@abc.abstractmethod<EOL><INDENT>def currencies_to_strings(self, amounts):<DEDENT>
return<EOL>
Gets a string representation of a list of currency amounts including the currency symbols indicated by the currency type.

        :param amounts: an array of amounts
        :type amounts: ``osid.financials.Currency[]``
        :return: the display strings
        :rtype: ``string``
        :raise: ``InvalidArgument`` -- ``amount.get_currency_type() != get_currency_type()``
        :raise: ``NullArgument`` -- ``amounts`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure

        *compliance: mandatory -- This method must be implemented.*