def fill_attr(self, a):
        self.fill_attr_apply({None:a})
A nicer interface for batch requests to the 
dataset/ETHPy150Open AnyMesh/anyMesh-Python/example/urwid/canvas.py/CompositeCanvas.fill_attr--crossover with--dataset/ETHPy150Open debrouwere/facebook-insights/facebookinsights/utils/api.py/GraphAPI.all