text-classification

🚀 Feature Request

ENUMs for the catalyst-based conventions.
As an example, I will use scope.

Motivation

We have a lot of callbacks that used scope and maybe some other parameter that has only in catalyst-based meaning.
And every time we need to do something like that:

if isinstance(scope, str) and scope in [
            "on_batch_end",
            "on_batch_start",