Bug when running the deepseek example

[hhamud]

This is the errors I get when I run the deepseek example with local ollama embeddings

INFO:nano-graphrag:Writing graph with 1591 nodes, 2360 edges
Traceback (most recent call last):
  File "/Users/user/Documents/projects/sen-legal-rag/gem_nano.py", line 131, in <module>
    insert()
  File "/Users/user/Documents/projects/sen-legal-rag/gem_nano.py", line 124, in insert
    add_markdown_files_to_rag("./docs", rag)
  File "/Users/user/Documents/projects/sen-legal-rag/gem_nano.py", line 29, in add_markdown_files_to_rag
    rag.insert(f.read())
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/nano_graphrag/graphrag.py", line 207, in insert
    return loop.run_until_complete(self.ainsert(string_or_strings))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/.local/share/uv/python/cpython-3.12.7-macos-aarch64-none/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/nano_graphrag/graphrag.py", line 311, in ainsert
    await generate_community_report(
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/nano_graphrag/_op.py", line 650, in generate_community_report
    this_level_communities_reports = await asyncio.gather(
                                     ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/nano_graphrag/_op.py", line 625, in _form_single_community_report
    response = await use_llm_func(prompt, **llm_extra_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/nano_graphrag/_utils.py", line 177, in wait_func
    result = await func(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/gem_nano.py", line 53, in deepseepk_model_if_cache
    response = await openai_async_client.chat.completions.create(
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/resources/chat/completions.py", line 1720, in create
    return await self._post(
           ^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_base_client.py", line 1849, in post
    return await self.request(cast_to, opts, stream=stream, stream_cls=stream_cls)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_base_client.py", line 1543, in request
    return await self._request(
           ^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_base_client.py", line 1646, in _request
    return await self._process_response(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_base_client.py", line 1743, in _process_response
    return await api_response.parse()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_response.py", line 424, in parse
    parsed = self._parse(to=to)
             ^^^^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/openai/_response.py", line 259, in _parse
    data = response.json()
           ^^^^^^^^^^^^^^^
  File "/Users/user/Documents/projects/sen-legal-rag/.venv/lib/python3.12/site-packages/httpx/_models.py", line 766, in json
    return jsonlib.loads(self.content, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/.local/share/uv/python/cpython-3.12.7-macos-aarch64-none/lib/python3.12/json/__init__.py", line 346, in loads
    return _default_decoder.decode(s)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/.local/share/uv/python/cpython-3.12.7-macos-aarch64-none/lib/python3.12/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/.local/share/uv/python/cpython-3.12.7-macos-aarch64-none/lib/python3.12/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 30 column 1 (char 29)