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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.
Thanks for the feedback
No, the answer is not an empty string. Something went wrong at CW, the servers seems much slower than usual. Maybe you could give another try?
Please which language?
That makes for a really meaningful edit: done, thanks!