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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I think that bad indentation might be caused by copying code from text editor/IDE.
Thanks for the clarification on returns!
I've been trying to follow bbatsov ruby style guide, but whatever suits everyone best.
It's not bad practice because it increases readability.
The more pressing matter is the bad indentation.
It's the last line of the method, so no need to explicitly return a