diff --git a/docs/source/developers/index.md b/docs/source/developers/index.md index dd79d4c05..12e714048 100644 --- a/docs/source/developers/index.md +++ b/docs/source/developers/index.md @@ -17,6 +17,76 @@ For more details about using `langchain.pydantic_v1` in an environment with Pydantic v2 installed, see the [LangChain documentation on Pydantic compatibility](https://python.langchain.com/docs/guides/pydantic_compatibility). +## Custom model providers + +You can define new providers using the LangChain framework API. Custom providers +inherit from both `jupyter-ai`'s `BaseProvider` and `langchain`'s [`LLM`][LLM]. +You can either import a pre-defined model from [LangChain LLM list][langchain_llms], +or define a [custom LLM][custom_llm]. +In the example below, we define a provider with two models using +a dummy `FakeListLLM` model, which returns responses from the `responses` +keyword argument. + +```python +# my_package/my_provider.py +from jupyter_ai_magics import BaseProvider +from langchain.llms import FakeListLLM + + +class MyProvider(BaseProvider, FakeListLLM): + id = "my_provider" + name = "My Provider" + model_id_key = "model" + models = [ + "model_a", + "model_b" + ] + def __init__(self, **kwargs): + model = kwargs.get("model_id") + kwargs["responses"] = ( + ["This is a response from model 'a'"] + if model == "model_a" else + ["This is a response from model 'b'"] + ) + super().__init__(**kwargs) +``` + + +If the new provider inherits from [`BaseChatModel`][BaseChatModel], it will be available +both in the chat UI and with magic commands. Otherwise, users can only use the new provider +with magic commands. + +To make the new provider available, you need to declare it as an [entry point](https://setuptools.pypa.io/en/latest/userguide/entry_point.html): + +```toml +# my_package/pyproject.toml +[project] +name = "my_package" +version = "0.0.1" + +[project.entry-points."jupyter_ai.model_providers"] +my-provider = "my_provider:MyProvider" +``` + +To test that the above minimal provider package works, install it with: + +```sh +# from `my_package` directory +pip install -e . +``` + +Then, restart JupyterLab. You should now see an info message in the log that mentions +your new provider's `id`: + +``` +[I 2023-10-29 13:56:16.915 AiExtension] Registered model provider `my_provider`. +``` + +[langchain_llms]: https://api.python.langchain.com/en/v0.0.339/api_reference.html#module-langchain.llms +[custom_llm]: https://python.langchain.com/docs/modules/model_io/models/llms/custom_llm +[LLM]: https://api.python.langchain.com/en/v0.0.339/llms/langchain.llms.base.LLM.html#langchain.llms.base.LLM +[BaseChatModel]: https://api.python.langchain.com/en/v0.0.339/chat_models/langchain.chat_models.base.BaseChatModel.html + ## Prompt templates Each provider can define **prompt templates** for each supported format. A prompt diff --git a/docs/source/users/index.md b/docs/source/users/index.md index ac72e4fe8..8864050cf 100644 --- a/docs/source/users/index.md +++ b/docs/source/users/index.md @@ -938,73 +938,3 @@ data: runtime: /Users/3coins/Library/Jupyter/runtime ``` - -## Custom model providers - -You can define new providers using the LangChain framework API. Custom providers -inherit from both `jupyter-ai`'s `BaseProvider` and `langchain`'s [`LLM`][LLM]. -You can either import a pre-defined model from [LangChain LLM list][langchain_llms], -or define a [custom LLM][custom_llm]. -In the example below, we define a provider with two models using -a dummy `FakeListLLM` model, which returns responses from the `responses` -keyword argument. - -```python -# my_package/my_provider.py -from jupyter_ai_magics import BaseProvider -from langchain.llms import FakeListLLM - - -class MyProvider(BaseProvider, FakeListLLM): - id = "my_provider" - name = "My Provider" - model_id_key = "model" - models = [ - "model_a", - "model_b" - ] - def __init__(self, **kwargs): - model = kwargs.get("model_id") - kwargs["responses"] = ( - ["This is a response from model 'a'"] - if model == "model_a" else - ["This is a response from model 'b'"] - ) - super().__init__(**kwargs) -``` - - -If the new provider inherits from [`BaseChatModel`][BaseChatModel], it will be available -both in the chat UI and with magic commands. Otherwise, users can only use the new provider -with magic commands. - -To make the new provider available, you need to declare it as an [entry point](https://setuptools.pypa.io/en/latest/userguide/entry_point.html): - -```toml -# my_package/pyproject.toml -[project] -name = "my_package" -version = "0.0.1" - -[project.entry-points."jupyter_ai.model_providers"] -my-provider = "my_provider:MyProvider" -``` - -To test that the above minimal provider package works, install it with: - -```sh -# from `my_package` directory -pip install -e . -``` - -Then, restart JupyterLab. You should now see an info message in the log that mentions -your new provider's `id`: - -``` -[I 2023-10-29 13:56:16.915 AiExtension] Registered model provider `my_provider`. -``` - -[langchain_llms]: https://api.python.langchain.com/en/v0.0.339/api_reference.html#module-langchain.llms -[custom_llm]: https://python.langchain.com/docs/modules/model_io/models/llms/custom_llm -[LLM]: https://api.python.langchain.com/en/v0.0.339/llms/langchain.llms.base.LLM.html#langchain.llms.base.LLM -[BaseChatModel]: https://api.python.langchain.com/en/v0.0.339/chat_models/langchain.chat_models.base.BaseChatModel.html