@utilities.remove_null_proxy_kwarg<EOL><INDENT>def get_authorization_lookup_session(self):<DEDENT>
if not self.supports_authorization_lookup():<EOL><INDENT>raise errors.Unimplemented()<EOL><DEDENT>return sessions.AuthorizationLookupSession(runtime=self._runtime)<EOL>
Gets the ``OsidSession`` associated with the authorization lookup service.

        return: (osid.authorization.AuthorizationLookupSession) - an
                ``AuthorizationLookupSession``
        raise:  OperationFailed - unable to complete request
        raise:  Unimplemented - ``supports_authorization_lookup()`` is
                ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_authorization_lookup()`` is ``true``.*