Travis Vilac

**Is your feature request related to a problem? Please describe.** We are running JupyterLab 3.2.8 and cannot use `nbcelltests` because of an extension installation error related to `jupyterlab_celltests`. Error message:...

**Describe the bug** While using the extension and creating a new file within an S3 bucket, the file cannot be saved. An error is given: ```pt File Save Error for...