private void processComplexStructures(@NotNull PsiElement element){
    JavaSimilarityComplexExpressionFeaturesExtractor complexExpressionFeaturesExtractor =
      new JavaSimilarityComplexExpressionFeaturesExtractor(myUsage, element);

    complexExpressionFeaturesExtractor
      .getFeatures()
      .getBag()
      .forEach((String token, Integer count) -> IntStream.range(0, count).forEach(i -> myUsageSimilarityFeaturesRecorder.addFeature(token)));
  }
private void processComplexStructures(@NotNull PsiElement element)