn.IDENTITY_MATRIX=[[1,0,0],[0,1,0],[0,0,1]];function uL(n){return n-2*Math.PI*Math.floor((n+Math.PI)/(2*Math.PI))}Tn.normalizeRadians=uL;function C8(n,t){const e=Math.PI/2-Math.atan2(-(t[1]-n[1]),t[0]-n[0]);return uL(e)}Tn.computeRotation=C8;function R8(n){return n*180/Math.PI}Tn.radToDegrees=R8;function cL(n,t){return[[1,0,n],[0,1,t],[0,0,1]]}function ua(n,t){let e=0;for(let i=0;i<n.length;i++)e+=n[i]*t[i];return e}Tn.dot=ua;function hL(n,t){const e=[];for(let i=0;i<n.length;i++)e.push(n[i][t]);return e}Tn.getColumnFrom2DArr=hL;function dL(n,t){const e=[],i=n.length;for(let r=0;r<i;r++){e.push([]);for(let a=0;a<i;a++)e[r].push(ua(n[r],hL(t,a)))}return e}function O8(n,t){const e=Math.cos(n),i=Math.sin(n),r=[[e,-i,0],[i,e,0],[0,0,1]],a=cL(t[0],t[1]),s=dL(a,r),o=cL(-t[0],-t[1]);return dL(s,o)}Tn.buildRotationMatrix=O8;function E8(n){const t=[[n[0][0],n[1][0]],[n[0][1],n[1][1]]],e=[n[0][2],n[1][2]],i=[-ua(t[0],e),-ua(t[1],e)];return[t[0].concat(i[0]),t[1].concat(i[1]),[0,0,1]]}Tn.invertTransformMatrix=E8;function D8(n,t){return[ua(n,t[0]),ua(n,t[1])]}Tn.rotatePoint=D8;function k8(n,t){return Math.sqrt((n[0]-t[0])**2+(n[1]-t[1])**2)}Tn.xyDistanceBetweenPoints=k8});var mL=be(fL=>{const ni=Ut(),Hn=lL(),xi=rp(),Ci=pL(),F8=468,W8=.25,U8=13,B8=[U8,xi.MESH_ANNOTATIONS.midwayBetweenEyes[0]],z8=3,P8=2,_8=[z8,P8],op=xi.MESH_ANNOTATIONS.leftEyeLower0,lp=[op[0],op[op.length-1]],up=xi.MESH_ANNOTATIONS.rightEyeLower0,cp=[up[0],up[up.length-1]],M8=3,H8=4,V8=71,hp=76;function Xo(n,t,e,i){for(let r=0;r<xi.MESH_TO_IRIS_INDICES_MAP.length;r++){const{key:a,indices:s}=xi.MESH_TO_IRIS_INDICES_MAP[r],o=xi.MESH_ANNOTATIONS[`${e}${a}`],l=i==null;if(l||i.includes(a))for(let u=0;u<s.length;u++){const c=s[u];n[o[u]]=[t[c][0],t[c][1],(t[c][2]+n[o[u]][2])/2]}}}class q8{constructor(n,t,e,i){this.regionsOfInterest=[],this.runsWithoutFaceDetector=0,this.boundingBoxDetector=n,this.meshDetector=t,this.irisModel=e,this.meshWidth=i.mesh.inputSize,this.meshHeight=i.mesh.inputSize,this.irisSize=i.iris.inputSize,this.irisEnlarge=i.iris.enlargeFactor}transformRawCoords(n,t,e,i){const r=Hn.getBoxSize({startPoint:t.startPoint,endPoint:t.endPoint}),a=[r[0]/this.meshWidth,r[1]/this.meshHeight],s=n.map(d=>[a[0]*(d[0]-this.meshWidth/2),a[1]*(d[1]-this.meshHeight/2),d[2]]),o=Ci.buildRotationMatrix(e,[0,0]),l=s.map(d=>[...Ci.rotatePoint(d,o),d[2]]),u=Ci.invertTransformMatrix(i),c=[...Hn.getBoxCenter({startPoint:t.startPoint,endPoint:t.endPoint}),1],h=[Ci.dot(c,u[0]),Ci.dot(c,u[1])];return l.map(d=>[d[0]+h[0],d[1]+h[1],d[2]])}getLeftToRightEyeDepthDifference(n){const t=n[lp[0]][2],e=n[cp[0]][2];return t-e}getEyeBox(n,t,e,i,r=!1){const a=Hn.squarifyBox(Hn.enlargeBox(this.calculateLandmarksBoundingBox([n[e],n[i]]),this.irisEnlarge)),s=Hn.getBoxSize(a);let o=ni.image.cropAndResize(t,[[a.startPoint[1]/this.meshHeight,a.startPoint[0]/this.meshWidth,a.endPoint[1]/this.meshHeight,a.endPoint[0]/this.meshWidth]],[0],[this.irisSize,this.irisSize]);return r&&(o=ni.image.flipLeftRight(o)),{box:a,boxSize:s,crop:o}}getEyeCoords(n,t,e,i=!1){const r=[];for(let a=0;a<hp;a++){const s=n[a*3],o=n[a*3+1],l=n[a*3+2];r.push([(i?1-s/this.irisSize:s/this.irisSize)*e[0]+t.startPoint[0],o/this.irisSize*e[1]+t.startPoint[1],l])}return{rawCoords:r,iris:r.slice(V8)}}getAdjustedIrisCoords(n,t,e){const i=n[xi.MESH_ANNOTATIONS[`${e}EyeUpper0`][M8]][2],r=n[xi.MESH_ANNOTATIONS[`${e}EyeLower0`][H8]][2],a=(i+r)/2;return t.map((s,o)=>{let l=a;return o===2?l=i:o===4&&(l=r),[s[0],s[1],l]})}async predict(n,t){if(this.skipFrames=t.detector.skipFrames,this.maxFaces=t.detector.maxFaces,this.shouldUpdateRegionsOfInterest()){const i=await this.boundingBoxDetector.getBoundingBoxes(n);if(i.boxes.length===0)return this.regionsOfInterest=[],null;const r=i.boxes.map(a=>{const s=a.box.startPoint.squeeze(),o=a.box.endPoint.squeeze(),l={startPoint:s.arraySync(),endPoint:o.arraySync()};s.dispose(),o.dispose();const u=Hn.scaleBoxCoordinates(l,i.scaleFactor),c=Hn.enlargeBox(u),h=a.landmarks.arraySync();return a.box.startPoint.dispose(),a.box.endPoint.dispose(),a.landmarks.dispose(),a.probability.dispose(),{...c,landmarks:h}});this.updateRegionsOfInterest(r),this.runsWithoutFaceDetector=0}else this.runsWithoutFaceDetector++;const e=ni.tidy(()=>this.regionsOfInterest.map((i,r)=>{let a=0;const s=i.landmarks.length>=F8;let[o,l]=B8;s===!1&&([o,l]=_8),a=Ci.computeRotation(i.landmarks[o],i.landmarks[l]);const u=Hn.getBoxCenter({startPoint:i.startPoint,endPoint:i.endPoint}),c=[u[0]/n.shape[2],u[1]/n.shape[1]];let h=n,d=Ci.IDENTITY_MATRIX;a!==0&&(h=ni.image.rotateWithOffset(n,a,0,c),d=Ci.buildRotationMatrix(-a,u));const p={startPoint:i.startPoint,endPoint:i.endPoint},f=Hn.cutBoxFromImageAndResize(p,h,[this.meshHeight,this.meshWidth]).div(255),[,m,g]=this.meshDetector.predict(f),v=ni.reshape(g,[-1,3]);let b=v.arraySync();if(t.iris.enabled){const{box:C,boxSize:R,crop:D}=this.getEyeBox(b,f,lp[0],lp[1],!0),{box:k,boxSize:W,crop:F}=this.getEyeBox(b,f,cp[0],cp[1]),P=this.irisModel.predict(ni.concat([D,F])),H=P.dataSync();P.dispose();const _=H.slice(0,hp*3),{rawCoords:K,iris:j}=this.getEyeCoords(_,C,R,!0),q=H.slice(hp*3),{rawCoords:G,iris:Z}=this.getEyeCoords(q,k,W),X=this.getLeftToRightEyeDepthDifference(b);Math.abs(X)<30?(Xo(b,K,"left"),Xo(b,G,"right")):X<1?Xo(b,K,"left",["EyeUpper0","EyeLower0"]):Xo(b,G,"right",["EyeUpper0","EyeLower0"]);const ee=this.getAdjustedIrisCoords(b,j,"left"),ne=this.getAdjustedIrisCoords(b,Z,"right");b=b.concat(ee).concat(ne)}const w=this.transformRawCoords(b,i,a,d);ni.dispose(b);const S=Hn.enlargeBox(this.calculateLandmarksBoundingBox(w)),L=m.squeeze();if(ni.dispose(m),t.mesh.enabled){const C=ni.tensor2d(w);this.regionsOfInterest[r]={...S,landmarks:C.arraySync()};const R={coords:C,box:S,confidence:L,image:f};return R}const x={coords:null,box:S,confidence:L,image:f};return x}));return e}updateRegionsOfInterest(n){for(let t=0;t<n.length;t++){const e=n[t],i=this.regionsOfInterest[t];let r=0;if(i&&i.startPoint){const[a,s]=e.startPoint,[o,l]=e.endPoint,[u,c]=i.startPoint,[h,d]=i.endPoint,p=Math.max(a,u),f=Math.max(s,c),m=Math.min(o,h),g=Math.min(l,d),v=(m-p)*(g-f),b=(o-a)*(l-s),w=(h-u)*(d-s);r=v/(b+w-v)}r<W8&&(this.regionsOfInterest[t]=e)}this.regionsOfInterest=this.regionsOfInterest.slice(0,n.length)}clearRegionOfInterest(n){this.regionsOfInterest[n]!=null&&(this.regionsOfInterest=[...this.regionsOfInterest.slice(0,n),...this.regionsOfInterest.slice(n+1)])}shouldUpdateRegionsOfInterest(){const n=this.regionsOfInterest.length,t=n===0;return 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SL=be(us=>{const ca=Ut(),K8=oL(),bL=rp(),j8=mL(),$8=vL(),X8=yL().default;class wL{constructor(n,t,e,i){this.pipeline=new j8.Pipeline(n,t,e,i),i&&(this.config=i)}async estimateFaces(n,t){t&&(this.config=t);const e=n instanceof ca.Tensor?n:ca.browser.fromPixels(n),i=e.toFloat(),r=i.expandDims(0);e.dispose(),i.dispose();const a=await this.pipeline.predict(r,t);ca.dispose(r);const s=[];for(const o of a||[]){if(o.isDisposedInternal)continue;const l=o.confidence.arraySync();if(l>=this.config.detector.minConfidence){const u=o.coords?o.coords.arraySync():null,c={};if(u&&u.length>0)for(const h in bL.MESH_ANNOTATIONS)(this.config.iris.enabled||h.includes("Iris")===!1)&&(c[h]=bL.MESH_ANNOTATIONS[h].map(d=>u[d]));s.push({confidence:l||0,box:o.box?[o.box.startPoint[0],o.box.startPoint[1],o.box.endPoint[0]-o.box.startPoint[0],o.box.endPoint[1]-o.box.startPoint[1]]:0,mesh:u,annotations:c,image:o.image?ca.clone(o.image):null})}o.confidence&&o.confidence.dispose(),o.coords&&o.coords.dispose(),o.image&&o.image.dispose()}return s}}async function J8(n){const t=await Promise.all([K8.load(n),ca.loadGraphModel(n.mesh.modelPath,{fromTFHub:n.mesh.modelPath.includes("tfhub.dev")}),ca.loadGraphModel(n.iris.modelPath,{fromTFHub:n.iris.modelPath.includes("tfhub.dev")})]),e=new wL(t[0],t[1],t[2],n);return e}us.load=J8;us.MediaPipeFaceMesh=wL;us.uv_coords=$8;us.triangulation=X8});var IL=be(Jo=>{const sn=Ut(),Ri={};let LL={age:0,gender:""},Zo=0;async function Z8(n,t){const e=sn.browser.fromPixels(n),i=sn.image.resizeBilinear(e,[t,t]),r=sn.cast(sn.expandDims(i,0),"float32");return r}async function Q8(n){return Ri.age||(Ri.age=await sn.loadGraphModel(n.face.age.modelPath)),Ri.age}async function e7(n){return Ri.gender||(Ri.gender=await sn.loadGraphModel(n.face.gender.modelPath)),Ri.gender}async function t7(n,t){if(Zo>t.face.age.skipFrames?Zo=0:Zo+=1,Zo===0)return LL;let e;if(n instanceof sn.Tensor){const o=sn.image.resizeBilinear(n,[t.face.age.inputSize,t.face.age.inputSize],!1);e=sn.mul(o,[255]),sn.dispose(o)}else e=await Z8(n,t.face.age.inputSize);const i=[];let r,a;t.face.age.enabled&&i.push(r=Ri.age.predict(e)),t.face.gender.enabled&&i.push(a=Ri.gender.predict(e)),await Promise.all(i);const s={};if(r){const o=await r.data();s.age=Math.trunc(10*o[0])/10,sn.dispose(r)}if(a){const o=await a.data(),l=Math.trunc(Math.abs(1.9*100*(o[0]-.5)))/100;l>t.face.gender.minConfidence&&(s.gender=o[0]<=.5?"female":"male",s.confidence=l),sn.dispose(a)}return sn.dispose(e),LL=s,s}Jo.predict=t7;Jo.loadAge=Q8;Jo.loadGender=e7});var NL=be(dp=>{const Bt=Ut(),n7=["angry","discust","fear","happy","sad","surpise","neutral"],Qo={};let AL=[],pp=0;const TL=1.5;function i7(n,t){const e=Bt.tidy(()=>{const i=Bt.browser.fromPixels(n,1),r=Bt.image.resizeBilinear(i,[t,t]),a=Bt.cast(Bt.expandDims(r,0),"float32");return a});return e}async function r7(n){return Qo.emotion||(Qo.emotion=await Bt.loadGraphModel(n.face.emotion.modelPath)),Qo.emotion}async function a7(n,t){if(pp+=1,pp>=t.face.emotion.skipFrames)return pp=0,AL;const e=Bt.tidy(()=>{if(n instanceof Bt.Tensor){const r=Bt.image.resizeBilinear(n,[t.face.emotion.inputSize,t.face.emotion.inputSize],!1),[a,s,o]=Bt.split(r,3,3);if(t.face.emotion.useGrayscale){const l=Bt.mul(a,[.2989]),u=Bt.mul(s,[.587]),c=Bt.mul(o,[.114]),h=Bt.addN([l,u,c]);return h}return s}return i7(n,t.face.emotion.inputSize)}),i=[];if(t.face.emotion.enabled){const r=await Qo.emotion.predict(e),a=await r.data();for(let s=0;s<a.length;s++)TL*a[s]>t.face.emotion.minConfidence&&i.push({score:Math.min(.99,Math.trunc(100*TL*a[s])/100),emotion:n7[s]});i.sort((s,o)=>o.score-s.score),Bt.dispose(r)}return Bt.dispose(e),AL=i,i}dp.predict=a7;dp.load=r7});var RL=be(xL=>{const CL=Ut();class s7{constructor(n,t){this.model=n,this.outputStride=t;const e=this.model.inputs[0].shape;CL.util.assert(e[1]===-1&&e[2]===-1,()=>`Input shape [${e[1]}, ${e[2]}] must both be equal to or -1`)}predict(n){return CL.tidy(()=>{const t=this.preprocessInput(n.toFloat()),e=t.expandDims(0),i=this.model.predict(e),r=i.map(s=>s.squeeze([0])),a=this.nameOutputResults(r);return{heatmapScores:a.heatmap.sigmoid(),offsets:a.offsets,displacementFwd:a.displacementFwd,displacementBwd:a.displacementBwd}})}dispose(){this.model.dispose()}}xL.BaseModel=s7});var fp=be(OL=>{const EL=Ut(),o7=RL();class l7 extends o7.BaseModel{preprocessInput(n){return EL.tidy(()=>EL.div(n,127.5).sub(1))}nameOutputResults(n){const[t,e,i,r]=n;return{offsets:t,heatmap:e,displacementFwd:i,displacementBwd:r}}}OL.MobileNet=l7});var kL=be(DL=>{function mp(n){return Math.floor(n/2)}class u7{constructor(n,t){this.priorityQueue=new Array(n),this.numberOfElements=-1,this.getElementValue=t}enqueue(n){this.priorityQueue[++this.numberOfElements]=n,this.swim(this.numberOfElements)}dequeue(){const n=this.priorityQueue[0];return this.exchange(0,this.numberOfElements--),this.sink(0),this.priorityQueue[this.numberOfElements+1]=null,n}empty(){return this.numberOfElements===-1}size(){return this.numberOfElements+1}all(){return this.priorityQueue.slice(0,this.numberOfElements+1)}max(){return this.priorityQueue[0]}swim(n){for(;n>0&&this.less(mp(n),n);)this.exchange(n,mp(n)),n=mp(n)}sink(n){for(;2*n<=this.numberOfElements;){let t=2*n;if(t<this.numberOfElements&&this.less(t,t+1)&&t++,!this.less(n,t))break;this.exchange(n,t),n=t}}getValueAt(n){return this.getElementValue(this.priorityQueue[n])}less(n,t){return this.getValueAt(n)<this.getValueAt(t)}exchange(n,t){const e=this.priorityQueue[n];this.priorityQueue[n]=this.priorityQueue[t],this.priorityQueue[t]=e}}DL.MaxHeap=u7});var WL=be(FL=>{const c7=kL();function h7(n,t,e,i,r,a){const[s,o]=a.shape;let l=!0;const u=Math.max(e-r,0),c=Math.min(e+r+1,s);for(let h=u;h<c;++h){const d=Math.max(i-r,0),p=Math.min(i+r+1,o);for(let f=d;f<p;++f)if(a.get(h,f,n)>t){l=!1;break}if(!l)break}return l}function d7(n,t,e){const[i,r,a]=e.shape,s=new c7.MaxHeap(i*r*a,({score:o})=>o);for(let o=0;o<i;++o)for(let l=0;l<r;++l)for(let u=0;u<a;++u){const c=e.get(o,l,u);if(c<n)continue;h7(u,c,o,l,t,e)&&s.enqueue({score:c,part:{heatmapY:o,heatmapX:l,id:u}})}return s}FL.buildPartWithScoreQueue=d7});var cs=be(Nn=>{Nn.partNames=["nose","leftEye","rightEye","leftEar","rightEar","leftShoulder","rightShoulder","leftElbow","rightElbow","leftWrist","rightWrist","leftHip","rightHip","leftKnee","rightKnee","leftAnkle","rightAnkle"];Nn.NUM_KEYPOINTS=Nn.partNames.length;Nn.partIds=Nn.partNames.reduce((n,t,e)=>(n[t]=e,n),{});const p7=[["leftHip","leftShoulder"],["leftElbow","leftShoulder"],["leftElbow","leftWrist"],["leftHip","leftKnee"],["leftKnee","leftAnkle"],["rightHip","rightShoulder"],["rightElbow","rightShoulder"],["rightElbow","rightWrist"],["rightHip","rightKnee"],["rightKnee","rightAnkle"],["leftShoulder","rightShoulder"],["leftHip","rightHip"]];Nn.poseChain=[["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"]];Nn.connectedPartIndices=p7.map(([n,t])=>[Nn.partIds[n],Nn.partIds[t]]);Nn.partChannels=["left_face","right_face","right_upper_leg_front","right_lower_leg_back","right_upper_leg_back","left_lower_leg_front","left_upper_leg_front","left_upper_leg_back","left_lower_leg_back","right_feet","right_lower_leg_front","left_feet","torso_front","torso_back","right_upper_arm_front","right_upper_arm_back","right_lower_arm_back","left_lower_arm_front","left_upper_arm_front","left_upper_arm_back","left_lower_arm_back","right_hand","right_lower_arm_front","left_hand"]});var vp=be(Oi=>{const f7=cs();function UL(n,t,e,i){return{y:i.get(n,t,e),x:i.get(n,t,e+f7.NUM_KEYPOINTS)}}Oi.getOffsetPoint=UL;function m7(n,t,e){const{heatmapY:i,heatmapX:r,id:a}=n,{y:s,x:o}=UL(i,r,a,e);return{x:n.heatmapX*t+o,y:n.heatmapY*t+s}}Oi.getImageCoords=m7;function g7(n,t){const e=new Array(t);for(let i=0;i<t;i++)e[i]=n;return e}Oi.fillArray=g7;function gp(n,t,e){return n<t?t:n>e?e:n}Oi.clamp=gp;function v7(n,t,e,i){const r=e-n,a=i-t;return r*r+a*a}Oi.squaredDistance=v7;function y7(n,t){return{x:n.x+t.x,y:n.y+t.y}}Oi.addVectors=y7;function b7(n,t,e){return{y:gp(n.y,t,e),x:gp(n.x,t,e)}}Oi.clampVector=b7});var ML=be(BL=>{const hs=cs(),ha=vp(),zL=hs.poseChain.map(([n,t])=>[hs.partIds[n],hs.partIds[t]]),yp=zL.map(([,n])=>n),PL=zL.map(([n])=>n);function w7(n,t,e){const i=e.shape[2]/2;return{y:e.get(t.y,t.x,n),x:e.get(t.y,t.x,i+n)}}function bp(n,t,e,i){return{y:ha.clamp(Math.round(n.y/t),0,e-1),x:ha.clamp(Math.round(n.x/t),0,i-1)}}function _L(n,t,e,i,r,a,s,o=2){const[l,u]=i.shape,c=bp(t.position,a,l,u),h=w7(n,c,s),d=ha.addVectors(t.position,h);let p=d;for(let g=0;g<o;g++){const v=bp(p,a,l,u),b=ha.getOffsetPoint(v.y,v.x,e,r);p=ha.addVectors({x:v.x*a,y:v.y*a},{x:b.x,y:b.y})}const f=bp(p,a,l,u),m=i.get(f.y,f.x,e);return{position:p,part:hs.partNames[e],score:m}}function S7(n,t,e,i,r,a){const s=t.shape[2],o=yp.length,l=new Array(s),{part:u,score:c}=n,h=ha.getImageCoords(u,i,e);l[u.id]={score:c,part:hs.partNames[u.id],position:h};for(let d=o-1;d>=0;--d){const p=yp[d],f=PL[d];l[p]&&!l[f]&&(l[f]=_L(d,l[p],f,t,e,i,a))}for(let d=0;d<o;++d){const p=PL[d],f=yp[d];l[p]&&!l[f]&&(l[f]=_L(d,l[p],f,t,e,i,r))}return l}BL.decodePose=S7});var wp=be(HL=>{const L7=WL(),I7=ML(),VL=vp();function qL(n,t,{x:e,y:i},r){return n.some(({keypoints:a})=>{const s=a[r].position;return VL.squaredDistance(i,e,s.y,s.x)<=t})}function A7(n,t,e){const i=e.reduce((r,{position:a,score:s},o)=>(qL(n,t,a,o)||(r+=s),r),0);return i/e.length}const T7=1;function N7(n,t,e,i,r,a,s=.5,o=20){const l=[],u=L7.buildPartWithScoreQueue(s,T7,n),c=o*o;for(;l.length<a&&!u.empty();){const h=u.dequeue(),d=VL.getImageCoords(h.part,r,t);if(qL(l,c,d,h.part.id))continue;const p=I7.decodePose(h,n,t,r,e,i),f=A7(l,c,p);l.push({keypoints:p,score:f})}return l}HL.decodeMultiplePoses=N7});var Lp=be(dn=>{const da=Ut(),x7=cs();function C7(n,t,e){return n<e||t<e}function R7(n,t){return x7.connectedPartIndices.reduce((e,[i,r])=>(C7(n[i].score,n[r].score,t)||e.push([n[i],n[r]]),e),[])}dn.getAdjacentKeyPoints=R7;const{NEGATIVE_INFINITY:GL,POSITIVE_INFINITY:YL}=Number;function KL(n){return n.reduce(({maxX:t,maxY:e,minX:i,minY:r},{position:{x:a,y:s}})=>({maxX:Math.max(t,a),maxY:Math.max(e,s),minX:Math.min(i,a),minY:Math.min(r,s)}),{maxX:GL,maxY:GL,minX:YL,minY:YL})}dn.getBoundingBox=KL;function O7(n){const{minX:t,minY:e,maxX:i,maxY:r}=KL(n);return[{x:t,y:e},{x:i,y:e},{x:i,y:r},{x:t,y:r}]}dn.getBoundingBoxPoints=O7;async function E7(n){return Promise.all(n.map(t=>t.buffer()))}dn.toTensorBuffers3D=E7;function jL(n,t,e,i=0,r=0){return{score:n.score,keypoints:n.keypoints.map(({score:a,part:s,position:o})=>({score:a,part:s,position:{x:o.x*e+r,y:o.y*t+i}}))}}dn.scalePose=jL;function $L(n,t,e,i=0,r=0){return e===1&&t===1&&i===0&&r===0?n:n.map(a=>jL(a,t,e,i,r))}dn.scalePoses=$L;function XL(n){return n instanceof da.Tensor?[n.shape[0],n.shape[1]]:[n.height,n.width]}dn.getInputTensorDimensions=XL;function Sp(n){return n instanceof da.Tensor?n:da.browser.fromPixels(n)}dn.toInputTensor=Sp;function D7(n,t,e){return da.tidy(()=>{const i=Sp(n);return i.resizeBilinear([t,e])})}dn.toResizedInputTensor=D7;function k7(n,[t,e]){const[i,r]=XL(n),a=e/t,s=r/i;let[o,l,u,c]=[0,0,0,0];s<a?(o=0,l=0,u=Math.round(.5*(a*i-r)),c=Math.round(.5*(a*i-r))):(o=Math.round(.5*(1/a*r-i)),l=Math.round(.5*(1/a*r-i)),u=0,c=0);const h=da.tidy(()=>{let d=Sp(n);return d=da.pad3d(d,[[o,l],[u,c],[0,0]]),d.resizeBilinear([t,e])});return{resized:h,padding:{top:o,left:u,right:c,bottom:l}}}dn.padAndResizeTo=k7;function F7(n,[t,e],[i,r],a){const s=(t+a.top+a.bottom)/i,o=(e+a.left+a.right)/r,l=$L(n,s,o,-a.top,-a.left);return l}dn.scaleAndFlipPoses=F7});var ZL=be(Ip=>{const W7=Ut(),U7=fp(),B7=wp(),el=Lp();class JL{constructor(n){this.baseModel=n}async estimatePoses(n,t){const e=t.outputStride,[i,r]=el.getInputTensorDimensions(n),{resized:a,padding:s}=el.padAndResizeTo(n,[t.inputResolution,t.inputResolution]),{heatmapScores:o,offsets:l,displacementFwd:u,displacementBwd:c}=this.baseModel.predict(a),h=await el.toTensorBuffers3D([o,l,u,c]),d=h[0],p=h[1],f=h[2],m=h[3],g=await B7.decodeMultiplePoses(d,p,f,m,e,t.maxDetections,t.scoreThreshold,t.nmsRadius),v=el.scaleAndFlipPoses(g,[i,r],[t.inputResolution,t.inputResolution],s);return o.dispose(),l.dispose(),u.dispose(),c.dispose(),a.dispose(),v}dispose(){this.baseModel.dispose()}}Ip.PoseNet=JL;async function z7(n){const t=await W7.loadGraphModel(n.modelPath),e=new U7.MobileNet(t,n.outputStride);return new JL(e)}async function P7(n){return z7(n)}Ip.load=P7});var eI=be(Zt=>{const _7=fp(),QL=ZL(),M7=wp(),tl=cs(),ds=Lp();Zt.load=QL.load;Zt.PoseNet=QL.PoseNet;Zt.MobileNet=_7.MobileNet;Zt.decodeMultiplePoses=M7.decodeMultiplePoses;Zt.partChannels=tl.partChannels;Zt.partIds=tl.partIds;Zt.partNames=tl.partNames;Zt.poseChain=tl.poseChain;Zt.getAdjacentKeyPoints=ds.getAdjacentKeyPoints;Zt.getBoundingBox=ds.getBoundingBox;Zt.getBoundingBoxPoints=ds.getBoundingBoxPoints;Zt.scaleAndFlipPoses=ds.scaleAndFlipPoses;Zt.scalePose=ds.scalePose});var Np=be(Ei=>{const H7=Ut();function Ap(n){return[Math.abs(n.endPoint[0]-n.startPoint[0]),Math.abs(n.endPoint[1]-n.startPoint[1])]}Ei.getBoxSize=Ap;function Tp(n){return[n.startPoint[0]+(n.endPoint[0]-n.startPoint[0])/2,n.startPoint[1]+(n.endPoint[1]-n.startPoint[1])/2]}Ei.getBoxCenter=Tp;function V7(n,t,e){const i=t.shape[1],r=t.shape[2],a=[[n.startPoint[1]/i,n.startPoint[0]/r,n.endPoint[1]/i,n.endPoint[0]/r]];return H7.image.cropAndResize(t,a,[0],e)}Ei.cutBoxFromImageAndResize=V7;function q7(n,t){const e=[n.startPoint[0]*t[0],n.startPoint[1]*t[1]],i=[n.endPoint[0]*t[0],n.endPoint[1]*t[1]],r=n.palmLandmarks.map(a=>{const s=[a[0]*t[0],a[1]*t[1]];return s});return{startPoint:e,endPoint:i,palmLandmarks:r}}Ei.scaleBoxCoordinates=q7;function G7(n,t=1.5){const e=Tp(n),i=Ap(n),r=[t*i[0]/2,t*i[1]/2],a=[e[0]-r[0],e[1]-r[1]],s=[e[0]+r[0],e[1]+r[1]];return{startPoint:a,endPoint:s,palmLandmarks:n.palmLandmarks}}Ei.enlargeBox=G7;function Y7(n){const t=Tp(n),e=Ap(n),i=Math.max(...e),r=i/2,a=[t[0]-r,t[1]-r],s=[t[0]+r,t[1]+r];return{startPoint:a,endPoint:s,palmLandmarks:n.palmLandmarks}}Ei.squarifyBox=Y7;function K7(n,t){const e=[n.endPoint[0]-n.startPoint[0],n.endPoint[1]-n.startPoint[1]],i=[e[0]*t[0],e[1]*t[1]],r=[n.startPoint[0]+i[0],n.startPoint[1]+i[1]],a=[n.endPoint[0]+i[0],n.endPoint[1]+i[1]];return{startPoint:r,endPoint:a,palmLandmarks:n.palmLandmarks}}Ei.shiftBox=K7});var nI=be(tI=>{const qe=Ut(),j7=Np();class $7{constructor(n,t,e){this.model=n,this.width=e.inputSize,this.height=e.inputSize,this.anchors=t.map(i=>[i.x_center,i.y_center]),this.anchorsTensor=qe.tensor2d(this.anchors),this.inputSizeTensor=qe.tensor1d([e.inputSize,e.inputSize]),this.doubleInputSizeTensor=qe.tensor1d([e.inputSize*2,e.inputSize*2])}normalizeBoxes(n){return qe.tidy(()=>{const t=qe.slice(n,[0,0],[-1,2]),e=qe.slice(n,[0,2],[-1,2]),i=qe.add(qe.div(t,this.inputSizeTensor),this.anchorsTensor),r=qe.div(e,this.doubleInputSizeTensor),a=qe.mul(qe.sub(i,r),this.inputSizeTensor),s=qe.mul(qe.add(i,r),this.inputSizeTensor);return qe.concat2d([a,s],1)})}normalizeLandmarks(n,t){return qe.tidy(()=>{const e=qe.add(qe.div(n.reshape([-1,7,2]),this.inputSizeTensor),this.anchors[t]);return qe.mul(e,this.inputSizeTensor)})}async getBoundingBoxes(n){const t=qe.tidy(()=>qe.mul(qe.sub(n,.5),2)),e=this.model.predict(t),i=e.squeeze(),r=qe.tidy(()=>qe.sigmoid(qe.slice(i,[0,0],[-1,1])).squeeze()),a=qe.slice(i,[0,1],[-1,4]),s=this.normalizeBoxes(a),o=await qe.image.nonMaxSuppressionAsync(s,r,this.maxHands,this.iouThreshold,this.scoreThreshold),l=await o.array(),u=[t,e,o,i,s,a,r],c=qe.tidy(()=>{const h=[];for(const d in l){const p=l[d],f=qe.slice(s,[p,0],[1,-1]),m=qe.slice(i,[p,5],[1,14]),g=qe.tidy(()=>this.normalizeLandmarks(m,p).reshape([-1,2]));h.push({boxes:f,palmLandmarks:g})}return h});return u.forEach(h=>h.dispose()),c}async estimateHandBounds(n,t){const e=n.shape[1],i=n.shape[2];this.iouThreshold=t.iouThreshold,this.scoreThreshold=t.scoreThreshold,this.maxHands=t.maxHands;const r=qe.tidy(()=>n.resizeBilinear([this.width,this.height]).div(255)),a=await this.getBoundingBoxes(r);if(r.dispose(),!a||a.length===0)return null;const s=[];for(const o in a){const l=a[o],u=await l.boxes.array(),c=u[0].slice(0,2),h=u[0].slice(2,4),d=await l.palmLandmarks.array();l.boxes.dispose(),l.palmLandmarks.dispose(),s.push(j7.scaleBoxCoordinates({startPoint:c,endPoint:h,palmLandmarks:d},[i/this.width,e/this.height]))}return s}}tI.HandDetector=$7});var rI=be(iI=>{iI.MESH_ANNOTATIONS={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]}});var uI=be(Di=>{function aI(n){return n-2*Math.PI*Math.floor((n+Math.PI)/(2*Math.PI))}Di.normalizeRadians=aI;function X7(n,t){const e=Math.PI/2-Math.atan2(-(t[1]-n[1]),t[0]-n[0]);return aI(e)}Di.computeRotation=X7;const sI=(n,t)=>[[1,0,n],[0,1,t],[0,0,1]];function pa(n,t){let e=0;for(let i=0;i<n.length;i++)e+=n[i]*t[i];return e}Di.dot=pa;function oI(n,t){const e=[];for(let i=0;i<n.length;i++)e.push(n[i][t]);return e}Di.getColumnFrom2DArr=oI;function lI(n,t){const e=[],i=n.length;for(let r=0;r<i;r++){e.push([]);for(let a=0;a<i;a++)e[r].push(pa(n[r],oI(t,a)))}return e}function J7(n,t){const e=Math.cos(n),i=Math.sin(n),r=[[e,-i,0],[i,e,0],[0,0,1]],a=sI(t[0],t[1]),s=lI(a,r),o=sI(-t[0],-t[1]);return lI(s,o)}Di.buildRotationMatrix=J7;function Z7(n){const t=[[n[0][0],n[1][0]],[n[0][1],n[1][1]]],e=[n[0][2],n[1][2]],i=[-pa(t[0],e),-pa(t[1],e)];return[t[0].concat(i[0]),t[1].concat(i[1]),[0,0,1]]}Di.invertTransformMatrix=Z7;function Q7(n,t){return[pa(n,t[0]),pa(n,t[1])]}Di.rotatePoint=Q7});var pI=be(cI=>{const hI=Ut(),Vn=Np(),ki=uI(),eH=.8,tH=[0,-.4],nH=[0,-.1],iH=1.65,dI=[0,5,9,13,17,1,2],rH=0,aH=2;class sH{constructor(n,t,e){this.regionsOfInterest=[],this.runsWithoutHandDetector=0,this.boundingBoxDetector=n,this.meshDetector=t,this.meshWidth=e.inputSize,this.meshHeight=e.inputSize,this.enlargeFactor=e.enlargeFactor}getBoxForPalmLandmarks(n,t){const e=n.map(r=>{const a=[...r,1];return ki.rotatePoint(a,t)}),i=this.calculateLandmarksBoundingBox(e);return Vn.enlargeBox(Vn.squarifyBox(Vn.shiftBox(i,tH)),this.enlargeFactor)}getBoxForHandLandmarks(n){const t=this.calculateLandmarksBoundingBox(n),e=Vn.enlargeBox(Vn.squarifyBox(Vn.shiftBox(t,nH)),iH),i=[];for(let r=0;r<dI.length;r++)i.push(n[dI[r]].slice(0,2));return e.palmLandmarks=i,e}transformRawCoords(n,t,e,i){const r=Vn.getBoxSize(t),a=[r[0]/this.meshWidth,r[1]/this.meshHeight],s=n.map(d=>[a[0]*(d[0]-this.meshWidth/2),a[1]*(d[1]-this.meshHeight/2),d[2]]),o=ki.buildRotationMatrix(e,[0,0]),l=s.map(d=>{const p=ki.rotatePoint(d,o);return[...p,d[2]]}),u=ki.invertTransformMatrix(i),c=[...Vn.getBoxCenter(t),1],h=[ki.dot(c,u[0]),ki.dot(c,u[1])];return l.map(d=>[d[0]+h[0],d[1]+h[1],d[2]])}async estimateHands(n,t){this.maxContinuousChecks=t.skipFrames,this.detectionConfidence=t.minConfidence,this.maxHands=t.maxHands;const e=this.shouldUpdateRegionsOfInterest();if(e===!0){const r=await this.boundingBoxDetector.estimateHandBounds(n,t);this.regionsOfInterest=[];for(const a in r)this.updateRegionsOfInterest(r[a],!0,a);this.runsWithoutHandDetector=0}else this.runsWithoutHandDetector++;const i=[];if(!this.regionsOfInterest)return i;for(const r in this.regionsOfInterest){const a=this.regionsOfInterest[r][0];if(!a)return i;const s=ki.computeRotation(a.palmLandmarks[rH],a.palmLandmarks[aH]),o=Vn.getBoxCenter(a),l=[o[0]/n.shape[2],o[1]/n.shape[1]],u=hI.image.rotateWithOffset(n,s,0,l),c=ki.buildRotationMatrix(-s,o),h=e?this.getBoxForPalmLandmarks(a.palmLandmarks,c):a,d=Vn.cutBoxFromImageAndResize(h,u,[this.meshWidth,this.meshHeight]),p=d.div(255);d.dispose(),u.dispose();const f=this.meshDetector.predict(p),[m,g]=f;p.dispose();const v=m.dataSync()[0];if(m.dispose(),v<t.minConfidence)return g.dispose(),this.regionsOfInterest[r]=[],i;const b=hI.reshape(g,[-1,3]),w=await b.array();g.dispose(),b.dispose();const S=this.transformRawCoords(w,h,s,c),L=this.getBoxForHandLandmarks(S);this.updateRegionsOfInterest(L,!1,r);const x={landmarks:S,confidence:v,box:{topLeft:L.startPoint,bottomRight:L.endPoint}};i.push(x)}return i}calculateLandmarksBoundingBox(n){const t=n.map(a=>a[0]),e=n.map(a=>a[1]),i=[Math.min(...t),Math.min(...e)],r=[Math.max(...t),Math.max(...e)];return{startPoint:i,endPoint:r}}updateRegionsOfInterest(n,t,e){if(t)this.regionsOfInterest[e]=[n];else{const i=this.regionsOfInterest[e][0];let r=0;if(i!=null&&i.startPoint!=null){const[a,s]=n.startPoint,[o,l]=n.endPoint,[u,c]=i.startPoint,[h,d]=i.endPoint,p=Math.max(a,u),f=Math.max(s,c),m=Math.min(o,h),g=Math.min(l,d),v=(m-p)*(g-f),b=(o-a)*(l-s),w=(h-u)*(d-s);r=v/(b+w-v)}this.regionsOfInterest[e][0]=r>eH?i:n}}shouldUpdateRegionsOfInterest(){return!this.regionsOfInterest||this.regionsOfInterest.length===0||this.runsWithoutHandDetector>=this.maxContinuousChecks}}cI.HandPipeline=sH});var gI=be(xp=>{const yr=Ut(),oH=nI(),fI=rI(),lH=pI();class mI{constructor(n){this.pipeline=n}async estimateHands(n,t){this.maxContinuousChecks=t.skipFrames,this.detectionConfidence=t.minConfidence,this.maxHands=t.maxHands;const e=yr.tidy(()=>(n instanceof yr.Tensor||(n=yr.browser.fromPixels(n)),n.toFloat().expandDims(0))),i=await this.pipeline.estimateHands(e,t);e.dispose();const r=[];if(!i)return r;for(const a of i){if(!a)return[];const s={};for(const o of Object.keys(fI.MESH_ANNOTATIONS))s[o]=fI.MESH_ANNOTATIONS[o].map(l=>a.landmarks[l]);r.push({confidence:a.confidence||0,box:a.box?[a.box.topLeft[0],a.box.topLeft[1],a.box.bottomRight[0]-a.box.topLeft[0],a.box.bottomRight[1]-a.box.topLeft[1]]:0,landmarks:a.landmarks,annotations:s})}return r}}xp.HandPose=mI;async function uH(n){if(yr.env().features.IS_NODE){const t=require("fs"),e=await t.readFileSync(n.replace("file://",""));return JSON.parse(e)}return yr.util.fetch(n).then(t=>t.json())}async function cH(n){const[t,e,i]=await Promise.all([uH(n.detector.anchors),yr.loadGraphModel(n.detector.modelPath,{fromTFHub:n.detector.modelPath.includes("tfhub.dev")}),yr.loadGraphModel(n.skeleton.modelPath,{fromTFHub:n.skeleton.modelPath.includes("tfhub.dev")})]),r=new oH.HandDetector(e,t,n),a=new lH.HandPipeline(r,i,n),s=new mI(a);return s}xp.load=cH});var vI=be(hH=>{Ep(hH,{default:()=>dH});var dH={backend:"webgl",console:!0,scoped:!1,face:{enabled:!0,detector:{modelPath:"../models/blazeface/back/model.json",inputSize:256,maxFaces:10,skipFrames:10,minConfidence:.5,iouThreshold:.3,scoreThreshold:.7},mesh:{enabled:!0,modelPath:"../models/facemesh/model.json",inputSize:192},iris:{enabled:!0,modelPath:"../models/iris/model.json",enlargeFactor:2.3,inputSize:64},age:{enabled:!0,modelPath:"../models/ssrnet-age/imdb/model.json",inputSize:64,skipFrames:10},gender:{enabled:!0,minConfidence:.8,modelPath:"../models/ssrnet-gender/imdb/model.json"},emotion:{enabled:!0,inputSize:64,minConfidence:.5,skipFrames:10,useGrayscale:!0,modelPath:"../models/emotion/model.json"}},body:{enabled:!0,modelPath:"../models/posenet/model.json",inputResolution:257,outputStride:16,maxDetections:10,scoreThreshold:.7,nmsRadius:20},hand:{enabled:!0,inputSize:256,skipFrames:10,minConfidence:.5,iouThreshold:.3,scoreThreshold:.7,enlargeFactor:1.65,maxHands:10,detector:{anchors:"../models/handdetect/anchors.json",modelPath:"../models/handdetect/model.json"},skeleton:{modelPath:"../models/handskeleton/model.json"}}}});var bI=be((dV,yI)=>{yI.exports={name:"@vladmandic/human",version:"0.3.6",description:"human: 3D Face Detection, Iris Tracking and Age & Gender Prediction",sideEffects:!1,main:"dist/human.cjs",module:"dist/human.esm.js",browser:"dist/human.esm.js",author:"Vladimir Mandic <mandic00@live.com>",bugs:{url:"https://github.com/vladmandic/human/issues"},homepage:"https://github.com/vladmandic/human#readme",license:"MIT",engines:{node:">=14.0.0"},repository:{type:"git",url:"git+https://github.com/vladmandic/human.git"},dependencies:{},peerDependencies:{},devDependencies:{"@vladmandic/pilogger":"^0.2.6",dayjs:"^1.9.3","simple-git":"^2.21.0","@tensorflow/tfjs":"^2.6.0","@tensorflow/tfjs-node":"^2.6.0",esbuild:"^0.7.15",eslint:"^7.10.0","eslint-config-airbnb-base":"^14.2.0","eslint-plugin-import":"^2.22.1","eslint-plugin-json":"^2.1.2","eslint-plugin-node":"^11.1.0","eslint-plugin-promise":"^4.2.1",rimraf:"^3.0.2"},scripts:{start:"node --trace-warnings --trace-uncaught --no-deprecation demo/node.js",lint:"eslint src/*.js demo/*.js","build-iife":"esbuild --bundle --platform=browser --sourcemap --target=esnext --format=iife --minify --external:fs --global-name=human --metafile=dist/human.json --outfile=dist/human.js src/index.js","build-esm-bundle":"esbuild --bundle --platform=browser --sourcemap --target=esnext --format=esm --minify --external:fs --metafile=dist/human.esm.json --outfile=dist/human.esm.js src/index.js","build-esm-nobundle":"esbuild --bundle --platform=browser --sourcemap --target=esnext --format=esm --minify --external:@tensorflow --external:fs --metafile=dist/human.esm-nobundle.json --outfile=dist/human.esm-nobundle.js src/index.js","build-node":"esbuild --bundle --platform=node --sourcemap --target=esnext --format=cjs --external:@tensorflow --metafile=dist/human.cjs.json --outfile=dist/human.cjs src/index.js",build:"rimraf dist/* && npm run build-iife && npm run build-esm-bundle && npm run build-esm-nobundle && npm run build-node && ls -l dist/",update:"npm update --depth 20 && npm dedupe && npm prune && npm audit",changelog:"node changelog.js"},keywords:["tensorflowjs","face-detection","face-geometry","body-tracking","hand-tracking","iris-tracking","age-estimation","emotion-detection","gender-prediction","gesture-recognition"]}});var TI=be(pn=>{const Fi=Ut(),wI=SL(),nl=IL(),SI=NL(),LI=eI(),II=gI(),Cp=vI().default,pH=bI();let We,xn="idle";const Dt={facemesh:null,posenet:null,handpose:null,iris:null,age:null,gender:null,emotion:null},St=()=>typeof performance!="undefined"?performance.now():parseInt(Number(process.hrtime.bigint())/1e3/1e3),ps=(...n)=>{n&&We.console&&console.log(...n)};let AI=0;const fH=!1,Wi=(...n)=>{if(!fH)return;const t=Fi.engine().state.numTensors,e=AI;AI=t;const i=t-e;i!==0&&ps(...n,i)};function Rp(...n){const t=e=>e&&typeof e=="object";return n.reduce((e,i)=>(Object.keys(i||{}).forEach(r=>{const a=e[r],s=i[r];Array.isArray(a)&&Array.isArray(s)?e[r]=a.concat(...s):t(a)&&t(s)?e[r]=Rp(a,s):e[r]=s}),e),{})}function mH(n){if(!n)return"input is not defined";const t=n.naturalWidth||n.videoWidth||n.width||n.shape&&n.shape[1]>0;if(!t||t===0)return"input is empty";if(n.readyState&&n.readyState<=2)return"input is not ready";try{Fi.getBackend()}catch{return"backend not loaded"}return null}async function gH(n){n&&(We=Rp(Cp,n)),We.face.enabled&&!Dt.facemesh&&(Dt.facemesh=await wI.load(We.face)),We.body.enabled&&!Dt.posenet&&(Dt.posenet=await LI.load(We.body)),We.hand.enabled&&!Dt.handpose&&(Dt.handpose=await II.load(We.hand)),We.face.enabled&&We.face.age.enabled&&!Dt.age&&(Dt.age=await nl.loadAge(We)),We.face.enabled&&We.face.gender.enabled&&!Dt.gender&&(Dt.gender=await nl.loadGender(We)),We.face.enabled&&We.face.emotion.enabled&&!Dt.emotion&&(Dt.emotion=await SI.load(We))}async function vH(n,t={}){xn="config";const e={};let i;i=St(),We=Rp(Cp,t),e.config=Math.trunc(St()-i),i=St(),xn="check";const r=mH(n);return r?(ps(r,n),{error:r}):(e.sanity=Math.trunc(St()-i),new Promise(async a=>{const s=St(),o=Object.values(Dt).filter(h=>h).length;o===0&&ps("Human library starting"),i=St(),Fi.getBackend()!==We.backend&&(xn="backend",ps("Human library setting backend:",We.backend),await Fi.setBackend(We.backend),await Fi.ready()),e.body=Math.trunc(St()-i),i=St(),xn="load",await gH(),e.load=Math.trunc(St()-i),We.scoped&&Fi.engine().startScope(),Wi("Start Detect:"),xn="run:body",i=St(),Wi("Start PoseNet");const l=We.body.enabled?await Dt.posenet.estimatePoses(n,We.body):[];Wi("End PoseNet:"),e.body=Math.trunc(St()-i),xn="run:hand",i=St(),Wi("Start HandPose:");const u=We.hand.enabled?await Dt.handpose.estimateHands(n,We.hand):[];Wi("End HandPose:"),e.hand=Math.trunc(St()-i);const c=[];if(We.face.enabled){xn="run:face",i=St(),Wi("Start FaceMesh:");const h=await Dt.facemesh.estimateFaces(n,We.face);e.face=Math.trunc(St()-i);for(const d of h){if(!d.image||d.image.isDisposedInternal){ps("face object is disposed:",d.image);continue}xn="run:agegender",i=St();const p=We.face.age.enabled||We.face.gender.enabled?await nl.predict(d.image,We):{};e.agegender=Math.trunc(St()-i),xn="run:emotion",i=St();const f=We.face.emotion.enabled?await SI.predict(d.image,We):{};e.emotion=Math.trunc(St()-i),d.image.dispose();const m=d.annotations.leftEyeIris&&d.annotations.rightEyeIris?Math.max(d.annotations.leftEyeIris[3][0]-d.annotations.leftEyeIris[1][0],d.annotations.rightEyeIris[3][0]-d.annotations.rightEyeIris[1][0]):0;c.push({confidence:d.confidence,box:d.box,mesh:d.mesh,annotations:d.annotations,age:p.age,gender:p.gender,agConfidence:p.confidence,emotion:f,iris:m!==0?Math.trunc(100*11.7/m)/100:0})}Wi("End FaceMesh:")}xn="idle",We.scoped&&Fi.engine().endScope(),Wi("End Scope:"),e.total=Math.trunc(St()-s),a({face:c,body:l,hand:u,performance:e})}))}pn.detect=vH;pn.defaults=Cp;pn.config=We;pn.models=Dt;pn.facemesh=wI;pn.ssrnet=nl;pn.posenet=LI;pn.handpose=II;pn.tf=Fi;pn.version=pH.version;pn.state=xn});return TI();})();
/*! *****************************************************************************
Copyright (c) Microsoft Corporation. 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
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/**
 * @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 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 See the LICENSE file. */
//# sourceMappingURL=human.js.map