class GraphicMixin:
    def draw(self):
        print("Drawing the graphic")

class ColorMixin:
    def set_color(self, color):
        self.color = color
        print(f"Setting color to {color}")

class ColoredGraphic(ColorMixin, GraphicMixin):
    pass

# 使用 ColoredGraphic 類
colored_graphic = ColoredGraphic()
colored_graphic.draw()         # 呼叫 GraphicMixin 的方法
colored_graphic.set_color("red")  # 呼叫 ColorMixin 的方法