message: add a e2e test for keras lstm fusion.
diff: @@ -380,6 +380,8 @@ def compare_models_v2(tflite_model,
  tf_results = [tf_results[list(tf_results.keys())[0]]]
  else:
  tf_results = [tf_results[tflite_label] for tflite_label in tflite_labels]
  + else:
  + tf_results = [tf_results]
  for tf_result, tflite_result in zip(tf_results, tflite_results):
  np.testing.assert_almost_equal(tf_result, tflite_result, tolerance)
  