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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.
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This is extremely readable and there's no variable litter anywhere. Well done!
We obviously think alike because I literally came up with the exact same solution. I would consider this more elegant than a one-line solution for the sake of both readability and future maintainability.