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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.
I know it but i dont know the third argument
What a amazing standard library! (but it maybe slow)
? you can use better names for your variable.