human
Here's a good function header given the following:
I wrote the below code

    class ContextualZipFile(zipfile.ZipFile, ):
        def __enter__(self):
            return self
        def __exit__(self, type, value, traceback):
            self.close
    return (zipfile.ZipFile if hasattr(zipfile.ZipFile, '__exit__') else ContextualZipFile)

What's a good function header?
assistant
#Here's a good function header.

def get_zip_class():