src/vs/workbench/api/common/extHostRpcService.ts/ExtHostRpcService/constructor
class ExtHostRpcService:	constructor(rpcProtocol: IRPCProtocol) {
		this.getProxy = rpcProtocol.getProxy.bind(rpcProtocol);
		this.set = rpcProtocol.set.bind(rpcProtocol);
		this.assertRegistered = rpcProtocol.assertRegistered.bind(rpcProtocol);
		this.drain = rpcProtocol.drain.bind(rpcProtocol);
	}