Gets and sets the property Format. 
            
            The format of thumbnails, if any. Valid values are  CopyC# and
CopyC# and jpg
 CopyC#.
CopyC#.
            
            png
You specify whether you want Elastic Transcoder to create thumbnails when you create a job.
 Declaration Syntax
 Declaration Syntax| C# | 
public string Format { get; set; }