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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.
This is pretty simple as far as regex goes. By this argument, nobody should ever use ANY regex since it would be too hard to read.
It's quite readable
thanks for your advice, i will take it into consideration next time