code: def test_add_label(manifest):
      """Test that we add labels to pod specs correctly."""
      add_label_to_pods(manifest, "test_label", "test_value")
      assert manifest["spec"]["template"]["metadata"]["labels"] == {
          "app": "wandb",
          "test_label": "test_value",
      }
  
imports: import asyncio
  import base64
  import json
  from typing import Any
  from unittest.mock import MagicMock
  import pytest
  import wandb
  from kubernetes_asyncio.client import ApiException
  from wandb.sdk.launch._project_spec import LaunchProject
  from wandb.sdk.launch.errors import LaunchError
  from wandb.sdk.launch.runner.kubernetes_monitor import CustomResource, LaunchKubernetesMonitor, _is_container_creating, _log_err_task_callback, _state_from_conditions, _state_from_replicated_status
  from wandb.sdk.launch.runner.kubernetes_runner import KubernetesRunner, KubernetesSubmittedRun, add_entrypoint_args_overrides, add_label_to_pods, add_wandb_env, maybe_create_imagepull_secret
label_desc: Use image node_id 4 for calling a global function with example usage: test_add_label(manifest) without return types