Want to know where the demo example files are

[WSWZ]

Hi everyone, I am new to pybullet.
I am using pybullet to simulate a soft body and pick it up.
I saw this video: https://www.youtube.com/watch?v=k2e0_MSnu_Q
So, I would like to know where I can get the demo files for the two examples(as the images shown blew) in the first 40 seconds of the video.

Thanks so much,
Shaopeng