def _add_backcompat_properties(self, request, memo):
        """While deepcopying, we also need to add the private backcompat attrs.

        :param HttpRequest request: The request to copy from
        :param dict memo: The memo dict used by deepcopy
        """
        request._multipart_mixed_info = copy.deepcopy(  # pylint: disable=protected-access
            self._multipart_mixed_info, memo
        )
While deepcopying, we also need to add the private backcompat attrs.

        :param HttpRequest request: The request to copy from
        :param dict memo: The memo dict used by deepcopy
        
Solutions/CyberArkAudit/Data Connectors/.python_packages/lib/site-packages/azure/core/rest/_helpers.py