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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.
Maybe a second example in the description showing that would help.
Not a kata issue, remove 1 and 3. And the same question was answered two posts below yours.
I think this report has not enough details to fix the tests.