Method setdefault

django/contrib/sessions/backends/base.py:92–97

(self, key, value)

        return (await self._aget_session()).pop(key, *args)

    def setdefault(self, key, value):
        if key in self._session:
            return self._session[key]
        else:
            self[key] = value
            return value

    async def asetdefault(self, key, value):
        session = await self._aget_session()