code: def test_delete():
      model = Workspace(quiet=True, b=BIT_SIZE)
      assert "model" in locals()
      del model
      assert "model" not in locals()
  
imports: import os
  from pathlib import Path
  import vowpalwabbit
  from vowpalwabbit import Workspace
  import pytest
  import warnings
  import filecmp
label_desc: Use image node_id 2 for calling a global function with example usage: test_delete() without return types