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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.
It is an established form of expressions suitable for searching text in programming.
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That's not right. Nowhere in the description does it mention your alternative. However, the author has explicitly put
as a Kata tag.
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true, but it seems pretty straightfold