Read or set the volume slider on the track control panel

Do any scripting commands allow you to read or set the volume on the volume slider on the track control panel? The closest I could find in the scripting reference was OutputGain, but that’s a different volume control.

By “track control panel,” I mean the one immediately to the left of the track with the Mute, Solo, and Effects buttons at the top and the volume slider immediately below those buttons.

Context: I’ve written a script that exports all the clips in a track to separate ogg files. As part of this script, I’d like to validate that the track control panel’s volume slider is set to 0 so that it doesn’t affect the volume level of the clips I’m exporting.