Loading collection data...
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.
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Actually, you may use just max(dc) instead of max(dc.keys()) - the results are the same
you may just use .tolist() but Python is about the preferable way :)