Code is correct but it throws error when i submit the answer

Technical Discussions Python
#1

Code is correct but it throws error when i submit the answer. Please check the attached screenshot.

cloudxfunctionerror
cloudxfunctionerror1267×421 32.7 KB

#2

Hi,
The assessment engine is case-sensitive. Try providing the same return as asked in the instruction when the argument passed is not valid i.e., ‘invalid return’ instead of your custom return.

Hope this helps