Identify kernel in jupyter_notebook_config.py

Is it possible to identify the name/language/version of the kernel that is being loaded from within `jupyter_notebook_config.py` (or another location).

We have a Jupyterhub instance for a large number of users and are trying to get better information about which kernels are used most often.

My apologies If I have missed it in the docs.

Start by reviewing jupyter_notebook_config.py and the notebook kernel-management entry points to determine where kernel identity is available during loading. Establish whether the requested name, language, and version can be exposed from configuration, and confirm the expected behavior with maintainers before defining implementation or documentation work.

Written by the indexing model from the issue text.