code: func (rco RunContainerOptions) asDockerAttachToContainerOptions() dockertypes.ContainerAttachOptions {
  	return dockertypes.ContainerAttachOptions{
  		Stdin:  rco.Stdin != nil,
  		Stdout: rco.Stdout != nil,
  		Stderr: rco.Stderr != nil,
  		Stream: rco.Stdout != nil,
  	}
  }
docs: // asDockerAttachToContainerOptions converts a RunContainerOptions into a
  // ContainerAttachOptions understood by the docker client