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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.
How come this works if it's not even executing the method?
Even though the Object.freeze(MrFreeze) seems more direct, I actually like this approach more because of its expressiveness. A matter of taste, I guess.