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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.
Your solution's a little hard to read given how bunched up everything is.
Some spaces in between chunks of code would improve things a lot.
This one is good practice for OOP