code: def get_default_temp_root_dir(self):
      return _DATABRICKS_DEFAULT_TMP_ROOT_DIR
  
file_path: ray/python/ray/util/spark/databricks_hook.py
imports: import os
  from .start_hook_base import RayOnSparkStartHook
  from .utils import get_spark_session
  import logging
  import threading
  import time
label_desc: Use image node_id 1 for calling the DefaultDatabricksRayOnSparkStartHook obj's underlying member method code with example usage: obj.get_default_temp_root_dir() and returns: _DATABRICKS_DEFAULT_TMP_ROOT_DIR