code: def dump(self):
      self._get_all_date()
      self._dump_calendars()
      self._dump_instruments()
      self._dump_features()
  
imports: import abc
  import shutil
  import traceback
  from pathlib import Path
  from typing import Iterable, List, Union
  from functools import partial
  from concurrent.futures import ThreadPoolExecutor, as_completed, ProcessPoolExecutor
  import fire
  import numpy
  import pandas
  from tqdm import tqdm
  from loguru import logger
  from qlib.utils import fname_to_code, code_to_fname
label_desc: Use image node_id 5 for calling the DumpDataAll obj's underlying member method code with example usage: obj.dump() without return types