def _proxy(self):
        """
        Generate an instance context for the instance, the context is capable of
        performing various actions.  All instance actions are proxied to the context

        :returns: SyncListPermissionContext for this SyncListPermissionInstance
        :rtype: twilio.rest.sync.v1.service.sync_list.sync_list_permission.SyncListPermissionContext
        """
        if self._context is None:
            self._context = SyncListPermissionContext(
                self._version,
                service_sid=self._solution['service_sid'],
                list_sid=self._solution['list_sid'],
                identity=self._solution['identity'],
            )
        return self._context
Generate an instance context for the instance, the context is capable of
        performing various actions.  All instance actions are proxied to the context

        :returns: SyncListPermissionContext for this SyncListPermissionInstance
        :rtype: twilio.rest.sync.v1.service.sync_list.sync_list_permission.SyncListPermissionContext