How to import math utils for omni.isaac.dynamic_control._dynamic_control.Transform?

I am trying to use the “inverse” overloaded function with Transform object. On this page it says it’s possible
https://docs.omniverse.nvidia.com/py/isaacsim/source/extensions/omni.isaac.utils/docs/index.html

Args:

arg0 (omni.isaac.dynamic_control._dynamic_control.Transform): Transform

Returns:

omni.isaac.dynamic_control._dynamic_control.Transform: The inverse Inverse Transform

But I cannot import or use it, I don’t understand how to do this. Can anyone please help me?