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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.
I'm not entirely sure why you're doing that checking. You shouldn't need all those chars.
That being said, dunno if you need
\'and you don't have\\.Other than that, you'd probably need to tell us what lang you're in. If you're not totally sure this is where the error is, we'll also need to see more code.