code: def test_update_from_s3(mock_client) -> None:
      mock_object = mock.Mock()
      mock_object.return_value.get.return_value.read.return_value = (
          json.dumps(
              {
                  "state": "failing",
                  "team": "core",
                  "github_issue_number": "1234",
              }
          ).encode("utf-8")
      )
      mock_client.return_value.get_object = mock_object
      test = _stub_test({"team": "ci"})
      test.update_from_s3()
      assert test.get_state() == TestState.FAILING
      assert test.get_oncall() == "ci"
      assert test["github_issue_number"] == "1234"
  
imports: import json
  import sys
  import os
  import platform
  from unittest import mock
  import boto3
  import pytest
  from unittest.mock import patch
  from ray_release.bazel import bazel_runfile
  from ray_release.configs.global_config import init_global_config, get_global_config
  from ray_release.test import Test, TestResult, TestState, _convert_env_list_to_dict, DATAPLANE_ECR_REPO, DATAPLANE_ECR_ML_REPO
label_desc: Use image node_id 11 for calling a global function with example usage: test_update_from_s3(mock_client) without return types