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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 asked GPT then he gives me an example about how to convert a set to an array, and correctly just like the answer above.
Yeah, you can, cuz set's constructor takes an iterable object and string is iterable