code: def test_construction_invalid_style(self):
      with self.assertRaises(TraitError):
          widgets.Box(box_style="invalid")
  
file_path: catboost/contrib/python/ipywidgets/py3/ipywidgets/widgets/tests/test_widget_box.py
imports: from unittest import TestCase
  from traitlets import TraitError
  import ipywidgets
label_desc: Use image node_id 4 for calling the TestBox obj's underlying member method code with example usage: obj.test_construction_invalid_style() without return types