/**
  * Call {@link Fragment#setUserVisibleHint(boolean) setUserVisibleHint(boolean)} if running on an
  * appropriate version of the platform.
  */
 public static void setUserVisibleHint(Fragment f, boolean deferStart) {
   IMPL.setUserVisibleHint(f, deferStart);
 }
 /**
  * Call {@link Fragment#setMenuVisibility(boolean) Fragment.setMenuVisibility(boolean)} if running
  * on an appropriate version of the platform.
  */
 public static void setMenuVisibility(Fragment f, boolean visible) {
   IMPL.setMenuVisibility(f, visible);
 }