code: func NewMsgReject(command string, code RejectCode, reason string) *MsgReject {
  	return &MsgReject{
  		Cmd:    command,
  		Code:   code,
  		Reason: reason,
  	}
  }
docs: // NewMsgReject returns a new bitcoin reject message that conforms to the
  // Message interface.  See MsgReject for details.