It would be great if the ability to add custom providers was added

[alex-tomson]

Maybe some flag --custom-providers=path/to/file-with-custom-providers

I'm trying to use pganonymize with AirFlow PythonOperator, but it usage have some limitations. Multiprocessing cannot be used when pganonymize running in daemon process of Airflow. So I get UserWarning from multiprocessing about that and data is processing in synchronous way.

I can still run pganonymize from BashOperator, but, in this way I cannot define custom providers