@abc.abstractmethod<EOL><INDENT>def set_identifier_namespace(self, namespace):<DEDENT>
pass<EOL>
Seta the identifier namespace.

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

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