@utilities.arguments_not_none<EOL><INDENT>def set_schedule(self, schedule_id):<DEDENT>
raise errors.Unimplemented()<EOL>
Sets a schedule.

        arg:    schedule_id (osid.id.Id): the new schedule
        raise:  InvalidArgument - ``schedule_id`` is invalid
        raise:  NoAccess - ``Metadata.isReadOnly()`` is ``true``
        raise:  NullArgument - ``schedule_id`` is ``null``
        *compliance: mandatory -- This method must be implemented.*