@abc.abstractmethod<EOL><INDENT>def set_description(self, description):<DEDENT>
pass<EOL>
Sets a description.

        :param description: the new description
        :type description: ``string``
        :raise: ``InvalidArgument`` -- ``description`` is invalid
        :raise: ``NoAccess`` -- ``description`` cannot be modified
        :raise: ``NullArgument`` -- ``description`` is ``null``

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