code: def get_instrument_list(self):
      logger.info("get coingecko crypto symbols......")
      symbols = get_cg_crypto_symbols()
      logger.info(f"get {len(symbols)} symbols.")
      return symbols
  
imports: import abc
  import sys
  import datetime
  from abc import ABC
  from pathlib import Path
  import fire
  import pandas
  from loguru import logger
  from dateutil.tz import tzlocal
  from data_collector.base import BaseCollector, BaseNormalize, BaseRun
  from data_collector.utils import deco_retry
  from pycoingecko import CoinGeckoAPI
  from time import mktime
  from datetime import datetime
  import time
label_desc: Use image node_id 1 for calling the CryptoCollector1d obj's underlying member method code with example usage: obj.get_instrument_list() and returns: symbols