src/vs/workbench/services/extensions/common/rpcProtocol.ts/RPCProtocol/_receiveReply
class RPCProtocol:	private _receiveReply(msgLength: number, req: number, value: any): void {
		this._logger?.logIncoming(msgLength, req, RequestInitiator.LocalSide, `receiveReply:`, value);
		const callId = String(req);
		if (!this._pendingRPCReplies.hasOwnProperty(callId)) {
			return;
		}

		const pendingReply = this._pendingRPCReplies[callId];
		delete this._pendingRPCReplies[callId];

		pendingReply.resolveOk(value);
	}