code: func (d *Daemon) Command(args ...string) icmd.Cmd {
  	return icmd.Command(d.dockerBinary, d.PrependHostArg(args)...)
  }
docs: // Command creates a docker CLI command against this daemon, to be executed later.
  // Example: d.Command("version") creates a command to run "docker -H unix://path/to/unix.sock version"