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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.
Go translation added. Please approve.
I am not sure what is missing in my solution. It says you have passed all the tests but says Errors: 1 and Failed: 1 and has no detail about it.