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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.
author here. the description states "... but NOT
23:21:19", showing that the sequence must not be decreasing. It might have been confusing however, so I've altered the description. How's this?There's always a 'but' somewhere. :)
Changed to tuples everywhere. Tuples are more suited for pairs of elements that don't have vocation to be mutated. If one needs something mutable, it's easy to copy the data to some other data structure.
Python tests seem to be OK, and problem is most probably with your solution.
Please see if troubleshooting guide has anything helpful.