docs: def _flatten_dicts(self, dicts):
          """Flatten a dict
  
          :param dicts: Flatten a dict
          :type dicts: list(dict)
          """
          d = dict()
          list_of_dicts = [d.get() for d in dicts or []]
          return {k: v for d in list_of_dicts for k, v in d.items()}