code: def test_login_anonymous():
      with mock.patch.dict(
          "os.environ", WANDB_API_KEY="ANONYMOOSE" * 4
      ):
          wandb.login(anonymous="must")
          assert wandb.api.api_key == "ANONYMOOSE" * 4
  
imports: import os
  import platform
  import queue
  import sys
  import tempfile
  import threading
  import time
  from unittest import mock
  import pytest
  import wandb
label_desc: Use image node_id 9 for calling a global function with example usage: test_login_anonymous() without return types