code: def configure_logging():
    
  
    # Define the top-level logger.
    htf_logger = logging.getLogger(LOGGER_PREFIX)
    htf_logger.propagate = False
    htf_logger.setLevel(logging.DEBUG)
  
    # By default, don't print any logs to the CLI.
    if CLI_LOGGING_VERBOSITY == 0:
      htf_logger.addHandler(logging.NullHandler())
      return
  
    if CLI_LOGGING_VERBOSITY == 1:
      logging_level = logging.INFO
    else:
      logging_level = logging.DEBUG
  
    # Configure a handler to print to the CLI.
    cli_handler = KillableThreadSafeStreamHandler(stream=sys.stdout)
    cli_handler.setFormatter(CliFormatter())
    cli_handler.setLevel(logging_level)
    cli_handler.addFilter(MAC_FILTER)
    htf_logger.addHandler(cli_handler)
  
    # Suppress CLI logging if the --quiet flag is used, or while CLI_QUIET is set
    # in the console_output module.
    cli_handler.addFilter(console_output.CliQuietFilter())
docs: One-time initialization of loggers. See module docstring for more info.