code: def auth(self, username, password):
      jq.auth(username, password)
  
file_path: FinRL/finrl/meta/data_processors/processor_joinquant.py
imports: from __future__ import annotations
  import copy
  import os
  import jqdatasdk
  import numpy
  import pandas
  from func import calc_all_filenames
  from func import date2str
  from func import remove_all_files
label_desc: Use image node_id 2 for calling the JoinQuantEngineer obj's underlying member method code with example usage: obj.auth(username, password) without return types