Make casing of method names consistent

[t1m0thyj]

Before V1 LTS, we should ensure that methods have consistent casing. I believe snake case is recommended for Python.

There are a few methods that will need to change: registerLogger -> register_logger, openAll -> open_all, etc.

Also we could investigate setting up a lint rule that enforces method name casing so we don't have to do it manually 😋

[github-actions]

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