Update backend/mongodb/operations/calls.py

backend/mongodb/operations/calls.py

@@ -7,7 +7,7 @@ from ..models.calls import UpdateCall, UserCall, UserCaptions
 def list_calls(collection, limit: int):
     try:
         calls = collection.find(limit = limit)
-        return calls
+        return list(calls)
     except:
         raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"No existing call records yet.")