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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'm having a hard time deciphering pack and unpack in this context, could you try to explain it?? Thanks! Great job by the way. As someone new to programming, this code was helpful and easier to follow.