code: def predict(self, inputs, **kw):
      return None
  
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 shap_explainer
  from lit_nlp.lib import testing_utils
label_desc: Use image node_id 3 for calling the _EmptyTestModel obj's underlying member method code with example usage: obj.predict(inputs) and returns: None