How to pass fields from logging.conf file ?

```
format=[%(asctime)s.%(msecs)d] [%(levelname)s] [%(process)d: %(thread)d] [%(filename)s: %(funcName)s: %(lineno)d] %(message)s
datefmt=%Y-%m-%d %H:%M:%S
class=logging.Formatter
```
Previous log formatting was as above how to add these fields from a gunicorn `logging.conf` file ?