Fix Syntax Error in Function

I have a Python script that processes data, but a syntax error inside one of the function definitions is blocking execution. I need someone to:

• locate and correct the offending line(s)
• make sure the function runs without raising further syntax issues
• give me a brief note on what was wrong and how you fixed it

The codebase is small, so this should be a straightforward task for anyone comfortable with Python. Please deliver the corrected .py file and the short explanation, and I’ll test it right away.