What does the deformation_table do?

[KyungdaePark]

Actually, I can’t figure out what the deformation_table.pth and deformation_accum file or the deformation_table tensor does in this code.
The only reference I found is in the tb_writer.add_scalar function:
deformation_table.sum() / scene.gaussians.get_xyz.shape[0]

If I remove this, will this code still works properly?

Thank you.