Sets the fill type to solid, i.e. a solid color. Note that calling
        this method does not set a color or by itself cause the shape to
        appear with a solid color fill; rather it enables subsequent
        assignments to properties like fore_color to set the color.

def solid(self):
        """
        Sets the fill type to solid, i.e. a solid color. Note that calling
        this method does not set a color or by itself cause the shape to
        appear with a solid color fill; rather it enables subsequent
        assignments to properties like fore_color to set the color.
        """
        solidFill = self._xPr.get_or_change_to_solidFill()
        self._fill = _SolidFill(solidFill)