code: func (s *Stream) SetDeadline(t time.Time) error {
  	if err := s.SetReadDeadline(t); err != nil {
  		return err
  	}
  	if err := s.SetWriteDeadline(t); err != nil {
  		return err
  	}
  	return nil
  }
docs: // SetDeadline sets the read and write deadlines