src/vs/workbench/api/node/extHostTunnelService.ts/ExtHostTunnelService/constructor
class ExtHostTunnelService:	constructor(
		@IExtHostRpcService extHostRpc: IExtHostRpcService,
		@IExtHostInitDataService initData: IExtHostInitDataService,
		@ILogService private readonly logService: ILogService
	) {
		super();
		this._proxy = extHostRpc.getProxy(MainContext.MainThreadTunnelService);
		if (isLinux && initData.remote.isRemote && initData.remote.authority) {
			this._proxy.$setRemoteTunnelService(process.pid);
		}
	}