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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.
The description says explicitly how to handle that case, and what's the format of the output. Read it again carefully. Multiplying posts about the same topic is pointless and annoying.
Answer below no?
Actually it's in the description ;)