code: def get_data_handler_config(
      start_time="2008-01-01",
      end_time="2020-08-01",
      fit_start_time="<dataset.kwargs.segments.train.0>",
      fit_end_time="<dataset.kwargs.segments.train.1>",
      instruments=CSI300_MARKET,
  ):
      return {
          "start_time": start_time,
          "end_time": end_time,
          "fit_start_time": fit_start_time,
          "fit_end_time": fit_end_time,
          "instruments": instruments,
      }
  
label_desc: Use image node_id 1 for calling a global function with example usage: get_data_handler_config(start_time, end_time, fit_start_time, fit_end_time, instruments) and returns: dict