code: def test_get_same_s3_client(self):
      client_a = S3Config().get_s3_client()
      client_b = S3Config().get_s3_client()
  
      self.assertEqual(client_a, client_b)
  
imports: import unittest
  from gokart.s3_config import S3Config
label_desc: Use image node_id 1 for calling the TestS3Config obj's underlying member method code with example usage: obj.test_get_same_s3_client() without return types