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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.
your code is not right because you are expected to write a function, instead of a string
You mean how this website works? How to do a kata in general?
Or do you mean this kata specifically?
What is your question?