code: def get_store(self, config_name=None):
      store = ArtifactStoreTest.get_store(self, "test_config.yaml")
      self.assertTrue(isinstance(store, StorageHandler))
      return store
  
imports: import unittest
  import yaml
  import uuid
  import os
  import time
  import tempfile
  import shutil
  import requests
  import subprocess
  import boto3
  from studio import model
  from studio.auth import remove_all_keys
  from studio.artifacts.artifact import Artifact
  from studio.gcloud_artifact_store import GCloudArtifactStore
  from studio.storage.storage_handler import StorageHandler
  from studio.extra_util import has_aws_credentials
  from env_detect import on_gcp, on_aws
label_desc: Use image node_id 1 for calling the S3ArtifactStoreTest obj's underlying member method code with example usage: obj.get_store(config_name) and returns: store