@utilities.arguments_not_none<EOL><INDENT>def get_calendar_types_for_time_type(self, time_type):<DEDENT>
raise errors.Unimplemented()<EOL>
Gets the list of calendar types supported for a given time type where they are both used in a ``DateTime``.

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