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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.
As i know there is no need to specify every element like this "age:age" if you are still using the same name. Only if you want to change a name of argument, like this "firstName:name"(Where "name" is argument and firstName will be name of the key in the future)