ament_pep257 support for user defined config file

I want to adjust some of the pep257 behavior in our project. In ros2 there seem to be some ignored styles configured here: https://github.com/ament/ament_lint/blob/rolling/ament_pep257/ament_pep257/main.py#L43

From the official pep257/pydocstyle documentaton, there should be an option to use an additional configuration file: https://pep257.readthedocs.io/en/1.0.0/usage.html#configuration-files

I tried placing these in my ros workspace but they do not seem to be recoginized. Is there a way to do this?