code: def __init__(self, asset_map):
      self._asset_map = asset_map
  
file_path: zipline/tests/utils/daily_bar_writer.py
imports: from numpy import float64, uint32, int64
  from bcolz import ctable
  from zipline.data.bcolz_daily_bars import BcolzDailyBarWriter, OHLC, UINT32_MAX
label_desc: Use image node_id 1 to create a new DailyBarWriterFromDataFrames object from inherited base classes: BcolzDailyBarWriter with example: obj = DailyBarWriterFromDataFrames(asset_map)