Saving visual observations as image files

Hello.
I’m making a ML Agent project that involves an agent trained with two visual observations.
What I am curious about is how to check the visible form of the visual observations that actually inputted to RL network.
I just want to make sure that the visual observation is being inputted as I intended.
For example, I want some methods such as saving the two visual observations that I’m inputing for network as image files.
As far as I have checked, it seems that this feature is not provided in Unity ML Agents Toolkit.
If there’s something I’ve missed, I would appreciate your help.
Thank you.