Your session crashed for an unknown reason
when I run the following cell in Google Colab:
from keras import backend as K
if
Just a side note: sometimes you may want to reinstall an litle older version of the related module (see from the error log). It works for me in a case.
Google Colab is crashing because you are trying to Run Code related to GPU with Runtime as CPU.
The execution is successful if you change the Runtime as GPU. Steps for the same are mentioned below:
Runtime -> Change Runtime -> GPU (Select from dropdown).
Please find the Working code in Github Gist.