@abc.abstractmethod<EOL><INDENT>def get_assessment_authoring_proxy_manager(self):<DEDENT>
return<EOL>
Gets an ``AssessmentAuthoringProxyManager``.

        :return: an ``AssessmentAuthoringProxyManager``
        :rtype: ``osid.assessment.authoring.AssessmentAuthoringProxyManager``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_assessment_authoring() is false``

        *compliance: optional -- This method must be implemented if
        ``supports_assessment_authoring()`` is true.*