code: def test_binarizer_notfitted(self):
      warnings.filterwarnings("ignore")
      model = Binarizer()
      self.assertRaises(NotFittedError, convert, model, "torch")
  
file_path: hummingbird/tests/test_sklearn_notfitted.py
imports: import unittest
  import warnings
  from hummingbird.ml._utils import sklearn_installed
  from sklearn.exceptions import NotFittedError
  from hummingbird.ml import convert
label_desc: Use image node_id 1 for calling the TestSklearnNotfitted obj's underlying member method code with example usage: obj.test_binarizer_notfitted() without return types