/**
  * The disk image format.
  *
  * @param format The disk image format.
  * @return Returns a reference to this object so that method calls can be chained together.
  * @see DiskImageFormat
  */
 public DiskImageDetail withFormat(DiskImageFormat format) {
   setFormat(format);
   return this;
 }
 /**
  * The disk image format.
  *
  * @param format The disk image format.
  * @return Returns a reference to this object so that method calls can be chained together.
  * @see DiskImageFormat
  */
 public DiskImageDetail withFormat(String format) {
   setFormat(format);
   return this;
 }