Sub GetThumbnail(path As String, format As String, size As String)
Dim job As HttpJob
job.Initialize("getthumbnail",Me)
job.Tag = path
job.PostString(mApiV2urlContent&"files/get_thumbnail","")
job.GetRequest.SetHeader("Authorization", "Bearer "&mAccessToken)
job.GetRequest.SetHeader("Dropbox-API-Arg", $"{"path":"${path}","format":"${format}","size":"${size}"}"$)
'job.GetRequest.SetContentEncoding("text/plain")
job.GetRequest.RemoveHeaders("Content-Type")
End Sub