/** @since Available in iOS 7.0 and later. */
 public SKReceiptRefreshRequestOptions setRevoked(boolean revoked) {
   data.put(IsRevokedKey(), NSNumber.valueOf(revoked));
   return this;
 }
 /** @since Available in iOS 7.0 and later. */
 public SKReceiptRefreshRequestOptions setVolumePurchase(boolean volumePurchase) {
   data.put(IsVolumePurchaseKey(), NSNumber.valueOf(volumePurchase));
   return this;
 }
 /** @since Available in iOS 7.0 and later. */
 public SKReceiptRefreshRequestOptions setExpired(boolean expired) {
   data.put(IsExpiredKey(), NSNumber.valueOf(expired));
   return this;
 }