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

    @functools.wraps(wrapped)
    def check_exists(name, *args, **kwargs):
        if (not exists(name)):
            raise CommandExecutionError("Container    '{0}'    does    not    exist".format(name))
        return wrapped(name, *args, **salt.utils.args.clean_kwargs(**kwargs))
    return check_exists

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

def _ensure_exists(wrapped):