title: How to use Variable Inspector in Google colab?
body: <p>How can I inspect variables within a Google's Colab notebook? I have tried adding the extension provided by this discussion (<a href="https://stackoverflow.com/questions/37718907/variable-explorer-in-jupyter-notebook/41338184">Variable Explorer in Jupyter Notebook</a>) to access the variable explorer.
  Although it has installed successfully, I was not able to use the extension. Is there any other way to do this?</p>