SAS and XSPEC command docstrings don't get parsed into Sphinx documentation

[DavidT3]

This seems likely to be because of the decorator function I use to allow the commands to be run through actual SAS or XSPEC in terminal. I'll have to go looking for a solution to this, because the SAS and XSPEC functions are key to the whole module, it wouldn't be good if they were undocumented.

[DavidT3]

This is a known behaviour of autodoc (sphinx-doc/sphinx#7650), as the decorator conceals the true signature of the decorated function from autodoc.

One way around this apparently is to use the functools.wraps decorator