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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.
Separating values using a comma, creates a tuple in which the first value is the first index of the tuple ("found the needle at position") and the second value is the second index of the tuple (3). You need to concatenate them together as a string.