code: def _test_is_output_row_view_impl(
      self, view: llmfn_output_row.LLMFnOutputRowView
  ) -> None:
      self.assertEqual("result", view.result_key())
      self.assertEqual("none", view.result_value())
  
file_path: generative-ai-python/tests/notebook/lib/test_llmfn_output_row.py
imports: from __future__ import annotations
  from typing import Any, Mapping
  from absl.testing import absltest
  from google.generativeai.notebook.lib import llmfn_output_row
label_desc: Use image node_id 3 for calling the LLMFnOutputRowTest obj's underlying member method code with example usage: obj._test_is_output_row_view_impl(view) without return types