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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.
Duplicate taken from your list of completed katas.
In python the function should return a tuple, not a list.
"
[] --> [0,0]
" this doesn't make sense.max_min([])
should raise an exception.