diff --git a/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py b/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py index 019acffd15..3b75ab2524 100644 --- a/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py +++ b/libs/community/langchain_community/chat_models/baidu_qianfan_endpoint.py @@ -109,22 +109,195 @@ def _convert_dict_to_message(_dict: Mapping[str, Any]) -> AIMessage: class QianfanChatEndpoint(BaseChatModel): - """Baidu Qianfan chat models. + """Baidu Qianfan chat model integration. + + Setup: + Install ``qianfan`` and set environment variables ``QIANFAN_AK``, ``QIANFAN_SK``. + + .. code-block:: bash + + pip install qianfan + export QIANFAN_AK="your-api-key" + export QIANFAN_SK="your-secret_key" + + Key init args — completion params: + model: str + Name of Qianfan model to use. + temperature: Optional[float] + Sampling temperature. + endpoint: Optional[str] + Endpoint of the Qianfan LLM + top_p: Optional[float] + What probability mass to use. + + Key init args — client params: + timeout: Optional[int] + Timeout for requests. + api_key: Optional[str] + Qianfan API KEY. If not passed in will be read from env var QIANFAN_AK. + secret_key: Optional[str] + Qianfan SECRET KEY. If not passed in will be read from env var QIANFAN_SK. + + See full list of supported init args and their descriptions in the params section. + + Instantiate: + .. code-block:: python - To use, you should have the ``qianfan`` python package installed, and - the environment variable ``qianfan_ak`` and ``qianfan_sk`` set with your - API key and Secret Key. + from langchain_community.chat_models import QianfanChatEndpoint - ak, sk are required parameters - which you could get from https://cloud.baidu.com/product/wenxinworkshop + qianfan_chat = QianfanChatEndpoint( + model="ERNIE-3.5-8K", + temperature=0.2, + timeout=30, + # api_key="...", + # secret_key="...", + # top_p="...", + # other params... + ) + + Invoke: + .. code-block:: python + + messages = [ + ("system", "你是一名专业的翻译家，可以将用户的中文翻译为英文。"), + ("human", "我喜欢编程。"), + ] + qianfan_chat.invoke(message) - Example: .. code-block:: python - from langchain_community.chat_models import QianfanChatEndpoint - qianfan_chat = QianfanChatEndpoint(model="ERNIE-Bot", - endpoint="your_endpoint", qianfan_ak="your_ak", qianfan_sk="your_sk") - """ + AIMessage(content='I enjoy programming.', additional_kwargs={'finish_reason': 'normal', 'request_id': 'as-7848zeqn1c', 'object': 'chat.completion', 'search_info': []}, response_metadata={'token_usage': {'prompt_tokens': 16, 'completion_tokens': 4, 'total_tokens': 20}, 'model_name': 'ERNIE-3.5-8K', 'finish_reason': 'normal', 'id': 'as-7848zeqn1c', 'object': 'chat.completion', 'created': 1719153606, 'result': 'I enjoy programming.', 'is_truncated': False, 'need_clear_history': False, 'usage': {'prompt_tokens': 16, 'completion_tokens': 4, 'total_tokens': 20}}, id='run-4bca0c10-5043-456b-a5be-2f62a980f3f0-0') + + Stream: + .. code-block:: python + + for chunk in qianfan_chat.stream(messages): + print(chunk) + + .. code-block:: python + + content='I enjoy' response_metadata={'finish_reason': 'normal', 'request_id': 'as-yz0yz1w1rq', 'object': 'chat.completion', 'search_info': []} id='run-0fa9da50-003e-4a26-ba16-dbfe96249b8b' role='assistant' + content=' programming.' response_metadata={'finish_reason': 'normal', 'request_id': 'as-yz0yz1w1rq', 'object': 'chat.completion', 'search_info': []} id='run-0fa9da50-003e-4a26-ba16-dbfe96249b8b' role='assistant' + + .. code-block:: python + + full = next(stream) + for chunk in stream: + full += chunk + full + + .. code-block:: + + AIMessageChunk(content='I enjoy programming.', response_metadata={'finish_reason': 'normalnormal', 'request_id': 'as-p63cnn3ppnas-p63cnn3ppn', 'object': 'chat.completionchat.completion', 'search_info': []}, id='run-09a8cbbd-5ded-4529-981d-5bc9d1206404') + + Async: + .. code-block:: python + + await qianfan_chat.ainvoke(messages) + + # stream: + # async for chunk in qianfan_chat.astream(messages): + # print(chunk) + + # batch: + # await qianfan_chat.abatch([messages]) + + .. code-block:: python + + [AIMessage(content='I enjoy programming.', additional_kwargs={'finish_reason': 'normal', 'request_id': 'as-mpqa8qa1qb', 'object': 'chat.completion', 'search_info': []}, response_metadata={'token_usage': {'prompt_tokens': 16, 'completion_tokens': 4, 'total_tokens': 20}, 'model_name': 'ERNIE-3.5-8K', 'finish_reason': 'normal', 'id': 'as-mpqa8qa1qb', 'object': 'chat.completion', 'created': 1719155120, 'result': 'I enjoy programming.', 'is_truncated': False, 'need_clear_history': False, 'usage': {'prompt_tokens': 16, 'completion_tokens': 4, 'total_tokens': 20}}, id='run-443b2231-08f9-4725-b807-b77d0507ad44-0')] + + Tool calling: + .. code-block:: python + + from langchain_core.pydantic_v1 import BaseModel, Field + + + class GetWeather(BaseModel): + '''Get the current weather in a given location''' + + location: str = Field( + ..., description="The city and state, e.g. San Francisco, CA" + ) + + + class GetPopulation(BaseModel): + '''Get the current population in a given location''' + + location: str = Field( + ..., description="The city and state, e.g. San Francisco, CA" + ) + + chat_with_tools = qianfan_chat.bind_tools([GetWeather, GetPopulation]) + ai_msg = chat_with_tools.invoke( + "Which city is hotter today and which is bigger: LA or NY?" + ) + ai_msg.tool_calls + + .. code-block:: python + + [ + { + 'name': 'GetWeather', + 'args': {'location': 'Los Angeles, CA'}, + 'id': '533e5f63-a3dc-40f2-9d9c-22b1feee62e0' + } + ] + + Structured output: + .. code-block:: python + + from typing import Optional + + from langchain_core.pydantic_v1 import BaseModel, Field + + + class Joke(BaseModel): + '''Joke to tell user.''' + + setup: str = Field(description="The setup of the joke") + punchline: str = Field(description="The punchline to the joke") + rating: Optional[int] = Field(description="How funny the joke is, from 1 to 10") + + + structured_chat = qianfan_chat.with_structured_output(Joke) + structured_chat.invoke("Tell me a joke about cats") + + .. code-block:: python + + Joke( + setup='A cat is sitting in front of a mirror and sees another cat. What does the cat think?', + punchline="The cat doesn't think it's another cat, it thinks it's another mirror.", + rating=None + ) + + Response metadata + .. code-block:: python + + ai_msg = qianfan_chat.invoke(messages) + ai_msg.response_metadata + + .. code-block:: python + { + 'token_usage': { + 'prompt_tokens': 16, + 'completion_tokens': 4, + 'total_tokens': 20}, + 'model_name': 'ERNIE-3.5-8K', + 'finish_reason': 'normal', + 'id': 'as-qbzwtydqmi', + 'object': 'chat.completion', + 'created': 1719158153, + 'result': 'I enjoy programming.', + 'is_truncated': False, + 'need_clear_history': False, + 'usage': { + 'prompt_tokens': 16, + 'completion_tokens': 4, + 'total_tokens': 20 + } + } + + """ # noqa: E501 init_kwargs: Dict[str, Any] = Field(default_factory=dict) """init kwargs for qianfan client init, such as `query_per_second` which is