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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 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)