code: def _get_s3_client(self) -> luigi.contrib.s3.S3Client:
      return luigi.contrib.s3.S3Client(
          aws_access_key_id=os.environ.get(self.aws_access_key_id_name),
          aws_secret_access_key=os.environ.get(
              self.aws_secret_access_key_name
          ),
      )
  
imports: import os
  import luigi
  import luigi.contrib.s3
label_desc: Use image node_id 2 for calling the S3Config obj's underlying member method code with example usage: obj._get_s3_client() and returns: luigi