Applescript - Photoshop CC

HI

How to delete a group in Photoshop CC without deleting the contain of this group ?

I understand the Reference class is Layer set for a group.

How to do, using applescript ?

Thanks for your help

regards

Christophe

tell application "Adobe Photoshop CC 2017"

  activate

  set typeOfLayer to get properties of every layer of current document

  tell current document

  delete layer 1 -- it should be the layer group

  end tell

end tell