Handling of Get-NotebookContent conversion failures

[SQLvariant]

It would be great if Get-NotebookContent could be a little more graceful when it runs into an error converting the JSON of a .ipynb file.

For example, this command brings back an error when it tries to process an empty file that just happens to have an .ipynb file extension.

dir -Filter *.ipynb | 
Get-Notebook -Path $_.FullName | 
Group KernelName

Instead of an error, a simple warning message might be better?