code: def get_logger_dir():
      """
      Returns:
          The logger directory, or None if not set.
          The directory is used for general logging, tensorboard events, checkpoints, etc.
      """
      return LOG_DIR
  
file_path: tensorpack/tensorpack/utils/logger.py
imports: import logging
  import os
  import os.path
  import shutil
  import sys
  from datetime import datetime
  from six.moves import input
  from termcolor import colored
label_desc: Use image node_id 6 for calling a global function with example usage: get_logger_dir() and returns: LOG_DIR