class_docstr: A dummy model used for testing interpreter compatibility.
class_docstr_tok: ["A","dummy","model","used","for","testing","interpreter","compatibility","."]
code: def output_spec(self) -> lit_types.Spec:
      return self._output_spec
  
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
  from lit_nlp.components import tcav
  import numpy
label_desc: Use image node_id 2 for calling the VariableOutputSpecModel obj's underlying member method code with example usage: obj.output_spec() and returns: self