code: def test_parse_bad() -> None:
      ref = WandbReference.parse("not a url")
      assert ref is None
  
file_path: wandb/tests/pytest_tests/system_tests/test_launch/test_wandb_reference.py
imports: from wandb.sdk.launch.wandb_reference import WandbReference
label_desc: Use image node_id 1 for calling a global function with example usage: test_parse_bad() without return types