docs: def plot_time_series(sdat, lovs):
      """Plot requested time series.
  
      Args:
          sdat (:class:`~stagpy.stagyydata.StagyyData`): a StagyyData instance.
          lovs (nested list of str): nested list of series names such as
              the one produced by :func:`stagpy.misc.list_of_vars`.
  
      Other Parameters:
          conf.time.tstart: the starting time.
          conf.time.tend: the ending time.
      """
      sovs = misc.set_of_vars(lovs)
      tseries = {}
      times = {}
      metas = {}
      for tvar in sovs:
          series, time, meta = get_time_series(
              sdat, tvar, conf.time.tstart, conf.time.tend)
          tseries[tvar] = series
          metas[tvar] = meta
          if time is not None:
              times[tvar] = time
      tseries['t'] = get_time_series(
          sdat, 't', conf.time.tstart, conf.time.tend)[0]
  
      _plot_time_list(sdat, lovs, tseries, metas, times)