/** @since Available in iOS 4.0 and later. */
 public NSData getVerbatimSampleDescription() {
   if (has(Keys.VerbatimSampleDescription())) {
     NSData val = get(Keys.VerbatimSampleDescription(), NSData.class);
     return val;
   }
   return null;
 }
 /** @since Available in iOS 4.0 and later. */
 public CMFormatDescriptionExtension setVerbatimSampleDescription(
     NSData verbatimSampleDescription) {
   set(Keys.VerbatimSampleDescription(), verbatimSampleDescription);
   return this;
 }