* implementations.
   */
  @SuppressWarnings({
    "GoodTime", // should accept a java.time.Duration
    "CatchingUnchecked", // sneaky checked exception
    "Interruption", // We copy AbstractExecutorService.invokeAny. Maybe we shouldn't: b/227335009.
  })
  @J2ktIncompatible
  @GwtIncompatible
  @ParametricNullness
  static <T extends @Nullable Object> T invokeAnyImpl(