@abc.abstractmethod<EOL><INDENT>def set_enabled(self, enabled):<DEDENT>
pass<EOL>
Sets the administratively enabled flag.

        :param enabled: the new enabled flag
        :type enabled: ``boolean``
        :raise: ``InvalidArgument`` -- ``enabled`` is invalid
        :raise: ``NoAccess`` -- ``Metadata.isReadOnly()`` is ``true``

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