如何在manim中制作间距一致的虚线矩形？

from manim import *

class DashedRectangle(DashedVMobject):
    def __init__(self, height=2, width=4, dash_length=0.2, gap_length=0.2, **kwargs):
        super().__init__(
            rectangle=Rectangle(height=height, width=width, **kwargs),
            dash_length=dash_length,
            gap_length=gap_length
        )

class MyScene(Scene):
    def construct(self):
        dashed_rectangle = DashedRectangle()
        self.add(dashed_rectangle)
        self.wait()

manim my_scene.py MyScene -p