`complete_params = bool(conf)` would be confusing because if I set it to `"not-required"` it would still complete required params even though I intended it to be the opposite (this is an example).

```python
conf = settings.get('auto_complete...', None)
# Either:
complete = bool(conf)
# or:
complete = conf not in (False, None, "", 'none')
# Then:
complete_params = conf == 'required'
complete_all = conf == 'all'
```