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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.
Yes, it's kind of thing like You came up with an idea, found the shortest solution and you add all the restrictions there must be to force people write the same code as you wrote.
That's how russian education system works. People don't think the same way...
What? Name functions how you want, it's not production