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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.
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what 'empty object' ? which language ?
Not a kata issue. Wait to see if your stats update later and open an issue here: https://github.com/codewars/codewars.com/issues if not.
Please check this; and do not raise
Issues
so lightly in the future. An issue is a provable bug in the kata and has to include enough details for us to replicate and fix it ;-)