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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 freeRenderModel(self):
 """ Frees a previously returned render model It is safe to call this on a null ptr. """


        fn = self.function_table.freeRenderModel
        pRenderModel = RenderModel_t()
        fn(byref(pRenderModel))
        return pRenderModel