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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 just noticed that the format: '[M, D, YYYY]' doesn't correspond with the kata nor the examples( [1, 2, 2000] for February 1st, 2000 or [22, 12, 1999] for December 22nd, 1999.) I think it would be: '[D, M, YYYY]' thank u in advance