class_docstr: A dummy model imitating saved model semantics for testing init_spec().
code: def predict(self, *args, **kwargs) -> list[types.JsonDict]:
      return []
  
imports: 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
label_desc: Use image node_id 4 for calling the _SavedTestModel obj's underlying member method code with example usage: obj.predict() and returns: list