The |ChartFormat| object providing access to the shape formatting
        properties of this data point, such as line and fill.

def format(self):
        """
        The |ChartFormat| object providing access to the shape formatting
        properties of this data point, such as line and fill.
        """
        dPt = self._ser.get_or_add_dPt_for_point(self._idx)
        return ChartFormat(dPt)