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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.
it's not callback hell.
this is the best way to solve it ( also the less complicated one )
callbackhell
It is because it doesn't register the Capital Leters in "LOL"
you have to add AEOIU too