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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.
I believe the terms for the practices used in the solution are List Comprehension and List Slicing.
I'm pretty new to python and would like to better understand the best practices for this solution.