@Override
  public @NotNull List<PyAssignmentStatement> findAttributes() {
    /*
     * TODO: This method if insanely heavy since it unstubs foreign files.
     * Need to save stubs and use them somehow.
     *
     */
    return CachedValuesManager.getManager(getProject()).getCachedValue(this, ATTRIBUTES_KEY, () -> {
      final List<PyAssignmentStatement> result = findAttributesStatic(this);
      return CachedValueProvider.Result.create(result, PsiModificationTracker.MODIFICATION_COUNT);
    }, false);
  }
@Override
  public @NotNull List<PyAssignmentStatement> findAttributes()