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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.
Why in
Readerwe have function but inWriterjust tuple?Where we shall get
Wvalue from?(W, A)This is about Scala.