def add_speedometer(self):
    speedometer = Speedometer()
    speedometer.next_to(self.y_axis_label_mob, RIGHT, LARGE_BUFF)
    speedometer.to_edge(UP)
    self.play(DrawBorderThenFill(speedometer, lag_ratio=0.5, rate_func=linear))
    self.speedometer = speedometer
def add_speedometer(self):
    speedometer = Speedometer()
    speedometer.next_to(self.y_axis_label_mob, RIGHT, LARGE_BUFF)
    speedometer.to_edge(UP)
    self.play(DrawBorderThenFill(speedometer, lag_ratio=0.5, rate_func=linear))
    self.speedometer = speedometer