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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.
The explanation doesn't mention that the object properties have to be mutable.
I used object.create and had the last test fail because I didn't set the attributes to be writable.
It should explicitly mention that your object should support 'foo.name = "bar";'