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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.
Could you elaborate? Which property of the class
Humanis violated by its subclasses?That every human has a non-null father and mother is IMHO not a property of the class
Humanin this kata.