public static ParameterInfoHandler @NotNull [] getHandlers(Project project, final Language @NotNull ... languages) {
    Set<ParameterInfoHandler> handlers = new LinkedHashSet<>();
    DumbService dumbService = DumbService.getInstance(project);
    for (final Language language : languages) {
      handlers.addAll(dumbService.filterByDumbAwareness(LanguageParameterInfo.INSTANCE.allForLanguage(language)));
    }
    return handlers.isEmpty() ? EMPTY_HANDLERS : handlers.toArray(new ParameterInfoHandler[0]);
  }
public static ParameterInfoHandler @NotNull [] getHandlers(Project project, final Language @NotNull ... languages)