human
I wrote the below code

    def stringify_error(error):
        if (not isinstance(error, six.string_types)):
            return error.__name__
        return error
    if (not isinstance(error_type, tuple)):
        error_type = (error_type,)
    expected_errors = {stringify_error(error) for error in error_type}
    if (not handler.type):
        return False
    return handler.catch(expected_errors)

What's a good function header?

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

def error_of_type(handler, error_type):