code: def test_unset_bool():
      """Test that UNSET is falsy."""
      assert not UNSET
  
file_path: pennylane/tests/data/base/test_typing_util.py
imports: import typing
  import pytest
  import pennylane
  from pennylane.data.base.typing_util import UNSET, get_type, get_type_str, resolve_special_type
  from pennylane.qchem import Molecule
label_desc: Use image node_id 3 for calling a global function with example usage: test_unset_bool() without return types