code: def _get_region(self, config: Dict):
      result = config.get("region_name", None)
      if result is None:
          result = config.get("region", None)
      return result
  
imports: import calendar
  import os
  from urllib.parse import urlparse
  from boto3.s3.transfer import TransferConfig
  from boto3.session import Session
  import botocore
  from botocore.client import Config
  from botocore.handlers import set_list_objects_encoding_type_url
  from typing import Dict
  import re
  from studio.util import logs
  from studio.util import util
  from studio.credentials.credentials import Credentials, AWS_TYPE
  from studio.storage.storage_handler import StorageHandler
  from studio.storage.storage_type import StorageType
  from studio.storage.storage_setup import get_storage_verbose_level
label_desc: Use image node_id 2 for calling the S3StorageHandler obj's underlying member method code with example usage: obj._get_region(config) and returns: result