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

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

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