from __future__ import annotations
import warnings
from importlib import util
from typing import (
Any,
AsyncIterator,
Callable,
Dict,
Iterator,
List,
Literal,
Optional,
Sequence,
Tuple,
Type,
Union,
cast,
overload,
)
from langchain_core._api import beta
from langchain_core.language_models import (
BaseChatModel,
LanguageModelInput,
SimpleChatModel,
)
from langchain_core.language_models.chat_models import (
agenerate_from_stream,
generate_from_stream,
)
from langchain_core.messages import AnyMessage, BaseMessage
from langchain_core.runnables import Runnable, RunnableConfig
from langchain_core.runnables.schema import StreamEvent
from langchain_core.tools import BaseTool
from langchain_core.tracers import RunLog, RunLogPatch
from pydantic import BaseModel
from typing_extensions import TypeAlias
__all__ = [
"init_chat_model",
# For backwards compatibility
"BaseChatModel",
"SimpleChatModel",
"generate_from_stream",
"agenerate_from_stream",
]
@overload
def init_chat_model( # type: ignore[overload-overlap]
model: str,
*,
model_provider: Optional[str] = None,
configurable_fields: Literal[None] = None,
config_prefix: Optional[str] = None,
**kwargs: Any,
) -> BaseChatModel: ...
@overload
def init_chat_model(
model: Literal[None] = None,
*,
model_provider: Optional[str] = None,
configurable_fields: Literal[None] = None,
config_prefix: Optional[str] = None,
**kwargs: Any,
) -> _ConfigurableModel: ...
@overload
def init_chat_model(
model: Optional[str] = None,
*,
model_provider: Optional[str] = None,
configurable_fields: Union[Literal["any"], List[str], Tuple[str, ...]] = ...,
config_prefix: Optional[str] = None,
**kwargs: Any,
) -> _ConfigurableModel: ...
# FOR CONTRIBUTORS: If adding support for a new provider, please append the provider
# name to the supported list in the docstring below. Do *not* change the order of the
# existing providers.
[docs]
@beta()
def init_chat_model(
model: Optional[str] = None,
*,
model_provider: Optional[str] = None,
configurable_fields: Optional[
Union[Literal["any"], List[str], Tuple[str, ...]]
] = None,
config_prefix: Optional[str] = None,
**kwargs: Any,
) -> Union[BaseChatModel, _ConfigurableModel]:
"""Initialize a ChatModel from the model name and provider.
Must have the integration package corresponding to the model provider installed.
Args:
model: The name of the model, e.g. "gpt-4o", "claude-3-opus-20240229".
model_provider: The model provider. Supported model_provider values and the
corresponding integration package:
- openai (langchain-openai)
- anthropic (langchain-anthropic)
- azure_openai (langchain-openai)
- google_vertexai (langchain-google-vertexai)
- google_genai (langchain-google-genai)
- bedrock (langchain-aws)
- bedrock_converse (langchain-aws)
- cohere (langchain-cohere)
- fireworks (langchain-fireworks)
- together (langchain-together)
- mistralai (langchain-mistralai)
- huggingface (langchain-huggingface)
- groq (langchain-groq)
- ollama (langchain-ollama) [support added in langchain==0.2.12]
Will attempt to infer model_provider from model if not specified. The
following providers will be inferred based on these model prefixes:
- gpt-3..., gpt-4..., or o1... -> openai
- claude... -> anthropic
- amazon.... -> bedrock
- gemini... -> google_vertexai
- command... -> cohere
- accounts/fireworks... -> fireworks
- mistral... -> mistralai
configurable_fields: Which model parameters are
configurable:
- None: No configurable fields.
- "any": All fields are configurable. *See Security Note below.*
- Union[List[str], Tuple[str, ...]]: Specified fields are configurable.
Fields are assumed to have config_prefix stripped if there is a
config_prefix. If model is specified, then defaults to None. If model is
not specified, then defaults to ``("model", "model_provider")``.
***Security Note***: Setting ``configurable_fields="any"`` means fields like
api_key, base_url, etc. can be altered at runtime, potentially redirecting
model requests to a different service/user. Make sure that if you're
accepting untrusted configurations that you enumerate the
``configurable_fields=(...)`` explicitly.
config_prefix: If config_prefix is a non-empty string then model will be
configurable at runtime via the
``config["configurable"]["{config_prefix}_{param}"]`` keys. If
config_prefix is an empty string then model will be configurable via
``config["configurable"]["{param}"]``.
kwargs: Additional keyword args to pass to
``<<selected ChatModel>>.__init__(model=model_name, **kwargs)``.
Returns:
A BaseChatModel corresponding to the model_name and model_provider specified if
configurability is inferred to be False. If configurable, a chat model emulator
that initializes the underlying model at runtime once a config is passed in.
Raises:
ValueError: If model_provider cannot be inferred or isn't supported.
ImportError: If the model provider integration package is not installed.
.. dropdown:: Init non-configurable model
:open:
.. code-block:: python
# pip install langchain langchain-openai langchain-anthropic langchain-google-vertexai
from langchain.chat_models import init_chat_model
gpt_4o = init_chat_model("gpt-4o", model_provider="openai", temperature=0)
claude_opus = init_chat_model("claude-3-opus-20240229", model_provider="anthropic", temperature=0)
gemini_15 = init_chat_model("gemini-1.5-pro", model_provider="google_vertexai", temperature=0)
gpt_4o.invoke("what's your name")
claude_opus.invoke("what's your name")
gemini_15.invoke("what's your name")
.. dropdown:: Partially configurable model with no default
.. code-block:: python
# pip install langchain langchain-openai langchain-anthropic
from langchain.chat_models import init_chat_model
# We don't need to specify configurable=True if a model isn't specified.
configurable_model = init_chat_model(temperature=0)
configurable_model.invoke(
"what's your name",
config={"configurable": {"model": "gpt-4o"}}
)
# GPT-4o response
configurable_model.invoke(
"what's your name",
config={"configurable": {"model": "claude-3-5-sonnet-20240620"}}
)
# claude-3.5 sonnet response
.. dropdown:: Fully configurable model with a default
.. code-block:: python
# pip install langchain langchain-openai langchain-anthropic
from langchain.chat_models import init_chat_model
configurable_model_with_default = init_chat_model(
"gpt-4o",
model_provider="openai",
configurable_fields="any", # this allows us to configure other params like temperature, max_tokens, etc at runtime.
config_prefix="foo",
temperature=0
)
configurable_model_with_default.invoke("what's your name")
# GPT-4o response with temperature 0
configurable_model_with_default.invoke(
"what's your name",
config={
"configurable": {
"foo_model": "claude-3-5-sonnet-20240620",
"foo_model_provider": "anthropic",
"foo_temperature": 0.6
}
}
)
# Claude-3.5 sonnet response with temperature 0.6
.. dropdown:: Bind tools to a configurable model
You can call any ChatModel declarative methods on a configurable model in the
same way that you would with a normal model.
.. code-block:: python
# pip install langchain langchain-openai langchain-anthropic
from langchain.chat_models import init_chat_model
from pydantic 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")
configurable_model = init_chat_model(
"gpt-4o",
configurable_fields=("model", "model_provider"),
temperature=0
)
configurable_model_with_tools = configurable_model.bind_tools([GetWeather, GetPopulation])
configurable_model_with_tools.invoke(
"Which city is hotter today and which is bigger: LA or NY?"
)
# GPT-4o response with tool calls
configurable_model_with_tools.invoke(
"Which city is hotter today and which is bigger: LA or NY?",
config={"configurable": {"model": "claude-3-5-sonnet-20240620"}}
)
# Claude-3.5 sonnet response with tools
.. versionadded:: 0.2.7
.. versionchanged:: 0.2.8
Support for ``configurable_fields`` and ``config_prefix`` added.
.. versionchanged:: 0.2.12
Support for ChatOllama via langchain-ollama package added
(langchain_ollama.ChatOllama). Previously,
the now-deprecated langchain-community version of Ollama was imported
(langchain_community.chat_models.ChatOllama).
Support for langchain_aws.ChatBedrockConverse added
(model_provider="bedrock_converse").
""" # noqa: E501
if not model and not configurable_fields:
configurable_fields = ("model", "model_provider")
config_prefix = config_prefix or ""
if config_prefix and not configurable_fields:
warnings.warn(
f"{config_prefix=} has been set but no fields are configurable. Set "
f"`configurable_fields=(...)` to specify the model params that are "
f"configurable."
)
if not configurable_fields:
return _init_chat_model_helper(
cast(str, model), model_provider=model_provider, **kwargs
)
else:
if model:
kwargs["model"] = model
if model_provider:
kwargs["model_provider"] = model_provider
return _ConfigurableModel(
default_config=kwargs,
config_prefix=config_prefix,
configurable_fields=configurable_fields,
)
def _init_chat_model_helper(
model: str, *, model_provider: Optional[str] = None, **kwargs: Any
) -> BaseChatModel:
model_provider = model_provider or _attempt_infer_model_provider(model)
if not model_provider:
raise ValueError(
f"Unable to infer model provider for {model=}, please specify "
f"model_provider directly."
)
model_provider = model_provider.replace("-", "_").lower()
if model_provider == "openai":
_check_pkg("langchain_openai")
from langchain_openai import ChatOpenAI
return ChatOpenAI(model=model, **kwargs)
elif model_provider == "anthropic":
_check_pkg("langchain_anthropic")
from langchain_anthropic import ChatAnthropic
return ChatAnthropic(model=model, **kwargs) # type: ignore[call-arg]
elif model_provider == "azure_openai":
_check_pkg("langchain_openai")
from langchain_openai import AzureChatOpenAI
return AzureChatOpenAI(model=model, **kwargs)
elif model_provider == "cohere":
_check_pkg("langchain_cohere")
from langchain_cohere import ChatCohere
return ChatCohere(model=model, **kwargs)
elif model_provider == "google_vertexai":
_check_pkg("langchain_google_vertexai")
from langchain_google_vertexai import ChatVertexAI
return ChatVertexAI(model=model, **kwargs)
elif model_provider == "google_genai":
_check_pkg("langchain_google_genai")
from langchain_google_genai import ChatGoogleGenerativeAI
return ChatGoogleGenerativeAI(model=model, **kwargs)
elif model_provider == "fireworks":
_check_pkg("langchain_fireworks")
from langchain_fireworks import ChatFireworks
return ChatFireworks(model=model, **kwargs)
elif model_provider == "ollama":
try:
_check_pkg("langchain_ollama")
from langchain_ollama import ChatOllama
except ImportError:
# For backwards compatibility
try:
_check_pkg("langchain_community")
from langchain_community.chat_models import ChatOllama
except ImportError:
# If both langchain-ollama and langchain-community aren't available,
# raise an error related to langchain-ollama
_check_pkg("langchain_ollama")
return ChatOllama(model=model, **kwargs)
elif model_provider == "together":
_check_pkg("langchain_together")
from langchain_together import ChatTogether
return ChatTogether(model=model, **kwargs)
elif model_provider == "mistralai":
_check_pkg("langchain_mistralai")
from langchain_mistralai import ChatMistralAI
return ChatMistralAI(model=model, **kwargs) # type: ignore[call-arg]
elif model_provider == "huggingface":
_check_pkg("langchain_huggingface")
from langchain_huggingface import ChatHuggingFace
return ChatHuggingFace(model_id=model, **kwargs)
elif model_provider == "groq":
_check_pkg("langchain_groq")
from langchain_groq import ChatGroq
return ChatGroq(model=model, **kwargs)
elif model_provider == "bedrock":
_check_pkg("langchain_aws")
from langchain_aws import ChatBedrock
# TODO: update to use model= once ChatBedrock supports
return ChatBedrock(model_id=model, **kwargs)
elif model_provider == "bedrock_converse":
_check_pkg("langchain_aws")
from langchain_aws import ChatBedrockConverse
return ChatBedrockConverse(model=model, **kwargs)
else:
supported = ", ".join(_SUPPORTED_PROVIDERS)
raise ValueError(
f"Unsupported {model_provider=}.\n\nSupported model providers are: "
f"{supported}"
)
_SUPPORTED_PROVIDERS = {
"openai",
"anthropic",
"azure_openai",
"cohere",
"google_vertexai",
"google_genai",
"fireworks",
"ollama",
"together",
"mistralai",
"huggingface",
"groq",
"bedrock",
"bedrock_converse",
}
def _attempt_infer_model_provider(model_name: str) -> Optional[str]:
if any(model_name.startswith(pre) for pre in ("gpt-3", "gpt-4", "o1")):
return "openai"
elif model_name.startswith("claude"):
return "anthropic"
elif model_name.startswith("command"):
return "cohere"
elif model_name.startswith("accounts/fireworks"):
return "fireworks"
elif model_name.startswith("gemini"):
return "google_vertexai"
elif model_name.startswith("amazon."):
return "bedrock"
elif model_name.startswith("mistral"):
return "mistralai"
else:
return None
def _check_pkg(pkg: str) -> None:
if not util.find_spec(pkg):
pkg_kebab = pkg.replace("_", "-")
raise ImportError(
f"Unable to import {pkg_kebab}. Please install with "
f"`pip install -U {pkg_kebab}`"
)
def _remove_prefix(s: str, prefix: str) -> str:
if s.startswith(prefix):
s = s[len(prefix) :]
return s
_DECLARATIVE_METHODS = ("bind_tools", "with_structured_output")
class _ConfigurableModel(Runnable[LanguageModelInput, Any]):
def __init__(
self,
*,
default_config: Optional[dict] = None,
configurable_fields: Union[Literal["any"], List[str], Tuple[str, ...]] = "any",
config_prefix: str = "",
queued_declarative_operations: Sequence[Tuple[str, Tuple, Dict]] = (),
) -> None:
self._default_config: dict = default_config or {}
self._configurable_fields: Union[Literal["any"], List[str]] = (
configurable_fields
if configurable_fields == "any"
else list(configurable_fields)
)
self._config_prefix = (
config_prefix + "_"
if config_prefix and not config_prefix.endswith("_")
else config_prefix
)
self._queued_declarative_operations: List[Tuple[str, Tuple, Dict]] = list(
queued_declarative_operations
)
def __getattr__(self, name: str) -> Any:
if name in _DECLARATIVE_METHODS:
# Declarative operations that cannot be applied until after an actual model
# object is instantiated. So instead of returning the actual operation,
# we record the operation and its arguments in a queue. This queue is
# then applied in order whenever we actually instantiate the model (in
# self._model()).
def queue(*args: Any, **kwargs: Any) -> _ConfigurableModel:
queued_declarative_operations = list(
self._queued_declarative_operations
)
queued_declarative_operations.append((name, args, kwargs))
return _ConfigurableModel(
default_config=dict(self._default_config),
configurable_fields=list(self._configurable_fields)
if isinstance(self._configurable_fields, list)
else self._configurable_fields,
config_prefix=self._config_prefix,
queued_declarative_operations=queued_declarative_operations,
)
return queue
elif self._default_config and (model := self._model()) and hasattr(model, name):
return getattr(model, name)
else:
msg = f"{name} is not a BaseChatModel attribute"
if self._default_config:
msg += " and is not implemented on the default model"
msg += "."
raise AttributeError(msg)
def _model(self, config: Optional[RunnableConfig] = None) -> Runnable:
params = {**self._default_config, **self._model_params(config)}
model = _init_chat_model_helper(**params)
for name, args, kwargs in self._queued_declarative_operations:
model = getattr(model, name)(*args, **kwargs)
return model
def _model_params(self, config: Optional[RunnableConfig]) -> dict:
config = config or {}
model_params = {
_remove_prefix(k, self._config_prefix): v
for k, v in config.get("configurable", {}).items()
if k.startswith(self._config_prefix)
}
if self._configurable_fields != "any":
model_params = {
k: v for k, v in model_params.items() if k in self._configurable_fields
}
return model_params
def with_config(
self,
config: Optional[RunnableConfig] = None,
**kwargs: Any,
) -> _ConfigurableModel:
"""Bind config to a Runnable, returning a new Runnable."""
config = RunnableConfig(**(config or {}), **cast(RunnableConfig, kwargs))
model_params = self._model_params(config)
remaining_config = {k: v for k, v in config.items() if k != "configurable"}
remaining_config["configurable"] = {
k: v
for k, v in config.get("configurable", {}).items()
if _remove_prefix(k, self._config_prefix) not in model_params
}
queued_declarative_operations = list(self._queued_declarative_operations)
if remaining_config:
queued_declarative_operations.append(
("with_config", (), {"config": remaining_config})
)
return _ConfigurableModel(
default_config={**self._default_config, **model_params},
configurable_fields=list(self._configurable_fields)
if isinstance(self._configurable_fields, list)
else self._configurable_fields,
config_prefix=self._config_prefix,
queued_declarative_operations=queued_declarative_operations,
)
@property
def InputType(self) -> TypeAlias:
"""Get the input type for this runnable."""
from langchain_core.prompt_values import (
ChatPromptValueConcrete,
StringPromptValue,
)
# This is a version of LanguageModelInput which replaces the abstract
# base class BaseMessage with a union of its subclasses, which makes
# for a much better schema.
return Union[
str,
Union[StringPromptValue, ChatPromptValueConcrete],
List[AnyMessage],
]
def invoke(
self,
input: LanguageModelInput,
config: Optional[RunnableConfig] = None,
**kwargs: Any,
) -> Any:
return self._model(config).invoke(input, config=config, **kwargs)
async def ainvoke(
self,
input: LanguageModelInput,
config: Optional[RunnableConfig] = None,
**kwargs: Any,
) -> Any:
return await self._model(config).ainvoke(input, config=config, **kwargs)
def stream(
self,
input: LanguageModelInput,
config: Optional[RunnableConfig] = None,
**kwargs: Optional[Any],
) -> Iterator[Any]:
yield from self._model(config).stream(input, config=config, **kwargs)
async def astream(
self,
input: LanguageModelInput,
config: Optional[RunnableConfig] = None,
**kwargs: Optional[Any],
) -> AsyncIterator[Any]:
async for x in self._model(config).astream(input, config=config, **kwargs):
yield x
def batch(
self,
inputs: List[LanguageModelInput],
config: Optional[Union[RunnableConfig, List[RunnableConfig]]] = None,
*,
return_exceptions: bool = False,
**kwargs: Optional[Any],
) -> List[Any]:
config = config or None
# If <= 1 config use the underlying models batch implementation.
if config is None or isinstance(config, dict) or len(config) <= 1:
if isinstance(config, list):
config = config[0]
return self._model(config).batch(
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
# If multiple configs default to Runnable.batch which uses executor to invoke
# in parallel.
else:
return super().batch(
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
async def abatch(
self,
inputs: List[LanguageModelInput],
config: Optional[Union[RunnableConfig, List[RunnableConfig]]] = None,
*,
return_exceptions: bool = False,
**kwargs: Optional[Any],
) -> List[Any]:
config = config or None
# If <= 1 config use the underlying models batch implementation.
if config is None or isinstance(config, dict) or len(config) <= 1:
if isinstance(config, list):
config = config[0]
return await self._model(config).abatch(
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
# If multiple configs default to Runnable.batch which uses executor to invoke
# in parallel.
else:
return await super().abatch(
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
def batch_as_completed(
self,
inputs: Sequence[LanguageModelInput],
config: Optional[Union[RunnableConfig, Sequence[RunnableConfig]]] = None,
*,
return_exceptions: bool = False,
**kwargs: Any,
) -> Iterator[Tuple[int, Union[Any, Exception]]]:
config = config or None
# If <= 1 config use the underlying models batch implementation.
if config is None or isinstance(config, dict) or len(config) <= 1:
if isinstance(config, list):
config = config[0]
yield from self._model(cast(RunnableConfig, config)).batch_as_completed( # type: ignore[call-overload]
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
# If multiple configs default to Runnable.batch which uses executor to invoke
# in parallel.
else:
yield from super().batch_as_completed( # type: ignore[call-overload]
inputs, config=config, return_exceptions=return_exceptions, **kwargs
)
async def abatch_as_completed(
self,
inputs: Sequence[LanguageModelInput],
config: Optional[Union[RunnableConfig, Sequence[RunnableConfig]]] = None,
*,
return_exceptions: bool = False,
**kwargs: Any,
) -> AsyncIterator[Tuple[int, Any]]:
config = config or None
# If <= 1 config use the underlying models batch implementation.
if config is None or isinstance(config, dict) or len(config) <= 1:
if isinstance(config, list):
config = config[0]
async for x in self._model(
cast(RunnableConfig, config)
).abatch_as_completed( # type: ignore[call-overload]
inputs, config=config, return_exceptions=return_exceptions, **kwargs
):
yield x
# If multiple configs default to Runnable.batch which uses executor to invoke
# in parallel.
else:
async for x in super().abatch_as_completed( # type: ignore[call-overload]
inputs, config=config, return_exceptions=return_exceptions, **kwargs
):
yield x
def transform(
self,
input: Iterator[LanguageModelInput],
config: Optional[RunnableConfig] = None,
**kwargs: Optional[Any],
) -> Iterator[Any]:
for x in self._model(config).transform(input, config=config, **kwargs):
yield x
async def atransform(
self,
input: AsyncIterator[LanguageModelInput],
config: Optional[RunnableConfig] = None,
**kwargs: Optional[Any],
) -> AsyncIterator[Any]:
async for x in self._model(config).atransform(input, config=config, **kwargs):
yield x
@overload
def astream_log(
self,
input: Any,
config: Optional[RunnableConfig] = None,
*,
diff: Literal[True] = True,
with_streamed_output_list: bool = True,
include_names: Optional[Sequence[str]] = None,
include_types: Optional[Sequence[str]] = None,
include_tags: Optional[Sequence[str]] = None,
exclude_names: Optional[Sequence[str]] = None,
exclude_types: Optional[Sequence[str]] = None,
exclude_tags: Optional[Sequence[str]] = None,
**kwargs: Any,
) -> AsyncIterator[RunLogPatch]: ...
@overload
def astream_log(
self,
input: Any,
config: Optional[RunnableConfig] = None,
*,
diff: Literal[False],
with_streamed_output_list: bool = True,
include_names: Optional[Sequence[str]] = None,
include_types: Optional[Sequence[str]] = None,
include_tags: Optional[Sequence[str]] = None,
exclude_names: Optional[Sequence[str]] = None,
exclude_types: Optional[Sequence[str]] = None,
exclude_tags: Optional[Sequence[str]] = None,
**kwargs: Any,
) -> AsyncIterator[RunLog]: ...
async def astream_log(
self,
input: Any,
config: Optional[RunnableConfig] = None,
*,
diff: bool = True,
with_streamed_output_list: bool = True,
include_names: Optional[Sequence[str]] = None,
include_types: Optional[Sequence[str]] = None,
include_tags: Optional[Sequence[str]] = None,
exclude_names: Optional[Sequence[str]] = None,
exclude_types: Optional[Sequence[str]] = None,
exclude_tags: Optional[Sequence[str]] = None,
**kwargs: Any,
) -> Union[AsyncIterator[RunLogPatch], AsyncIterator[RunLog]]:
async for x in self._model(config).astream_log( # type: ignore[call-overload, misc]
input,
config=config,
diff=diff,
with_streamed_output_list=with_streamed_output_list,
include_names=include_names,
include_types=include_types,
include_tags=include_tags,
exclude_tags=exclude_tags,
exclude_types=exclude_types,
exclude_names=exclude_names,
**kwargs,
):
yield x
async def astream_events(
self,
input: Any,
config: Optional[RunnableConfig] = None,
*,
version: Literal["v1", "v2"],
include_names: Optional[Sequence[str]] = None,
include_types: Optional[Sequence[str]] = None,
include_tags: Optional[Sequence[str]] = None,
exclude_names: Optional[Sequence[str]] = None,
exclude_types: Optional[Sequence[str]] = None,
exclude_tags: Optional[Sequence[str]] = None,
**kwargs: Any,
) -> AsyncIterator[StreamEvent]:
async for x in self._model(config).astream_events(
input,
config=config,
version=version,
include_names=include_names,
include_types=include_types,
include_tags=include_tags,
exclude_tags=exclude_tags,
exclude_types=exclude_types,
exclude_names=exclude_names,
**kwargs,
):
yield x
# Explicitly added to satisfy downstream linters.
def bind_tools(
self,
tools: Sequence[Union[Dict[str, Any], Type[BaseModel], Callable, BaseTool]],
**kwargs: Any,
) -> Runnable[LanguageModelInput, BaseMessage]:
return self.__getattr__("bind_tools")(tools, **kwargs)
# Explicitly added to satisfy downstream linters.
def with_structured_output(
self, schema: Union[Dict, Type[BaseModel]], **kwargs: Any
) -> Runnable[LanguageModelInput, Union[Dict, BaseModel]]:
return self.__getattr__("with_structured_output")(schema, **kwargs)
