The class MovingCharges(Scene) doesn't work

[GeoKylin]

When I follow your tutorial, the class MovingCharges(Scene) doesn't work. Maybe something has been changed in manim project. So the following three lines need to be changed

1. manim_tutorial/manim_tutorial_P37.py

   Line 493 in 37efeb9

   self.always_continually_update = True

2. manim_tutorial/manim_tutorial_P37.py

   Line 503 in 37efeb9

   def continual_update(self, *args, **kwargs):

3. manim_tutorial/manim_tutorial_P37.py

   Line 505 in 37efeb9

   dt = self.frame_duration

as

self.always_update_mobjects = True

def update_mobjects(self, *args, **kwargs):

dt = 1 / self.camera.frame_rate