@abc.abstractmethod<EOL><INDENT>def set_sequestered(self, sequestered):<DEDENT>
pass<EOL>
Sets the sequestered flag.

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

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