code: def _init_file_handler():
      file_handler = RotatingFileHandler(
          filename=_LOG_PATH, maxBytes=_MAX_BYTES
      )
      file_handler.setFormatter(CustomFormatter())
  
      return file_handler
  
file_path: labml/app/server/labml_app/logger/logger.py
imports: import logging
  from logging import StreamHandler
  from logging.handlers import RotatingFileHandler
  from labml_app.settings import IS_LOCAL_SETUP
label_desc: Use image node_id 2 for calling a global function with example usage: _init_file_handler() and returns: file_handler