human
I wrote the below code

    def _validates(cls):
        validators[version] = cls
        if (u'id' in cls.META_SCHEMA):
            meta_schemas[cls.META_SCHEMA[u'id']] = cls
        return cls
    return _validates

What's a good function header?

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

def validates(version):