code: def test_workflow_manager_simple(workflow_start_regular):
      from ray.workflow.exceptions import WorkflowNotFoundError
  
      assert [] == workflow.list_all()
      with pytest.raises(WorkflowNotFoundError):
          workflow.get_status("X")
  
imports: import pytest
  import ray
  from ray import workflow
  from filelock import FileLock
label_desc: Use image node_id 1 for calling a global function with example usage: test_workflow_manager_simple(workflow_start_regular) without return types