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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.
matches multiline strings. is not needed here, but when matching against user input it is good to remember it
What's the m flag for? It doesn't seem to be necessary for this to work…