Update mongoengine/django/sessions.py

added the "get_decoded" method to the MongoSession class

mongoengine/django/sessions.py

@@ -35,6 +35,9 @@ class MongoSession(Document):
             'db_alias': MONGOENGINE_SESSION_DB_ALIAS,
             'allow_inheritance': False}
             
+    def get_decoded(self):
+        return SessionStore().decode(self.session_data)
+
 
 class SessionStore(SessionBase):
     """A MongoEngine-based session store for Django.