code: def _get_cur_node_config_hash(self, config_type: str) -> str:
      hash_key_value = "-".join(
          [CLOUDWATCH_CONFIG_HASH_TAG_BASE, config_type]
      )
      try:
          response = self.ec2_client.describe_instances(
              InstanceIds=[self.node_id]
          )
          reservations = response["Reservations"]
          message = "More than 1 response received from describing current node"
          assert len(reservations) == 1, message
          instances = reservations[0]["Instances"]
          assert len(reservations) == 1, message
          tags = instances[0]["Tags"]
          hash_value = self._get_default_empty_config_file_hash()
          for tag in tags:
              if tag["Key"] == hash_key_value:
                  logger.info(
                      "Successfully get cloudwatch {} hash tag value from "
                      "node {}".format(config_type, self.node_id)
                  )
                  hash_value = tag["Value"]
          return hash_value
      except botocore.exceptions.ClientError as e:
          logger.warning(
              "{} Error caught when getting hash tag {} tag".format(
                  e.response["Error"], hash_key_value
              )
          )
  
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 31 for calling the CloudwatchHelper obj's underlying member method code with example usage: obj._get_cur_node_config_hash(config_type) and returns: hash_value