type error

```

Request Method: | GET
-- | --
http://localhost:8000/api/ingredients/singleform
1.11
TypeError
to_python() missing 1 required positional argument: 'value'
/home/web_dev/exclude/.virtualenvs/krishnacook/src/django_remote_forms/utils.py in resolve_promise, line 21
/home/web_dev/exclude/.virtualenvs/krishnacook/bin/python
3.6.0


```