code: def load_data(self):
          
          try:
              df = self.live_quote_arg_func(self.tickers)
              for index, ticker in enumerate(self.tickers):
                  ticker_info = df.loc[index]
                  self.ticker_dict[ticker].append(ticker_info['price'],
                                                  ticker_info['volume'],
                                                  ticker_info['amount'],
                                                  ticker_info['time'])
          except Exception:
              raise ValueError('Polling thread exception')
docs: Overwrite this for new source data structures