@abc.abstractmethod<EOL><INDENT>def set_group(self, group):<DEDENT>
pass<EOL>
Sets the resource as a group.

        :param group: ``true`` if this resource is a group, ``false`` otherwise
        :type group: ``boolean``
        :raise: ``InvalidArgument`` -- ``group`` is invalid
        :raise: ``NoAccess`` -- ``Metadata.isReadOnly()`` is ``true``

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