Want to work on issue #17329, need help to proceed.

HI everyone, I am Ankit, a final year computer engineering student. I wanted to work on the issue #17329. I am familiar with python. I will appreciate any guidance to solve this issue.

Regards,
Ankit Yadav.

The file in case is
https://github.com/ansible/ansible/blob/devel/lib/ansible/plugins/lookup/env.py

The issue here is that this plugin has worked this way for a long time
so changing the default behaviour is not recommended. Adding a new
parameter to raise an error on missing env var or return a specific
marker would be the recommended approach.