code: def add_id_memo(self, memo_id):
          
          memo_id = memo.IdMemo(memo_id)
          return self.add_memo(memo_id)
docs: Set the memo for the transaction to a new :class:`IdMemo
          <stellar_base.memo.IdMemo>`.
  
          :param int memo_id: A 64 bit unsigned integer to set as the memo.
          :return: This builder instance.