class_docstr: Customized logger for Qlib.
class_docstr_tok: ["Customized","logger","for","Qlib","."]
code: def logger(self):
      logger = logging.getLogger(self.module_name)
      logger.setLevel(self.__level)
      return logger
  
imports: import logging
  from typing import Optional, Text, Dict, Any
  import re
  from logging import config
  from time import time
  from contextlib import contextmanager
  from .config import C
label_desc: Use image node_id 2 for calling the QlibLogger obj's underlying member method code with example usage: obj.logger() and returns: logger