Export FBX with preview mesh from anim sequence with python

Hello everyone,
I am trying to batch export my preview mesh from a bunch of anim sequence in python
I can’t seem to find a way to reproduce the Export Asset - Preview mesh manual export and when i use the export fbx function in the python api my mesh is not moving as it only gets animation on attributes (CTRL_expressions_*) like my animation sequence

When I trigger manually the Export Asset - Preview mesh it creates a new Anim Sequence with the suffix “_Preview_Mesh” and has the correct data to export

I looked at the C++ code it seems to be recording the previous anim sequence, it also works if I record manually my anim sequence into a new one, but I can’t find a function to reproduces this behaviour in python

If anyone has found a way to do this, I’d appreciate the help !!
Thanks for reading me!