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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've searched for the switch statement in Python and found that it does not exist.
Instead, it's called the match operator, which has been available since Python 3.10.
This solution is very clear using the match operator, and it also uses string interpolation and collection destructuring/unpacking.
I've trained again on this kata to type and feel for myself the functioning of this operator.
Also, you could violate the pure function approach, manipulating the input parameter.
Nice way to evaluate the arr is not empty or None.
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