Reading gscript file with Colab

Question

Imagine I got some gscript file sitting in my Google Drive in some Test folder. I can see it from Colab like so:

from google.colab import drive
drive.mount('/content/drive')
import os
files = os.listdir("drive/My Drive/Test") 
files
['Test_app.gscript']

However, I tried some options to read Test_app.gscript, but all of them have given me OSError: [Errno 95] Operation not supported: 'drive/My Drive/Test/Test_app.gscript'

Is there a way to read this slippery gscript doc?