code: func NewUnixClient(addr string) *Client {
  	return &Client{
  		Addr: addr,
  		Dial: unixDial,
  
  		// There is little sense in compressing rpc data passed
  		// over local unix sockets.
  		DisableCompression: true,
  
  		// Sacrifice the number of Write() calls to the smallest
  		// possible latency, since it has higher priority in local IPC.
  		FlushDelay: -1,
  	}
  }
docs: // NewUnixClient creates a client connecting over unix socket
  // to the server listening to the given addr.
  //
  // The returned client must be started after optional settings' adjustment.
  //
  // The corresponding server must be created with NewUnixServer().