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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.
Hey
My answer show the correct result but still the first test won't recognize them as valid.
Could you PLEASE TAKE LOOK.
"Format" generally indicates serialization to a string. Truncating approximate numeric types seems contrived.