docstr: calculate the config file sha1 hash
docstr_tok: ["calculate","the","config","file","sha1","hash"]
code: def _sha1_hash_file(self, config_type: str) -> str:
      """calculate the config file sha1 hash"""
      config = self.CLOUDWATCH_CONFIG_TYPE_TO_CONFIG_VARIABLE_REPLACE_FUNC.get(
          config_type
      )(
          config_type
      )
      value = json.dumps(config)
      sha1_res = self._sha1_hash_json(value)
      return sha1_res
  
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 16 for calling the CloudwatchHelper obj's underlying member method code with example usage: obj._sha1_hash_file(config_type) and returns: sha1_res