docs: def get_feature_order_constraints(container_dir):
      """
      Returns the feature order constraints dict defined in featuremodel/productline/feature_order.json
      :param container_dir: the container dir.
      :return: dict
      """
      import json
  
      file_path = os.path.join(container_dir, '_lib/featuremodel/productline/feature_order.json')
      with open(file_path, 'r') as f:
          ordering_constraints = json.loads(f.read())
  
      return ordering_constraints