[Issue]: Local search notebook example rendering is broken

[rhamnett]

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Describe the issue

The documentation page at https://microsoft.github.io/graphrag/examples_notebooks/local_search/ is broken.

Presumably the cells are dynamically processed in the notebook to generate the documentation. Cells 17 and 21 error out.

I was looking for examples of "question generation"

eg of broken cell

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[21], line 5
      1 question_history = [
      2     "Tell me about Agent Mercer",
      3     "What happens in Dulce military base?",
      4 ]
----> 5 candidate_questions = await question_generator.agenerate(
      6     question_history=question_history, context_data=None, question_count=5
      7 )
      8 print(candidate_questions.response)

File ~/work/graphrag/graphrag/graphrag/query/question_gen/local_gen.py:74, in LocalQuestionGen.agenerate(self, question_history, context_data, question_count, **kwargs)
     70     conversation_history = ConversationHistory.from_list(history)
     72 if context_data is None:
     73     # generate context data based on the question history
---> 74     context_data, context_records = self.context_builder.build_context(
     75         query=question_text,
     76         conversation_history=conversation_history,
     77         **kwargs,
     78         **self.context_builder_params,
     79     )  # type: ignore
     80 else:
     81     context_records = {"context_data": context_data}

TypeError: cannot unpack non-iterable ContextBuilderResult object

Steps to reproduce

No response

GraphRAG Config Used

# Paste your config here

Logs and screenshots

No response

Additional Information

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