human
I wrote the below code

    if (not kwargs):
        raise ValueError('annotations    must    be    provided    as    keyword    arguments')
    def dec(f):
        if hasattr(f, '__annotations__'):
            for (k, v) in kwargs.items():
                f.__annotations__[k] = v
        else:
            f.__annotations__ = kwargs
        return f
    return dec

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

def annotate(**kwargs):