human
I wrote the below code

    def getter(self):
        return getattr(self._items[0], attr)
    def setter(self, value):
        for item in self:
            setattr(item, attr, value)
    return property(fget=getter, fset=setter, doc=doc)

What's a good function header?

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

def fullcascade(attr, doc=''):