docs: public NullnessStore getNullnessInfoBeforeNewContext(
        TreePath path, VisitorState state, Handler handler) {
      NullnessStore store = dataFlow.resultBefore(path, state.context, nullnessPropagation);
      if (store == null) {
        return NullnessStore.empty();
      }
      return store.filterAccessPaths(
          (ap) -> {
            if (ap.getElements().size() == 0) {
              AccessPath.Root root = ap.getRoot();
              if (!root.isReceiver()) {
                Element e = root.getVarElement();
                return e.getKind().equals(ElementKind.PARAMETER)
                    || e.getKind().equals(ElementKind.LOCAL_VARIABLE);
              }
            }
  
            return handler.includeApInfoInSavedContext(ap, state);
          }