code: def reconstruct_interval(experiment_id):
      
      start, end = map(lambda x: udatetime.utcfromtimestamp(x / 1000.0), map(float, experiment_id.split("-")))
      from ..time_interval import TimeInterval
      return TimeInterval(start, end)
docs: Reverse the construct_experiment_id operation
      :param experiment_id: The experiment id
      :return: time interval