docstr: get the SSM parameter value associated with the given parameter name
docstr_tok: ["get","the","SSM","parameter","value","associated","with","the","given","parameter","name"]
code: def _get_ssm_param(self, parameter_name: str) -> str:
      """
      get the SSM parameter value associated with the given parameter name
      """
      response = self.ssm_client.get_parameter(Name=parameter_name)
      logger.info(
          "Successfully fetch ssm parameter: {}".format(parameter_name)
      )
      res = response.get("Parameter", {})
      cwa_parameter = res.get("Value", {})
      return cwa_parameter
  
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 14 for calling the CloudwatchHelper obj's underlying member method code with example usage: obj._get_ssm_param(parameter_name) and returns: cwa_parameter