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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 forgot the .join builtin. To use list comprehension was way good! I need to learn it.
You're not supposed to paste solutions here.
You're not supposed to paste solutions here.
Please don't post solutions in kata's Discourse. Use Solutions section to discuss it. Even there, use spoiler flag when appropiate.