@utilities.arguments_not_none<EOL><INDENT>def get_currency_types_for_source(self, source_currency_type):<DEDENT>
raise errors.Unimplemented()<EOL>
Gets the list of target currency types for a given source currency type.

        arg:    source_currency_type (osid.type.Type): the type of the
                source currency
        return: (osid.type.TypeList) - the list of supported currency
                types
        raise:  NullArgument - ``source_currency_type`` is ``null``
        *compliance: mandatory -- This method must be implemented.*