code: def get_historical_data(symbols, start=None, end=None, **kwargs):
      
      start, end = _sanitize_dates(start, end)
      return HistoricalReader(symbols, start=start, end=end, **kwargs).fetch()
docs: Function to obtain historical date for a symbol or list of
      symbols. Return an instance of HistoricalReader
  
      Parameters
      ----------
      symbols: str or list
          A symbol or list of symbols
      start: datetime.datetime, default None
          Beginning of desired date range
      end: datetime.datetime, default None
          End of required date range
      kwargs:
          Additional Request Parameters (see base class)
  
      Returns
      -------
      list or DataFrame
          Historical stock prices over date range, start to end