What kind of model can be used instead of the default Azure Kinect Body Tracker?

Question

Hi

I find that in k4abt_tracker_configuration_t , the default model used in Auzre Kinect human body tracking can be replaced with the one specified in the 'model_path' . Since we would like to test other algorithms using Azure DK, my questions are:

First, what requirements should the model be fulfilled in order to be used instead?

Second, what is the default model used in Azure human body tracking?

Thank you very much!