code: def _setup_cwa(self) -> bool:
      cwa_installed = self._check_cwa_installed_ec2_tag()
      if cwa_installed == "False":
          res_cwa_installed = self._ensure_cwa_installed_ssm(
              self.node_id
          )
          return res_cwa_installed
      else:
          return True
  
imports: import copy
  import hashlib
  import json
  import logging
  import os
  import time
  from enum import Enum
  from typing import Any, Callable, Dict, List, Union
  import botocore
  from ray.autoscaler._private.aws.utils import client_cache, resource_cache
  from ray.autoscaler.tags import NODE_KIND_HEAD, TAG_RAY_CLUSTER_NAME, TAG_RAY_NODE_KIND
label_desc: Use image node_id 29 for calling the CloudwatchHelper obj's underlying member method code with example usage: obj._setup_cwa() and returns: res_cwa_installed, True