Which part of the library is the implementation of NEURAL PROBABILISTIC MOTOR PRIMITIVES FOR HUMANOID CONTROL?

Hi I am a student trying to understand this library and training inverse RL I want to do implement work similar to[ NEURAL PROBABILISTIC MOTOR PRIMITIVES FOR HUMANOID CONTROL](https://arxiv.org/pdf/1811.11711). Mentioned [here ](https://github.com/google-deepmind/dm_control/tree/main/dm_control/locomotion#publications) is that the the implementation was adapted yet I struggle to find it. Could you'll direct me where to mind the relevant source code for the implementation.

Thank you.