code: def input_spec(self):
      return self.base.input_spec()
  
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 ModelWithoutCallableEmbeddingTable obj's underlying member method code with example usage: obj.input_spec() and returns: self