/usr/share/doc/python-certbot-nginx-doc/html/_sources/api/obj.txt is in python-certbot-nginx-doc 0.28.0-1~deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | :mod:`certbot_nginx.obj`
----------------------------
.. automodule:: certbot_nginx.obj
:members:
|