code: def post(self, amount, other_account, description, self_memo="", other_memo="", datetime=None):
          
  
          #Note: debits are always positive, credits are always negative.  They should be negated before displaying
          #(expense and liability?) accounts
          tx = self._new_transaction()
  
          if datetime:
              tx.t_stamp = datetime
          #else now()
  
          tx.description = description
          tx.save()
  
          a1 = self._make_ae(self._DEBIT_IN_DB() * amount, self_memo, tx)
          a1.save()
          a2 = other_account._make_ae(-self._DEBIT_IN_DB() * amount, other_memo, tx)
          a2.save()
  
          return (a1, a2)
docs: Post a transaction of 'amount' against this account and the negative amount against 'other_account'.
  
          This will show as a debit or credit against this account when amount > 0 or amount < 0 respectively.