code: def test_is_compatible(
      self, model: lit_model.Model, expected_compat: bool
  ):
      compat = self.hotflip.is_compatible(
          model, lit_dataset.NoneDataset({"test": model})
      )
      self.assertEqual(expected_compat, compat)
  
imports: from typing import Optional
  from absl.testing import absltest
  from absl.testing import parameterized
  from lit_nlp.api import dataset
  from lit_nlp.api import model
  from lit_nlp.api import types
  from lit_nlp.components import hotflip
  from lit_nlp.lib import utils
  import numpy
label_desc: Use image node_id 2 for calling the HotflipTest obj's underlying member method code with example usage: obj.test_is_compatible(model, expected_compat) without return types