human
I wrote the below code

    @wraps(func)
    def wrapper(*args, **kwargs):
        if (not _lib.Cryptography_HAS_NEXTPROTONEG):
            raise NotImplementedError('NPN    not    available.')
        return func(*args, **kwargs)
    return wrapper

What's a good function header?

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

def _requires_npn(func):