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of error '"+e+"'."),[2,Promise.reject(e)];case 4:return[2]}}))}))},e.prototype.startInternal=function(){return k(this,void 0,void 0,(function(){var e,t,n,r=this;return T(this,(function(o){switch(o.label){case 0:return this.stopDuringStartError=void 0,this.receivedHandshakeResponse=!1,e=new Promise((function(e,t){r.handshakeResolver=e,r.handshakeRejecter=t})),[4,this.connection.start(this.protocol.transferFormat)];case 1:o.sent(),o.label=2;case 2:return o.trys.push([2,5,,7]),t={protocol:this.protocol.name,version:this.protocol.version},this.logger.log(f.a.Debug,"Sending handshake request."),[4,this.sendMessage(this.handshakeProtocol.writeHandshakeRequest(t))];case 3:return o.sent(),this.logger.log(f.a.Information,"Using HubProtocol '"+this.protocol.name+"'."),this.cleanupTimeout(),this.resetTimeoutPeriod(),this.resetKeepAliveInterval(),[4,e];case 4:if(o.sent(),this.stopDuringStartError)throw this.stopDuringStartError;return[3,7];case 5:return n=o.sent(),this.logger.log(f.a.Debug,"Hub handshake failed with error '"+n+"' during start(). Stopping HubConnection."),this.cleanupTimeout(),this.cleanupPingTimer(),[4,this.connection.stop(n)];case 6:throw o.sent(),n;case 7:return[2]}}))}))},e.prototype.stop=function(){return k(this,void 0,void 0,(function(){var e;return T(this,(function(t){switch(t.label){case 0:return e=this.startPromise,this.stopPromise=this.stopInternal(),[4,this.stopPromise];case 1:t.sent(),t.label=2;case 2:return t.trys.push([2,4,,5]),[4,e];case 3:return t.sent(),[3,5];case 4:return t.sent(),[3,5];case 5:return[2]}}))}))},e.prototype.stopInternal=function(e){return this.connectionState===I.Disconnected?(this.logger.log(f.a.Debug,"Call to HubConnection.stop("+e+") ignored because it is already in the disconnected state."),Promise.resolve()):this.connectionState===I.Disconnecting?(this.logger.log(f.a.Debug,"Call to HttpConnection.stop("+e+") ignored because the connection is already in the disconnecting state."),this.stopPromise):(this.connectionState=I.Disconnecting,this.logger.log(f.a.Debug,"Stopping HubConnection."),this.reconnectDelayHandle?(this.logger.log(f.a.Debug,"Connection stopped during reconnect delay. Done reconnecting."),clearTimeout(this.reconnectDelayHandle),this.reconnectDelayHandle=void 0,this.completeClose(),Promise.resolve()):(this.cleanupTimeout(),this.cleanupPingTimer(),this.stopDuringStartError=e||new Error("The connection was stopped before the hub handshake could complete."),this.connection.stop(e)))},e.prototype.stream=function(e){for(var t=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];var o,i=this.replaceStreamingParams(n),a=i[0],s=i[1],c=this.createStreamInvocation(e,n,s),u=new _;return u.cancelCallback=function(){var e=t.createCancelInvocation(c.invocationId);return delete t.callbacks[c.invocationId],o.then((function(){return t.sendWithProtocol(e)}))},this.callbacks[c.invocationId]=function(e,t){t?u.error(t):e&&(e.type===b.Completion?e.error?u.error(new Error(e.error)):u.complete():u.next(e.item))},o=this.sendWithProtocol(c).catch((function(e){u.error(e),delete t.callbacks[c.invocationId]})),this.launchStreams(a,o),u},e.prototype.sendMessage=function(e){return this.resetKeepAliveInterval(),this.connection.send(e)},e.prototype.sendWithProtocol=function(e){return this.sendMessage(this.protocol.writeMessage(e))},e.prototype.send=function(e){for(var t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];var r=this.replaceStreamingParams(t),o=r[0],i=r[1],a=this.sendWithProtocol(this.createInvocation(e,t,!0,i));return this.launchStreams(o,a),a},e.prototype.invoke=function(e){for(var t=this,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];var o=this.replaceStreamingParams(n),i=o[0],a=o[1],s=this.createInvocation(e,n,!1,a),c=new Promise((function(e,n){t.callbacks[s.invocationId]=function(t,r){r?n(r):t&&(t.type===b.Completion?t.error?n(new Error(t.error)):e(t.result):n(new Error("Unexpected message type: "+t.type)))};var r=t.sendWithProtocol(s).catch((function(e){n(e),delete t.callbacks[s.invocationId]}));t.launchStreams(i,r)}));return c},e.prototype.on=function(e,t){e&&t&&(e=e.toLowerCase(),this.methods[e]||(this.methods[e]=[]),-1===this.methods[e].indexOf(t)&&this.methods[e].push(t))},e.prototype.off=function(e,t){if(e){e=e.toLowerCase();var n=this.methods[e];if(n)if(t){var r=n.indexOf(t);-1!==r&&(n.splice(r,1),0===n.length&&delete this.methods[e])}else delete this.methods[e]}},e.prototype.onclose=function(e){e&&this.closedCallbacks.push(e)},e.prototype.onreconnecting=function(e){e&&this.reconnectingCallbacks.push(e)},e.prototype.onreconnected=function(e){e&&this.reconnectedCallbacks.push(e)},e.prototype.processIncomingData=function(e){if(this.cleanupTimeout(),this.receivedHandshakeResponse||(e=this.processHandshakeResponse(e),this.receivedHandshakeResponse=!0),e)for(var t=0,n=this.protocol.parseMessages(e,this.logger);t<n.length;t++){var r=n[t];switch(r.type){case b.Invocation:this.invokeClientMethod(r);break;case b.StreamItem:case b.Completion:var o=this.callbacks[r.invocationId];o&&(r.type===b.Completion&&delete this.callbacks[r.invocationId],o(r));break;case b.Ping:break;case b.Close:this.logger.log(f.a.Information,"Close message received from server.");var i=r.error?new Error("Server returned an error on close: "+r.error):void 0;!0===r.allowReconnect?this.connection.stop(i):this.stopPromise=this.stopInternal(i);break;default:this.logger.log(f.a.Warning,"Invalid message type: "+r.type+".")}}this.resetTimeoutPeriod()},e.prototype.processHandshakeResponse=function(e){var t,n,r;try{r=(t=this.handshakeProtocol.parseHandshakeResponse(e))[0],n=t[1]}catch(e){var o="Error parsing handshake response: "+e;this.logger.log(f.a.Error,o);var i=new Error(o);throw this.handshakeRejecter(i),i}if(n.error){o="Server returned handshake error: "+n.error;this.logger.log(f.a.Error,o);i=new Error(o);throw this.handshakeRejecter(i),i}return this.logger.log(f.a.Debug,"Server handshake complete."),this.handshakeResolver(),r},e.prototype.resetKeepAliveInterval=function(){var e=this;this.connection.features.inherentKeepAlive||(this.cleanupPingTimer(),this.pingServerHandle=setTimeout((function(){return k(e,void 0,void 0,(function(){return T(this,(function(e){switch(e.label){case 0:if(this.connectionState!==I.Connected)return[3,4];e.label=1;case 1:return e.trys.push([1,3,,4]),[4,this.sendMessage(this.cachedPingMessage)];case 2:return e.sent(),[3,4];case 3:return e.sent(),this.cleanupPingTimer(),[3,4];case 4:return[2]}}))}))}),this.keepAliveIntervalInMilliseconds))},e.prototype.resetTimeoutPeriod=function(){var e=this;this.connection.features&&this.connection.features.inherentKeepAlive||(this.timeoutHandle=setTimeout((function(){return e.serverTimeout()}),this.serverTimeoutInMilliseconds))},e.prototype.serverTimeout=function(){this.connection.stop(new Error("Server timeout elapsed without receiving a message from the server."))},e.prototype.invokeClientMethod=function(e){var t=this,n=this.methods[e.target.toLowerCase()];if(n){try{n.forEach((function(n){return n.apply(t,e.arguments)}))}catch(t){this.logger.log(f.a.Error,"A callback for the method "+e.target.toLowerCase()+" threw error '"+t+"'.")}if(e.invocationId){var r="Server requested a response, which is not supported in this version of the client.";this.logger.log(f.a.Error,r),this.stopPromise=this.stopInternal(new Error(r))}}else this.logger.log(f.a.Warning,"No client method with the name '"+e.target+"' found.")},e.prototype.connectionClosed=function(e){this.logger.log(f.a.Debug,"HubConnection.connectionClosed("+e+") called while in state "+this.connectionState+"."),this.stopDuringStartError=this.stopDuringStartError||e||new Error("The underlying connection was closed before the hub handshake could complete."),this.handshakeResolver&&this.handshakeResolver(),this.cancelCallbacksWithError(e||new Error("Invocation canceled due to the underlying connection being closed.")),this.cleanupTimeout(),this.cleanupPingTimer(),this.connectionState===I.Disconnecting?this.completeClose(e):this.connectionState===I.Connected&&this.reconnectPolicy?this.reconnect(e):this.connectionState===I.Connected&&this.completeClose(e)},e.prototype.completeClose=function(e){var t=this;if(this.connectionStarted){this.connectionState=I.Disconnected,this.connectionStarted=!1;try{this.closedCallbacks.forEach((function(n){return n.apply(t,[e])}))}catch(t){this.logger.log(f.a.Error,"An onclose callback called with error '"+e+"' threw error '"+t+"'.")}}},e.prototype.reconnect=function(e){return k(this,void 0,void 0,(function(){var t,n,r,o,i,a=this;return T(this,(function(s){switch(s.label){case 0:if(t=Date.now(),n=0,r=void 0!==e?e:new Error("Attempting to reconnect due to a unknown error."),null===(o=this.getNextRetryDelay(n++,0,r)))return this.logger.log(f.a.Debug,"Connection not reconnecting because the IRetryPolicy returned null on the first reconnect attempt."),this.completeClose(e),[2];if(this.connectionState=I.Reconnecting,e?this.logger.log(f.a.Information,"Connection reconnecting because of error '"+e+"'."):this.logger.log(f.a.Information,"Connection reconnecting."),this.onreconnecting){try{this.reconnectingCallbacks.forEach((function(t){return t.apply(a,[e])}))}catch(t){this.logger.log(f.a.Error,"An onreconnecting callback called with error '"+e+"' threw error '"+t+"'.")}if(this.connectionState!==I.Reconnecting)return this.logger.log(f.a.Debug,"Connection left the reconnecting state in onreconnecting callback. Done reconnecting."),[2]}s.label=1;case 1:return null===o?[3,7]:(this.logger.log(f.a.Information,"Reconnect attempt number "+n+" will start in "+o+" ms."),[4,new Promise((function(e){a.reconnectDelayHandle=setTimeout(e,o)}))]);case 2:if(s.sent(),this.reconnectDelayHandle=void 0,this.connectionState!==I.Reconnecting)return this.logger.log(f.a.Debug,"Connection left the reconnecting state during reconnect delay. Done reconnecting."),[2];s.label=3;case 3:return s.trys.push([3,5,,6]),[4,this.startInternal()];case 4:if(s.sent(),this.connectionState=I.Connected,this.logger.log(f.a.Information,"HubConnection reconnected successfully."),this.onreconnected)try{this.reconnectedCallbacks.forEach((function(e){return e.apply(a,[a.connection.connectionId])}))}catch(e){this.logger.log(f.a.Error,"An onreconnected callback called with connectionId '"+this.connection.connectionId+"; threw error '"+e+"'.")}return[2];case 5:return i=s.sent(),this.logger.log(f.a.Information,"Reconnect attempt failed because of error '"+i+"'."),this.connectionState!==I.Reconnecting?(this.logger.log(f.a.Debug,"Connection left the reconnecting state during reconnect attempt. Done reconnecting."),[2]):(r=i instanceof Error?i:new Error(i.toString()),o=this.getNextRetryDelay(n++,Date.now()-t,r),[3,6]);case 6:return[3,1];case 7:return this.logger.log(f.a.Information,"Reconnect retries have been exhausted after "+(Date.now()-t)+" ms and "+n+" failed attempts. Connection disconnecting."),this.completeClose(),[2]}}))}))},e.prototype.getNextRetryDelay=function(e,t,n){try{return this.reconnectPolicy.nextRetryDelayInMilliseconds({elapsedMilliseconds:t,previousRetryCount:e,retryReason:n})}catch(n){return this.logger.log(f.a.Error,"IRetryPolicy.nextRetryDelayInMilliseconds("+e+", "+t+") threw error '"+n+"'."),null}},e.prototype.cancelCallbacksWithError=function(e){var t=this.callbacks;this.callbacks={},Object.keys(t).forEach((function(n){(0,t[n])(null,e)}))},e.prototype.cleanupPingTimer=function(){this.pingServerHandle&&clearTimeout(this.pingServerHandle)},e.prototype.cleanupTimeout=function(){this.timeoutHandle&&clearTimeout(this.timeoutHandle)},e.prototype.createInvocation=function(e,t,n,r){if(n)return 0!==r.length?{arguments:t,streamIds:r,target:e,type:b.Invocation}:{arguments:t,target:e,type:b.Invocation};var o=this.invocationId;return this.invocationId++,0!==r.length?{arguments:t,invocationId:o.toString(),streamIds:r,target:e,type:b.Invocation}:{arguments:t,invocationId:o.toString(),target:e,type:b.Invocation}},e.prototype.launchStreams=function(e,t){var n=this;if(0!==e.length){t||(t=Promise.resolve());var r=function(r){e[r].subscribe({complete:function(){t=t.then((function(){return n.sendWithProtocol(n.createCompletionMessage(r))}))},error:function(e){var o;o=e instanceof Error?e.message:e&&e.toString?e.toString():"Unknown error",t=t.then((function(){return n.sendWithProtocol(n.createCompletionMessage(r,o))}))},next:function(e){t=t.then((function(){return n.sendWithProtocol(n.createStreamItemMessage(r,e))}))}})};for(var o in e)r(o)}},e.prototype.replaceStreamingParams=function(e){for(var t=[],n=[],r=0;r<e.length;r++){var o=e[r];if(this.isObservable(o)){var i=this.invocationId;this.invocationId++,t[i]=o,n.push(i.toString()),e.splice(r,1)}}return[t,n]},e.prototype.isObservable=function(e){return e&&e.subscribe&&"function"==typeof e.subscribe},e.prototype.createStreamInvocation=function(e,t,n){var r=this.invocationId;return this.invocationId++,0!==n.length?{arguments:t,invocationId:r.toString(),streamIds:n,target:e,type:b.StreamInvocation}:{arguments:t,invocationId:r.toString(),target:e,type:b.StreamInvocation}},e.prototype.createCancelInvocation=function(e){return{invocationId:e,type:b.CancelInvocation}},e.prototype.createStreamItemMessage=function(e,t){return{invocationId:e,item:t,type:b.StreamItem}},e.prototype.createCompletionMessage=function(e,t,n){return t?{error:t,invocationId:e,type:b.Completion}:{invocationId:e,result:n,type:b.Completion}},e}(),R=[0,2e3,1e4,3e4,null],L=function(){function e(e){this.retryDelays=void 0!==e?e.concat([null]):R}return e.prototype.nextRetryDelayInMilliseconds=function(e){return this.retryDelays[e.previousRetryCount]},e}();!function(e){e[e.None=0]="None",e[e.WebSockets=1]="WebSockets",e[e.ServerSentEvents=2]="ServerSentEvents",e[e.LongPolling=4]="LongPolling"}(P||(P={})),function(e){e[e.Text=1]="Text",e[e.Binary=2]="Binary"}(x||(x={}));var D=function(){function e(){this.isAborted=!1,this.onabort=null}return e.prototype.abort=function(){this.isAborted||(this.isAborted=!0,this.onabort&&this.onabort())},Object.defineProperty(e.prototype,"signal",{get:function(){return this},enumerable:!0,configurable:!0}),Object.defineProperty(e.prototype,"aborted",{get:function(){return this.isAborted},enumerable:!0,configurable:!0}),e}(),M=Object.assign||function(e){for(var t,n=1,r=arguments.length;n<r;n++)for(var o in t=arguments[n])Object.prototype.hasOwnProperty.call(t,o)&&(e[o]=t[o]);return e},j=function(e,t,n,r){return new(n||(n=Promise))((function(o,i){function a(e){try{c(r.next(e))}catch(e){i(e)}}function s(e){try{c(r.throw(e))}catch(e){i(e)}}function c(e){e.done?o(e.value):new n((function(t){t(e.value)})).then(a,s)}c((r=r.apply(e,t||[])).next())}))},A=function(e,t){var n,r,o,i,a={label:0,sent:function(){if(1&o[0])throw o[1];return o[1]},trys:[],ops:[]};return i={next:s(0),throw:s(1),return:s(2)},"function"==typeof Symbol&&(i[Symbol.iterator]=function(){return this}),i;function s(i){return function(s){return function(i){if(n)throw new TypeError("Generator is already executing.");for(;a;)try{if(n=1,r&&(o=2&i[0]?r.return:i[0]?r.throw||((o=r.return)&&o.call(r),0):r.next)&&!(o=o.call(r,i[1])).done)return o;switch(r=0,o&&(i=[2&i[0],o.value]),i[0]){case 0:case 1:o=i;break;case 4:return a.label++,{value:i[1],done:!1};case 5:a.label++,r=i[1],i=[0];continue;case 7:i=a.ops.pop(),a.trys.pop();continue;default:if(!(o=a.trys,(o=o.length>0&&o[o.length-1])||6!==i[0]&&2!==i[0])){a=0;continue}if(3===i[0]&&(!o||i[1]>o[0]&&i[1]<o[3])){a.label=i[1];break}if(6===i[0]&&a.label<o[1]){a.label=o[1],o=i;break}if(o&&a.label<o[2]){a.label=o[2],a.ops.push(i);break}o[2]&&a.ops.pop(),a.trys.pop();continue}i=t.call(e,a)}catch(e){i=[6,e],r=0}finally{n=o=0}if(5&i[0])throw i[1];return{value:i[0]?i[1]:void 0,done:!0}}([i,s])}}},B=function(){function e(e,t,n,r,o,i){this.httpClient=e,this.accessTokenFactory=t,this.logger=n,this.pollAbort=new D,this.logMessageContent=r,this.withCredentials=o,this.headers=i,this.running=!1,this.onreceive=null,this.onclose=null}return Object.defineProperty(e.prototype,"pollAborted",{get:function(){return this.pollAbort.aborted},enumerable:!0,configurable:!0}),e.prototype.connect=function(e,t){return j(this,void 0,void 0,(function(){var n,r,o,a,s,c,u,l,p;return A(this,(function(d){switch(d.label){case 0:if(h.a.isRequired(e,"url"),h.a.isRequired(t,"transferFormat"),h.a.isIn(t,x,"transferFormat"),this.url=e,this.logger.log(f.a.Trace,"(LongPolling transport) Connecting."),t===x.Binary&&"undefined"!=typeof XMLHttpRequest&&"string"!=typeof(new XMLHttpRequest).responseType)throw new Error("Binary protocols over XmlHttpRequest not implementing advanced features are not supported.");return r=Object(h.h)(),o=r[0],a=r[1],s=M(((n={})[o]=a,n),this.headers),c={abortSignal:this.pollAbort.signal,headers:s,timeout:1e5,withCredentials:this.withCredentials},t===x.Binary&&(c.responseType="arraybuffer"),[4,this.getAccessToken()];case 1:return u=d.sent(),this.updateHeaderToken(c,u),l=e+"&_="+Date.now(),this.logger.log(f.a.Trace,"(LongPolling transport) polling: "+l+"."),[4,this.httpClient.get(l,c)];case 2:return 200!==(p=d.sent()).statusCode?(this.logger.log(f.a.Error,"(LongPolling transport) Unexpected response code: "+p.statusCode+"."),this.closeError=new i(p.statusText||"",p.statusCode),this.running=!1):this.running=!0,this.receiving=this.poll(this.url,c),[2]}}))}))},e.prototype.getAccessToken=function(){return j(this,void 0,void 0,(function(){return A(this,(function(e){switch(e.label){case 0:return this.accessTokenFactory?[4,this.accessTokenFactory()]:[3,2];case 1:return[2,e.sent()];case 2:return[2,null]}}))}))},e.prototype.updateHeaderToken=function(e,t){e.headers||(e.headers={}),t?e.headers.Authorization="Bearer "+t:e.headers.Authorization&&delete e.headers.Authorization},e.prototype.poll=function(e,t){return j(this,void 0,void 0,(function(){var n,r,o,s;return A(this,(function(c){switch(c.label){case 0:c.trys.push([0,,8,9]),c.label=1;case 1:return this.running?[4,this.getAccessToken()]:[3,7];case 2:n=c.sent(),this.updateHeaderToken(t,n),c.label=3;case 3:return c.trys.push([3,5,,6]),r=e+"&_="+Date.now(),this.logger.log(f.a.Trace,"(LongPolling transport) polling: "+r+"."),[4,this.httpClient.get(r,t)];case 4:return 204===(o=c.sent()).statusCode?(this.logger.log(f.a.Information,"(LongPolling transport) Poll terminated by server."),this.running=!1):200!==o.statusCode?(this.logger.log(f.a.Error,"(LongPolling transport) Unexpected response code: "+o.statusCode+"."),this.closeError=new i(o.statusText||"",o.statusCode),this.running=!1):o.content?(this.logger.log(f.a.Trace,"(LongPolling transport) data received. 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o=require;n=o("ws"),r=o("eventsource")}h.c.isNode||"undefined"==typeof WebSocket||t.WebSocket?h.c.isNode&&!t.WebSocket&&n&&(t.WebSocket=n):t.WebSocket=WebSocket,h.c.isNode||"undefined"==typeof EventSource||t.EventSource?h.c.isNode&&!t.EventSource&&void 0!==r&&(t.EventSource=r):t.EventSource=EventSource,this.httpClient=t.httpClient||new S(this.logger),this.connectionState="Disconnected",this.connectionStarted=!1,this.options=t,this.onreceive=null,this.onclose=null}return e.prototype.start=function(e){return K(this,void 0,void 0,(function(){var t;return V(this,(function(n){switch(n.label){case 0:return e=e||x.Binary,h.a.isIn(e,x,"transferFormat"),this.logger.log(f.a.Debug,"Starting connection with transfer format '"+x[e]+"'."),"Disconnected"!==this.connectionState?[2,Promise.reject(new Error("Cannot start an HttpConnection that is not in the 'Disconnected' state."))]:(this.connectionState="Connecting",this.startInternalPromise=this.startInternal(e),[4,this.startInternalPromise]);case 1:return n.sent(),"Disconnecting"!==this.connectionState?[3,3]:(t="Failed to start the HttpConnection before stop() was called.",this.logger.log(f.a.Error,t),[4,this.stopPromise]);case 2:return n.sent(),[2,Promise.reject(new Error(t))];case 3:if("Connected"!==this.connectionState)return t="HttpConnection.startInternal completed gracefully but didn't enter the connection into the connected state!",this.logger.log(f.a.Error,t),[2,Promise.reject(new Error(t))];n.label=4;case 4:return this.connectionStarted=!0,[2]}}))}))},e.prototype.send=function(e){return"Connected"!==this.connectionState?Promise.reject(new Error("Cannot send data if the connection is not in the 'Connected' State.")):(this.sendQueue||(this.sendQueue=new G(this.transport)),this.sendQueue.send(e))},e.prototype.stop=function(e){return K(this,void 0,void 0,(function(){var t=this;return V(this,(function(n){switch(n.label){case 0:return"Disconnected"===this.connectionState?(this.logger.log(f.a.Debug,"Call to 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t=n.sent(),this.logger.log(f.a.Error,"HttpConnection.transport.stop() threw error '"+t+"'."),this.stopConnection(),[3,8];case 8:return this.transport=void 0,[3,10];case 9:this.logger.log(f.a.Debug,"HttpConnection.transport is undefined in HttpConnection.stop() because start() failed."),this.stopConnection(),n.label=10;case 10:return[2]}}))}))},e.prototype.startInternal=function(e){return K(this,void 0,void 0,(function(){var t,n,r,o,i,a;return V(this,(function(s){switch(s.label){case 0:t=this.baseUrl,this.accessTokenFactory=this.options.accessTokenFactory,s.label=1;case 1:return s.trys.push([1,12,,13]),this.options.skipNegotiation?this.options.transport!==P.WebSockets?[3,3]:(this.transport=this.constructTransport(P.WebSockets),[4,this.startTransport(t,e)]):[3,5];case 2:return s.sent(),[3,4];case 3:throw new Error("Negotiation can only be skipped when using the WebSocket transport directly.");case 4:return[3,11];case 5:n=null,r=0,o=function(){var e;return 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