.fbx exported from meshcapade.me doesn't include shape parameters

[Jingwen-genies]

Hello,

I'm currently exploring the parameters within the .fbx file exported from meshcapade.me and noticed the absence of shape parameters; only 'exp' and 'pose' are visible. My understanding is that 'exp' refers to facial expression parameters, and 'pose' represents a flattened vector from the 23x3x3 rotation matrices. Could you confirm if this is accurate? Additionally, could you provide more details on these parameters and guide me on how to obtain the shape parameters (betas) for the avatar created on your platform?

Thank you!