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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.
sorry, could you explain....?
Thanks!
Last line in the kata description
In Javascript and Coffeescript, where Unicode support is built in by default, it's expected to be supported as a best practice. Python does not use Unicode by default. For that reason, it's cited in the description.