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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.
Yes, my code was wrong. I have solved the issues. Thank You.
Test cases in python needs to be correct. around 6 or more testcase have wrong solution or question. like "IloveYou" the expected output is "i_love_you". As 'l' is not capital the expected output would be incorrect.