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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.
Since Java has no raw strings you have to escape every backslash in your regex pattern. Not a kata issue. Not even a Java issue (apart from the fact that "no raw strings" might be an issue with the language itself)
Is this a kata issue?
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