@abc.abstractmethod<EOL><INDENT>def get_id(self):<DEDENT>
return<EOL>
Gets an identifier for this service implementation.

        The identifier is unique among services but multiple
        instantiations of the same service use the same ``Id``. This
        identifier is the same identifier used in managing OSID
        installations.

        :return: the ``Id``
        :rtype: ``osid.id.Id``


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