@Override
  public ProgressIndicator findMoreItems(@NotNull Map<? extends SearchEverywhereContributor<?>, Collection<SearchEverywhereFoundElementInfo>> alreadyFound,
                                         @NotNull Map<? extends SearchEverywhereContributor<?>, Integer> contributorsAndLimits,
                                         @NotNull String pattern) {
    Function<ProgressIndicator, ResultsAccumulator> accumulatorSupplier = indicator ->
      new ResultsAccumulator(alreadyFound, contributorsAndLimits, myEqualityProvider, myListener, myNotificationExecutor, indicator);

    return performSearch(contributorsAndLimits.keySet(), pattern, accumulatorSupplier);
  }
@Override
  public ProgressIndicator findMoreItems(@NotNull Map<? extends SearchEverywhereContributor<?>, Collection<SearchEverywhereFoundElementInfo>> alreadyFound,
                                         @NotNull Map<? extends SearchEverywhereContributor<?>, Integer> contributorsAndLimits,
                                         @NotNull String pattern)