class_docstr: Checks that a few pre-trained Dodeca models give the correct results.
docstr: Test ConvAI2.
docstr_tok: ["Test","ConvAI2","."]
code: def test_convai2(self):
      """
      Test ConvAI2.
      """
      valid, _ = testing_utils.eval_model(
          CONVAI2_OPTIONS, skip_test=True
      )
      self.assertAlmostEqual(valid["ppl"], 9.382, places=1)
      self.assertAlmostEqual(valid["f1"], 0.202, places=2)
  
imports: import unittest
  import parlai.utils.testing
label_desc: Use image node_id 2 for calling the TestDodecaModel obj's underlying member method code with example usage: obj.test_convai2() without return types