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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.
Issue isn't descriptive enough
Which language?
This comment is hidden because it contains spoiler information about the solution
I guess, there are some random tests should be added.