Retrieve thumbnail through API

I was wondering if it's possible to retrieve the thumbnail through the API for sharex.

ShareX supports $ThumbnailURL on custom uploaders like

`  "ResponseType": "Text",
  "URL": "$json:data.img_url$",
  "ThumbnailURL": "$json:data.thumb_url$",`

Would it be possible to use an API function like the deletion one `  "DeletionURL": "$json:delete_url$" ` but for the thumbnail?