docs: private void executeStrategy(
              Traversal.Admin<?, ?> traversal, GraphStep<?, ?> graphStep, TraversalFilterStep<Vertex> filterStep,
              String propertyKey, String label) {
  
          JanusPreviousPropertyStep newStep = new JanusPreviousPropertyStep(traversal, propertyKey, label);
          traversal.removeStep(filterStep);
          TraversalHelper.replaceStep(graphStep, newStep, traversal);
      }