Hi there!
Yes, this is totally doable, but I’m a bit busy today. If this is something that you need right away, here’s what you can do now:
1. Save a backup copy of your AEP file, just in case. (Save, followed by Save and Increment is perfect for this.)
2. Select the composition that you want the report for in the project panel.
3. Select File > Dependencies > Reduce Project. (This will eliminate everything in the project panel except for your selection and any items referenced by your selection.)
4. Run the script to get the list of assets, type, width, height, frame rate, and duration. Copy the list out of the dialog.
5. Undo the Reduce Project to get everything back.