Fix documentation

There seem to have been a shift in the files that we include in the docs and now the [latest version](https://pynsee.readthedocs.io/en/latest/?badge=latest) has incorrect code snippets

Start with the latest documentation at the linked Read the Docs page and compare its code snippets with the current Python package files. Trace which files are included in the documentation and identify where the snippets became outdated. Done means the latest documentation includes the correct snippets for the current package.

Written by the indexing model from the issue text.