class_docstr: Tune driver
class_docstr_tok: ["Tune","driver"]
code: def get_default_remote_dir(name):
      from zoo.ray import RayContext
      from zoo.orca.automl.search.utils import process
  
      ray_ctx = RayContext.get()
      if ray_ctx.is_local:
          return None
      else:
          default_remote_dir = f"hdfs:///tmp/{name}"
          process(command=f"hadoop fs -mkdir -p {default_remote_dir}")
          return default_remote_dir
  
imports: import ray
  from ray import tune
  import os
  from zoo.orca.automl.search.base import SearchEngine, TrialOutput, GoodError
  from zoo.orca.automl.search.parameters import DEFAULT_LOGGER_NAME, DEFAULT_METRIC_NAME
  from zoo.orca.automl.search.ray_tune.utils import convert_bayes_configs
  from zoo.orca.automl.search.utils import get_ckpt_hdfs, put_ckpt_hdfs
  from zoo.orca.automl.search import TensorboardLogger
  from ray.tune import Stopper
  from zoo.orca.automl.model.abstract import ModelBuilder
label_desc: Use image node_id 2 for calling the RayTuneSearchEngine obj's underlying member method code with example usage: obj.get_default_remote_dir(name) and returns: None, default_remote_dir