old_contents: from typing import Any, List, Optional, Union
  
  import requests
  
  from globus_sdk import exc
  
  
  class GCSAPIError(exc.GlobusAPIError):
      """
      Error class for the GCS Manager API client
      """
  
      def __init__(self, r: requests.Response) -> None:
          self.detail_data_type: Optional[str] = None
          self.detail: Union[None, str, dict] = None
          super().__init__(r)
  
      def _get_args(self) -> List[Any]:
          args = super()._get_args()
          args.append(self.detail_data_type)
          # only add detail if it's a string (don't want to put a large object into
          # stacktraces)
          if isinstance(self.detail, str):
              args.append(self.detail)
          return args
  
      def _load_from_json(self, data: dict) -> None:
          super()._load_from_json(data)
          # detail can be a full document, so fetch, then look for a DATA_TYPE
          # and expose it as a top-level attribute for easy access
          self.detail = data.get("detail")
          if self.detail and "DATA_TYPE" in self.detail:
              self.detail_data_type = self.detail["DATA_TYPE"]
  
new_contents: from typing import Any, List, Optional, Union
  
  import requests
  
  from globus_sdk import exc
  
  
  class GCSAPIError(exc.GlobusAPIError):
      """
      Error class for the GCS Manager API client
      """
  
      def __init__(self, r: requests.Response) -> None:
          self.detail_data_type: Optional[str] = None
          self.detail: Union[None, str, dict] = None
          super().__init__(r)
  
      def _get_args(self) -> List[Any]:
          args = super()._get_args()
          args.append(self.detail_data_type)
          # only add detail if it's a string (don't want to put a large object into
          # stacktraces)
          if isinstance(self.detail, str):
              args.append(self.detail)
          return args
  
      def _load_from_json(self, data: dict) -> None:
          super()._load_from_json(data)
          # detail can be a full document, so fetch, then look for a DATA_TYPE
          # and expose it as a top-level attribute for easy access
          self.detail = data.get("detail")
          if isinstance(self.detail, dict) and "DATA_TYPE" in self.detail:
              self.detail_data_type = self.detail["DATA_TYPE"]
  
subject: Add a missing isinstance check to pacify pyright