docs: def get_console_logger():
      """ just for kkconst demos """
      global __console_logger
      if __console_logger:
          return __console_logger
  
      logger = logging.getLogger("kkconst")
      logger.setLevel(logging.DEBUG)
  
      ch = logging.StreamHandler(sys.stdout)
      ch.setLevel(logging.DEBUG)
      formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
      ch.setFormatter(formatter)
      logger.addHandler(ch)
  
      __console_logger = logger
  
      return logger