[Hacktoberfest - Labs Members] Add Python Docstrings

[kevc528]

Django REST Live is an open source framework developed by Labs to add support for real-time subscriptions over websockets to Django REST Live. This is especially useful for OHQ!

It would be great for more Labs members to understand how REST Live works. The main goal for this task is to learn about the internals of REST Live. Be sure to think about what each function does in REST Live and when they are invoked.

Additionally, try to add some descriptive docstrings to methods in REST Live to make it easier for others to learn how REST Live works. For docstrings, I recommend using Google style docstrings, though any consistent style of docstring is fine.