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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.
Thanks for helping.
Strange behaviour, I copied all test values which I printed as you suggested and try locally, all seems good. But when I try running it here with same code, it says -Error: arrays first differed at element [##]; expected: #### but was: []####
Error: arrays first differed at element [17]; expected:<[b]wnryvzvogpwq> but was:<[]wnryvzvogpwq>
what could be the test values and what may the meaning of this error?