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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.
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"set() method is used to convert any of the iterable to sequence of iterable elements with distinct elements, commonly called Set."
Meaning, a set is the same basic group of characters as the original, except it excludes duplicates and it is not in order.
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