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.
Major issue - impossible to complete, due to submission timing out. Also, function returns a list of tuples, not a list of lists as it states in the description.