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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.
Sorry, I didn't see your message before. Yes, your approach is the good one. So a problem in your code only.
what approach do you use right now, globally? (with a spoiler flag)