Method as_currency

test/ext/test_hybrid.py:2032–2037

(self, other_currency)

                return self.amount == other.as_currency(self.currency).amount

            def as_currency(self, other_currency):
                return Amount(
                    currency_lookup[(self.currency, other_currency)]
                    * self.amount,
                    other_currency,
                )

            def __clause_element__(self):
                # helper method for SQLAlchemy to interpret