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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.
lol
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
That's not what this solution does. Did you try it? It passes the tests. If you were correct, wouldn't it fail the tests?
Why don't you try this solution and find out?