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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'm not quite sure how you class this as unreadable? What do you find confusing and/or unreadable about it?
This return statement is just confusing.
I guess you did this on purpose, because it is an easy example, but things like this make code unreadable.
Although this is an easy example, there are some specialists out there, that do such things over and over again in similar cases.