class CommunityMatchExprEvaluator implements CommunityMatchExprVisitor<Boolean, Community> {

  @Override
  public @Nonnull Boolean visitAllExtendedCommunities(
      AllExtendedCommunities allExtendedCommunities, Community arg) {
    return arg instanceof ExtendedCommunity;
  }

  public  CommunityMatchExprEvaluator(CommunityContext ctx);

}