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"use strict";(self["webpackChunk_jupyterlab_application_top"]=self["webpackChunk_jupyterlab_application_top"]||[]).push([[1168],{61168:(t,e,s)=>{s.r(e);s.d(e,{YBaseCell:()=>S,YCodeCell:()=>C,YDocument:()=>b,YFile:()=>v,YMarkdownCell:()=>U,YNotebook:()=>D,YRawCell:()=>V,convertYMapEventToMapChange:()=>n,createMutex:()=>a,createStandaloneCell:()=>k});function n(t){let e=new Map;t.changes.keys.forEach(((t,s)=>{e.set(s,{action:t.action,oldValue:t.oldValue,newValue:this.ymeta.get(s)})}));return e}const a=()=>{let t=true;return e=>{if(t){t=false;try{e()}finally{t=true}}}};var o=s(5596);var i=s(71372);var r=s(20817);var d=s(14247);var l=s(58290);var c=s(97027);var h=s(66350);const u=3e4;class g extends l.y{constructor(t){super();this.doc=t;this.clientID=t.clientID;this.states=new Map;this.meta=new Map;this._checkInterval=setInterval((()=>{const t=r.ZG();if(this.getLocalState()!==null&&u/2<=t-this.meta.get(this.clientID).lastUpdated){this.setLocalState(this.getLocalState())}const e=[];this.meta.forEach(((s,n)=>{if(n!==this.clientID&&u<=t-s.lastUpdated&&this.states.has(n)){e.push(n)}}));if(e.length>0){p(this,e,"timeout")}}),d.GW(u/10));t.on("destroy",(()=>{this.destroy()}));this.setLocalState({})}destroy(){this.emit("destroy",[this]);this.setLocalState(null);super.destroy();clearInterval(this._checkInterval)}getLocalState(){return this.states.get(this.clientID)||null}setLocalState(t){const e=this.clientID;const s=this.meta.get(e);const n=s===undefined?0:s.clock+1;const a=this.states.get(e);if(t===null){this.states.delete(e)}else{this.states.set(e,t)}this.meta.set(e,{clock:n,lastUpdated:r.ZG()});const o=[];const i=[];const d=[];const l=[];if(t===null){l.push(e)}else if(a==null){if(t!=null){o.push(e)}}else{i.push(e);if(!c.Hi(a,t)){d.push(e)}}if(o.length>0||d.length>0||l.length>0){this.emit("change",[{added:o,updated:d,removed:l},"local"])}this.emit("update",[{added:o,updated:i,removed:l},"local"])}setLocalStateField(t,e){const s=this.getLocalState();if(s!==null){this.setLocalState({...s,[t]:e})}}getStates(){return this.states}}const p=(t,e,s)=>{const n=[];for(let a=0;a<e.length;a++){const s=e[a];if(t.states.has(s)){t.states.delete(s);if(s===t.clientID){const e=t.meta.get(s);t.meta.set(s,{clock:e.clock+1,lastUpdated:r.ZG()})}n.push(s)}}if(n.length>0){t.emit("change",[{added:[],updated:[],removed:n},s]);t.emit("update",[{added:[],updated:[],removed:n},s])}};const m=(t,e,s=t.states)=>{const n=e.length;const a=encoding.createEncoder();encoding.writeVarUint(a,n);for(let o=0;o<n;o++){const n=e[o];const i=s.get(n)||null;const r=t.meta.get(n).clock;encoding.writeVarUint(a,n);encoding.writeVarUint(a,r);encoding.writeVarString(a,JSON.stringify(i))}return encoding.toUint8Array(a)};const y=(t,e)=>{const s=decoding.createDecoder(t);const n=encoding.createEncoder();const a=decoding.readVarUint(s);encoding.writeVarUint(n,a);for(let o=0;o<a;o++){const t=decoding.readVarUint(s);const a=decoding.readVarUint(s);const o=JSON.parse(decoding.readVarString(s));const i=e(o);encoding.writeVarUint(n,t);encoding.writeVarUint(n,a);encoding.writeVarString(n,JSON.stringify(i))}return encoding.toUint8Array(n)};const _=(t,e,s)=>{const n=decoding.createDecoder(e);const a=time.getUnixTime();const o=[];const i=[];const r=[];const d=[];const l=decoding.readVarUint(n);for(let c=0;c<l;c++){const e=decoding.readVarUint(n);let s=decoding.readVarUint(n);const l=JSON.parse(decoding.readVarString(n));const c=t.meta.get(e);const h=t.states.get(e);const u=c===undefined?0:c.clock;if(u<s||u===s&&l===null&&t.states.has(e)){if(l===null){if(e===t.clientID&&t.getLocalState()!=null){s++}else{t.states.delete(e)}}else{t.states.set(e,l)}t.meta.set(e,{clock:s,lastUpdated:a});if(c===undefined&&l!==null){o.push(e)}else if(c!==undefined&&l===null){d.push(e)}else if(l!==null){if(!f.equalityDeep(l,h)){r.push(e)}i.push(e)}}}if(o.length>0||r.length>0||d.length>0){t.emit("change",[{added:o,updated:r,removed:d},s])}if(o.length>0||i.length>0||d.length>0){t.emit("update",[{added:o,updated:i,removed:d},s])}};class b{constructor(t){var e;this.onStateChanged=t=>{const e=new Array;t.keysChanged.forEach((s=>{const n=t.changes.keys.get(s);if(n){e.push({name:s,oldValue:n.oldValue,newValue:this.ystate.get(s)})}}));this._changed.emit({stateChange:e})};this._changed=new i.Signal(this);this._isDisposed=false;this._disposed=new i.Signal(this);this._ydoc=(e=t===null||t===void 0?void 0:t.ydoc)!==null&&e!==void 0?e:new h.Doc;this._ystate=this._ydoc.getMap("state");this._undoManager=new h.UndoManager([],{trackedOrigins:new Set([this]),doc:this._ydoc});this._awareness=new g(this._ydoc);this._ystate.observe(this.onStateChanged)}get ydoc(){return this._ydoc}get ystate(){return this._ystate}get undoManager(){return this._undoManager}get awareness(){return this._awareness}get changed(){return this._changed}get disposed(){return this._disposed}get isDisposed(){return this._isDisposed}get state(){return o.JSONExt.deepCopy(this.ystate.toJSON())}canUndo(){return this.undoManager.undoStack.length>0}canRedo(){return this.undoManager.redoStack.length>0}dispose(){if(this._isDisposed){return}this._isDisposed=true;this.ystate.unobserve(this.onStateChanged);this.awareness.destroy();this.undoManager.destroy();this.ydoc.destroy();this._disposed.emit();i.Signal.clearData(this)}getState(t){const e=this.ystate.get(t);return typeof e==="undefined"?e:o.JSONExt.deepCopy(e)}setState(t,e){if(!o.JSONExt.deepEqual(this.ystate.get(t),e)){this.ystate.set(t,e)}}undo(){this.undoManager.undo()}redo(){this.undoManager.redo()}clearUndoHistory(){this.undoManager.clear()}transact(t,e=true){this.ydoc.transact(t,e?this:null)}}class v extends b{constructor(){super();this.version="1.0.0";this.ysource=this.ydoc.getText("source");this._modelObserver=t=>{this._changed.emit({sourceChange:t.changes.delta})};this.undoManager.addToScope(this.ysource);this.ysource.observe(this._modelObserver)}static create(){return new v}get source(){return this.getSource()}set source(t){this.setSource(t)}dispose(){if(this.isDisposed){return}this.ysource.unobserve(this._modelObserver);super.dispose()}getSource(){return this.ysource.toString()}setSource(t){this.transact((()=>{const e=this.ysource;e.delete(0,e.length);e.insert(0,t)}))}updateSource(t,e,s=""){this.transact((()=>{const n=this.ysource;n.insert(t,s);n.delete(t+s.length,e-t)}))}}const M=(t,e={})=>{switch(t.get("cell_type")){case"code":return new C(t,t.get("source"),t.get("outputs"),e);case"markdown":return new U(t,t.get("source"),e);case"raw":return new V(t,t.get("source"),e);default:throw new Error("Found unknown cell type")}};const w=(t,e)=>{var s,n;const a=new h.Map;const i=new h.Text;const r=new h.Map;a.set("source",i);a.set("metadata",r);a.set("cell_type",t.cell_type);a.set("id",(s=t.id)!==null&&s!==void 0?s:o.UUID.uuid4());let d;switch(t.cell_type){case"markdown":{d=new U(a,i,{notebook:e},r);if(t.attachments!=null){d.setAttachments(t.attachments)}break}case"code":{const s=new h.Array;a.set("outputs",s);d=new C(a,i,s,{notebook:e},r);const o=t;d.execution_count=(n=o.execution_count)!==null&&n!==void 0?n:null;if(o.outputs){d.setOutputs(o.outputs)}break}default:{d=new V(a,i,{notebook:e},r);if(t.attachments){d.setAttachments(t.attachments)}break}}if(t.metadata!=null){d.setMetadata(t.metadata)}if(t.source!=null){d.setSource(typeof t.source==="string"?t.source:t.source.join(""))}return d};const k=t=>w(t);class S{static create(t){return w({id:t,cell_type:this.prototype.cell_type})}constructor(t,e,s={},n){this._modelObserver=t=>{this._changed.emit(this.getChanges(t))};this._metadataChanged=new i.Signal(this);this._notebook=null;this._changed=new i.Signal(this);this._disposed=new i.Signal(this);this._isDisposed=false;this._undoManager=null;this.ymodel=t;this._ysource=e;this._ymetadata=n!==null&&n!==void 0?n:this.ymodel.get("metadata");this._prevSourceLength=e?e.length:0;this._notebook=null;this._awareness=null;this._undoManager=null;if(s.notebook){this._notebook=s.notebook}else{const t=new h.Doc;t.getArray().insert(0,[this.ymodel]);this._awareness=new g(t);this._undoManager=new h.UndoManager([this.ymodel],{trackedOrigins:new Set([this])})}this.ymodel.observeDeep(this._modelObserver)}get awareness(){var t,e,s;return(s=(t=this._awareness)!==null&&t!==void 0?t:(e=this.notebook)===null||e===void 0?void 0:e.awareness)!==null&&s!==void 0?s:null}get cell_type(){throw new Error("A YBaseCell must not be constructed")}get changed(){return this._changed}get disposed(){return this._disposed}get id(){return this.getId()}get isDisposed(){return this._isDisposed}get isStandalone(){return this._notebook!==null}get metadata(){return this.getMetadata()}set metadata(t){this.setMetadata(t)}get metadataChanged(){return this._metadataChanged}get notebook(){return this._notebook}get source(){return this.getSource()}set source(t){this.setSource(t)}get undoManager(){var t;if(!this.notebook){return this._undoManager}return((t=this.notebook)===null||t===void 0?void 0:t.disableDocumentWideUndoRedo)?this._undoManager:this.notebook.undoManager}setUndoManager(){if(this._undoManager){throw new Error("The cell undo manager is already set.")}if(this._notebook&&this._notebook.disableDocumentWideUndoRedo){this._undoManager=new h.UndoManager([this.ymodel],{trackedOrigins:new Set([this])})}}get ysource(){return this._ysource}canUndo(){return!!this.undoManager&&this.undoManager.undoStack.length>0}canRedo(){return!!this.undoManager&&this.undoManager.redoStack.length>0}clearUndoHistory(){var t;(t=this.undoManager)===null||t===void 0?void 0:t.clear()}undo(){var t;(t=this.undoManager)===null||t===void 0?void 0:t.undo()}redo(){var t;(t=this.undoManager)===null||t===void 0?void 0:t.redo()}dispose(){var t;if(this._isDisposed)return;this._isDisposed=true;this.ymodel.unobserveDeep(this._modelObserver);if(this._awareness){const t=this._awareness.doc;this._awareness.destroy();t.destroy()}if(this._undoManager){if(this._undoManager===((t=this.notebook)===null||t===void 0?void 0:t.undoManager)){this._undoManager=null}else{this._undoManager.destroy()}}this._disposed.emit();i.Signal.clearData(this)}getId(){return this.ymodel.get("id")}getSource(){return this.ysource.toString()}setSource(t){this.transact((()=>{this.ysource.delete(0,this.ysource.length);this.ysource.insert(0,t)}))}updateSource(t,e,s=""){this.transact((()=>{const n=this.ysource;n.insert(t,s);n.delete(t+s.length,e-t)}))}deleteMetadata(t){if(typeof this.getMetadata(t)==="undefined"){return}this.transact((()=>{this._ymetadata.delete(t);const e=this.getMetadata("jupyter");if(t==="collapsed"&&e){const{outputs_hidden:t,...s}=e;if(Object.keys(s).length===0){this._ymetadata.delete("jupyter")}else{this._ymetadata.set("jupyter",s)}}else if(t==="jupyter"){this._ymetadata.delete("collapsed")}}),false)}getMetadata(t){const e=this._ymetadata;if(e===undefined){return undefined}if(typeof t==="string"){const s=e.get(t);return typeof s==="undefined"?undefined:o.JSONExt.deepCopy(e.get(t))}else{return o.JSONExt.deepCopy(e.toJSON())}}setMetadata(t,e){var s,n;if(typeof t==="string"){if(typeof e==="undefined"){throw new TypeError(`Metadata value for ${t} cannot be 'undefined'; use deleteMetadata.`)}const n=t;if(o.JSONExt.deepEqual((s=this.getMetadata(n))!==null&&s!==void 0?s:null,e)){return}this.transact((()=>{var t;this._ymetadata.set(n,e);if(n==="collapsed"){const s=(t=this.getMetadata("jupyter"))!==null&&t!==void 0?t:{};if(s.outputs_hidden!==e){this.setMetadata("jupyter",{...s,outputs_hidden:e})}}else if(n==="jupyter"){const t=e["outputs_hidden"];if(typeof t!=="undefined"){if(this.getMetadata("collapsed")!==t){this.setMetadata("collapsed",t)}}else{this.deleteMetadata("collapsed")}}}),false)}else{const e=o.JSONExt.deepCopy(t);if(e.collapsed!=null){e.jupyter=e.jupyter||{};e.jupyter.outputs_hidden=e.collapsed}else if(((n=e===null||e===void 0?void 0:e.jupyter)===null||n===void 0?void 0:n.outputs_hidden)!=null){e.collapsed=e.jupyter.outputs_hidden}if(!o.JSONExt.deepEqual(e,this.getMetadata())){this.transact((()=>{for(const[t,s]of Object.entries(e)){this._ymetadata.set(t,s)}}),false)}}}toJSON(){return{id:this.getId(),cell_type:this.cell_type,source:this.getSource(),metadata:this.getMetadata()}}transact(t,e=true){!this.notebook||this.notebook.disableDocumentWideUndoRedo?this.ymodel.doc==null?t():this.ymodel.doc.transact(t,e?this:null):this.notebook.transact(t,e)}getChanges(t){const e={};const s=t.find((t=>t.target===this.ymodel.get("source")));if(s){e.sourceChange=s.changes.delta}const n=t.find((t=>t.target===this._ymetadata));if(n){e.metadataChange=n.changes.keys;n.changes.keys.forEach(((t,e)=>{switch(t.action){case"add":this._metadataChanged.emit({key:e,newValue:this._ymetadata.get(e),type:"add"});break;case"delete":this._metadataChanged.emit({key:e,oldValue:t.oldValue,type:"remove"});break;case"update":{const s=this._ymetadata.get(e);const n=t.oldValue;let a=true;if(typeof n=="object"&&typeof s=="object"){a=o.JSONExt.deepEqual(n,s)}else{a=n===s}if(!a){this._metadataChanged.emit({key:e,type:"change",oldValue:n,newValue:s})}}break}}))}const a=t.find((t=>t.target===this.ymodel));const i=this.ymodel.get("source");if(a&&a.keysChanged.has("source")){e.sourceChange=[{delete:this._prevSourceLength},{insert:i.toString()}]}this._prevSourceLength=i.length;return e}}class C extends S{static create(t){return super.create(t)}constructor(t,e,s,n={},a){super(t,e,n,a);this._youtputs=s}get cell_type(){return"code"}get execution_count(){return this.ymodel.get("execution_count")||null}set execution_count(t){if(this.ymodel.get("execution_count")!==t){this.transact((()=>{this.ymodel.set("execution_count",t)}),false)}}get outputs(){return this.getOutputs()}set outputs(t){this.setOutputs(t)}getOutputs(){return o.JSONExt.deepCopy(this._youtputs.toArray())}setOutputs(t){this.transact((()=>{this._youtputs.delete(0,this._youtputs.length);this._youtputs.insert(0,t)}),false)}updateOutputs(t,e,s=[]){const n=e<this._youtputs.length?e-t:this._youtputs.length-t;this.transact((()=>{this._youtputs.delete(t,n);this._youtputs.insert(t,s)}),false)}toJSON(){return{...super.toJSON(),outputs:this.getOutputs(),execution_count:this.execution_count}}getChanges(t){const e=super.getChanges(t);const s=t.find((t=>t.target===this.ymodel.get("outputs")));if(s){e.outputsChange=s.changes.delta}const n=t.find((t=>t.target===this.ymodel));if(n&&n.keysChanged.has("execution_count")){const t=n.changes.keys.get("execution_count");e.executionCountChange={oldValue:t.oldValue,newValue:this.ymodel.get("execution_count")}}return e}}class O extends S{get attachments(){return this.getAttachments()}set attachments(t){this.setAttachments(t)}getAttachments(){return this.ymodel.get("attachments")}setAttachments(t){this.transact((()=>{if(t==null){this.ymodel.delete("attachments")}else{this.ymodel.set("attachments",t)}}),false)}getChanges(t){const e=super.getChanges(t);const s=t.find((t=>t.target===this.ymodel));if(s&&s.keysChanged.has("attachments")){const t=s.changes.keys.get("attachments");e.executionCountChange={oldValue:t.oldValue,newValue:this.ymodel.get("attachments")}}return e}}class V extends O{static create(t){return super.create(t)}get cell_type(){return"raw"}toJSON(){return{id:this.getId(),cell_type:"raw",source:this.getSource(),metadata:this.getMetadata(),attachments:this.getAttachments()}}}class U extends O{static create(t){return super.create(t)}get cell_type(){return"markdown"}toJSON(){return{id:this.getId(),cell_type:"markdown",source:this.getSource(),metadata:this.getMetadata(),attachments:this.getAttachments()}}}class D extends b{constructor(t={}){var e;super();this.version="1.0.0";this.ymeta=this.ydoc.getMap("meta");this._onMetaChanged=t=>{const e=t.find((t=>t.target===this.ymeta.get("metadata")));if(e){const t=e.changes.keys;const s=this.ymeta.get("metadata");e.changes.keys.forEach(((t,e)=>{switch(t.action){case"add":this._metadataChanged.emit({key:e,type:"add",newValue:s.get(e)});break;case"delete":this._metadataChanged.emit({key:e,type:"remove",oldValue:t.oldValue});break;case"update":{const n=s.get(e);const a=t.oldValue;let i=true;if(typeof a=="object"&&typeof n=="object"){i=o.JSONExt.deepEqual(a,n)}else{i=a===n}if(!i){this._metadataChanged.emit({key:e,type:"change",oldValue:a,newValue:n})}}break}}));this._changed.emit({metadataChange:t})}const s=t.find((t=>t.target===this.ymeta));if(!s){return}if(s.keysChanged.has("metadata")){const t=s.changes.keys.get("metadata");if((t===null||t===void 0?void 0:t.action)==="add"&&!t.oldValue){const t=new Map;for(const e of Object.keys(this.metadata)){t.set(e,{action:"add",oldValue:undefined});this._metadataChanged.emit({key:e,type:"add",newValue:this.getMetadata(e)})}this._changed.emit({metadataChange:t})}}if(s.keysChanged.has("nbformat")){const t=s.changes.keys.get("nbformat");const e={key:"nbformat",oldValue:(t===null||t===void 0?void 0:t.oldValue)?t.oldValue:undefined,newValue:this.nbformat};this._changed.emit({nbformatChanged:e})}if(s.keysChanged.has("nbformat_minor")){const t=s.changes.keys.get("nbformat_minor");const e={key:"nbformat_minor",oldValue:(t===null||t===void 0?void 0:t.oldValue)?t.oldValue:undefined,newValue:this.nbformat_minor};this._changed.emit({nbformatChanged:e})}};this._onYCellsChanged=t=>{t.changes.added.forEach((t=>{const e=t.content.type;if(!this._ycellMapping.has(e)){const t=M(e,{notebook:this});t.setUndoManager();this._ycellMapping.set(e,t)}}));t.changes.deleted.forEach((t=>{const e=t.content.type;const s=this._ycellMapping.get(e);if(s){s.dispose();this._ycellMapping.delete(e)}}));let e=0;const s=[];t.changes.delta.forEach((t=>{if(t.insert!=null){const n=t.insert.map((t=>this._ycellMapping.get(t)));s.push({insert:n});this.cells.splice(e,0,...n);e+=t.insert.length}else if(t.delete!=null){s.push(t);this.cells.splice(e,t.delete)}else if(t.retain!=null){s.push(t);e+=t.retain}}));this._changed.emit({cellsChange:s})};this._metadataChanged=new i.Signal(this);this._ycells=this.ydoc.getArray("cells");this._ycellMapping=new WeakMap;this._disableDocumentWideUndoRedo=(e=t.disableDocumentWideUndoRedo)!==null&&e!==void 0?e:false;this.cells=this._ycells.toArray().map((t=>{if(!this._ycellMapping.has(t)){this._ycellMapping.set(t,M(t,{notebook:this}))}return this._ycellMapping.get(t)}));this.undoManager.addToScope(this._ycells);this._ycells.observe(this._onYCellsChanged);this.ymeta.observeDeep(this._onMetaChanged)}static create(t={}){var e,s,n,a,o,i,r,d,l;const c=new D({disableDocumentWideUndoRedo:(e=t.disableDocumentWideUndoRedo)!==null&&e!==void 0?e:false});const h={cells:(n=(s=t.data)===null||s===void 0?void 0:s.cells)!==null&&n!==void 0?n:[],nbformat:(o=(a=t.data)===null||a===void 0?void 0:a.nbformat)!==null&&o!==void 0?o:4,nbformat_minor:(r=(i=t.data)===null||i===void 0?void 0:i.nbformat_minor)!==null&&r!==void 0?r:5,metadata:(l=(d=t.data)===null||d===void 0?void 0:d.metadata)!==null&&l!==void 0?l:{}};c.fromJSON(h);return c}get disableDocumentWideUndoRedo(){return this._disableDocumentWideUndoRedo}get metadata(){return this.getMetadata()}set metadata(t){this.setMetadata(t)}get metadataChanged(){return this._metadataChanged}get nbformat(){return this.ymeta.get("nbformat")}set nbformat(t){this.transact((()=>{this.ymeta.set("nbformat",t)}),false)}get nbformat_minor(){return this.ymeta.get("nbformat_minor")}set nbformat_minor(t){this.transact((()=>{this.ymeta.set("nbformat_minor",t)}),false)}dispose(){if(this.isDisposed){return}this._ycells.unobserve(this._onYCellsChanged);this.ymeta.unobserveDeep(this._onMetaChanged);super.dispose()}getCell(t){return this.cells[t]}addCell(t){return this.insertCell(this._ycells.length,t)}insertCell(t,e){return this.insertCells(t,[e])[0]}insertCells(t,e){const s=e.map((t=>{const e=w(t,this);this._ycellMapping.set(e.ymodel,e);return e}));this.transact((()=>{this._ycells.insert(t,s.map((t=>t.ymodel)))}));s.forEach((t=>{t.setUndoManager()}));return s}moveCell(t,e){this.moveCells(t,e)}moveCells(t,e,s=1){const n=new Array(s).fill(true).map(((e,s)=>this.getCell(t+s).toJSON()));this.transact((()=>{this._ycells.delete(t,s);this._ycells.insert(t>e?e:e-s+1,n.map((t=>w(t,this).ymodel)))}))}deleteCell(t){this.deleteCellRange(t,t+1)}deleteCellRange(t,e){this.transact((()=>{this._ycells.delete(t,e-t)}))}deleteMetadata(t){if(typeof this.getMetadata(t)==="undefined"){return}const e=this.metadata;delete e[t];this.setMetadata(e)}getMetadata(t){const e=this.ymeta.get("metadata");if(e===undefined){return undefined}if(typeof t==="string"){const s=e.get(t);return typeof s==="undefined"?undefined:o.JSONExt.deepCopy(s)}else{return o.JSONExt.deepCopy(e.toJSON())}}setMetadata(t,e){var s;if(typeof t==="string"){if(typeof e==="undefined"){throw new TypeError(`Metadata value for ${t} cannot be 'undefined'; use deleteMetadata.`)}if(o.JSONExt.deepEqual((s=this.getMetadata(t))!==null&&s!==void 0?s:null,e)){return}const n={};n[t]=e;this.updateMetadata(n)}else{if(!this.metadata||!o.JSONExt.deepEqual(this.metadata,t)){const 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