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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 the second swap moves it from 1 to 2 when it is said that the first one in the tuple is FROM and second one is TO? I really think there is a typo in this test . Thanks for the explanation.