Commit Graph

298 Commits

Author SHA1 Message Date
Serena Ruan
f01fb47597
community[patch]: MLflowCallbackHandler -- Move textstat and spacy as optional dependency (#16657)
Signed-off-by: Serena Ruan <serena.rxy@gmail.com>
2024-01-27 16:15:07 -08:00
Zhuoyun(John) Xu
508bde7f40
community[patch]: Ollama - Pass headers to post request in async method (#16660)
# Description
A previous PR (https://github.com/langchain-ai/langchain/pull/15881)
added option to pass headers to ollama endpoint, but headers are not
pass to the async method.
2024-01-27 16:11:32 -08:00
João Carlos Ferra de Almeida
3e87b67a3c
community[patch]: Add Cookie Support to Fetch Method (#16673)
- **Description:** This change allows the `_fetch` method in the
`WebBaseLoader` class to utilize cookies from an existing
`requests.Session`. It ensures that when the `fetch` method is used, any
cookies in the provided session are included in the request. This
enhancement maintains compatibility with existing functionality while
extending the utility of the `fetch` method for scenarios where cookie
persistence is necessary.
- **Issue:** Not applicable (new feature),
- **Dependencies:** Requires `aiohttp` and `requests` libraries (no new
dependencies introduced),
- **Twitter handle:** N/A

Co-authored-by: Joao Almeida <joao.almeida@mercedes-benz.io>
2024-01-27 16:03:53 -08:00
Harrison Chase
27665e3546
[community] fix anthropic streaming (#16682) 2024-01-27 15:16:22 -08:00
Christophe Bornet
4915c3cd86
[Fix] Fix Cassandra Document loader default page content mapper (#16273)
We can't use `json.dumps` by default as many types returned by the
cassandra driver are not serializable. It's safer to use `str` and let
users define their own custom `page_content_mapper` if needed.
2024-01-27 11:23:02 -08:00
Pasha
4e189cd89a
community[patch]: youtube loader transcript format (#16625)
- **Description**: YoutubeLoader right now returns one document that
contains the entire transcript. I think it would be useful to add an
option to return multiple documents, where each document would contain
one line of transcript with the start time and duration in the metadata.
For example,
[AssemblyAIAudioTranscriptLoader](https://github.com/langchain-ai/langchain/blob/master/libs/community/langchain_community/document_loaders/assemblyai.py)
is implemented in a similar way, it allows you to choose between the
format to use for the document loader.
2024-01-26 15:26:09 -08:00
yin1991
a936472512
docs: Update documentation to use 'model_id' rather than 'model_name' to match actual API (#16615)
- **Description:** Replace 'model_name' with 'model_id' for accuracy 
- **Issue:**
[link-to-issue](https://github.com/langchain-ai/langchain/issues/16577)
  - **Dependencies:** 
  - **Twitter handle:**
2024-01-26 15:01:12 -08:00
Micah Parker
6543e585a5
community[patch]: Added support for Ollama's num_predict option in ChatOllama (#16633)
Just a simple default addition to the options payload for a ollama
generate call to support a max_new_tokens parameter.

Should fix issue: https://github.com/langchain-ai/langchain/issues/14715
2024-01-26 15:00:19 -08:00
baichuan-assistant
70ff54eace
community[minor]: Add Baichuan Text Embedding Model and Baichuan Inc introduction (#16568)
- **Description:** Adding Baichuan Text Embedding Model and Baichuan Inc
introduction.

Baichuan Text Embedding ranks #1 in C-MTEB leaderboard:
https://huggingface.co/spaces/mteb/leaderboard

Co-authored-by: BaiChuanHelper <wintergyc@WinterGYCs-MacBook-Pro.local>
2024-01-26 12:57:26 -08:00
Ghani
e30c6662df
Langchain-community : EdenAI chat integration. (#16377)
- **Description:** This PR adds [EdenAI](https://edenai.co/) for the
chat model (already available in LLM & Embeddings). It supports all
[ChatModel] functionality: generate, async generate, stream, astream and
batch. A detailed notebook was added.

  - **Dependencies**: No dependencies are added as we call a rest API.

---------

Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
2024-01-26 09:56:43 -05:00
Jatin Chawda
a79345f199
community[patch]: Fixed tool names snake_case (#16397)
#16396
Fixed
1. golden_query
2. google_lens
3. memorize
4. merriam_webster
5. open_weather_map
6. pub_med
7. stack_exchange
8. generate_image
9. wikipedia
2024-01-25 15:24:19 -08:00
Bagatur
61e876aad8
openai[patch]: Explicitly support embedding dimensions (#16596) 2024-01-25 15:16:04 -08:00
Bagatur
5df8ab574e
infra: move indexing documentation test (#16595) 2024-01-25 14:46:50 -08:00
Bagatur
61b200947f
community[patch]: Release 0.0.16 (#16591) 2024-01-25 14:19:09 -08:00
Bagatur
ef42d9d559
core[patch], community[patch], openai[patch]: consolidate openai tool… (#16485)
… converters

One way to convert anything to an OAI function:
convert_to_openai_function
One way to convert anything to an OAI tool: convert_to_openai_tool
Corresponding bind functions on OAI models: bind_functions, bind_tools
2024-01-25 13:18:46 -08:00
Brian Burgin
148347e858
community[minor]: Add LiteLLM Router Integration (#15588)
community:

  - **Description:**
- Add new ChatLiteLLMRouter class that allows a client to use a LiteLLM
Router as a LangChain chat model.
- Note: The existing ChatLiteLLM integration did not cover the LiteLLM
Router class.
    - Add tests and Jupyter notebook.
  - **Issue:** None
  - **Dependencies:** Relies on existing ChatLiteLLM integration
  - **Twitter handle:** @bburgin_0

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-25 11:03:05 -08:00
Dmitry Tyumentsev
e86e66bad7
community[patch]: YandexGPT models - add sleep_interval (#16566)
Added sleep between requests to prevent errors associated with
simultaneous requests.
2024-01-25 09:07:19 -08:00
Erick Friis
adc008407e
exa: init pkg (#16553) 2024-01-24 20:57:17 -07:00
Rave Harpaz
c4e9c9ca29
community[minor]: Add OCI Generative AI integration (#16548)
<!-- Thank you for contributing to LangChain!

Please title your PR "<package>: <description>", where <package> is
whichever of langchain, community, core, experimental, etc. is being
modified.

Replace this entire comment with:
- **Description:** Adding Oracle Cloud Infrastructure Generative AI
integration. Oracle Cloud Infrastructure (OCI) Generative AI is a fully
managed service that provides a set of state-of-the-art, customizable
large language models (LLMs) that cover a wide range of use cases, and
which is available through a single API. Using the OCI Generative AI
service you can access ready-to-use pretrained models, or create and
host your own fine-tuned custom models based on your own data on
dedicated AI clusters.
https://docs.oracle.com/en-us/iaas/Content/generative-ai/home.htm
  - **Issue:** None,
  - **Dependencies:** OCI Python SDK,
- **Twitter handle:** we announce bigger features on Twitter. If your PR
gets announced, and you'd like a mention, we'll gladly shout you out!

Please make sure your PR is passing linting and testing before
submitting. Run `make format`, `make lint` and `make test` from the root
of the package you've modified to check this locally.
Passed

See contribution guidelines for more information on how to write/run
tests, lint, etc: https://python.langchain.com/docs/contributing/

If you're adding a new integration, please include:
1. a test for the integration, preferably unit tests that do not rely on
network access,
2. an example notebook showing its use. It lives in
`docs/docs/integrations` directory.

we provide unit tests. However, we cannot provide integration tests due
to Oracle policies that prohibit public sharing of api keys.
 
If no one reviews your PR within a few days, please @-mention one of
@baskaryan, @eyurtsev, @hwchase17.
 -->

---------

Co-authored-by: Arthur Cheng <arthur.cheng@oracle.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-24 18:23:50 -08:00
Harel Gal
a91181fe6d
community[minor]: add support for Guardrails for Amazon Bedrock (#15099)
Added support for optionally supplying 'Guardrails for Amazon Bedrock'
on both types of model invocations (batch/regular and streaming) and for
all models supported by the Amazon Bedrock service.

@baskaryan  @hwchase17

```python 
llm = Bedrock(model_id="<model_id>", client=bedrock,
                  model_kwargs={},
                  guardrails={"id": " <guardrail_id>",
                              "version": "<guardrail_version>",
                               "trace": True}, callbacks=[BedrockAsyncCallbackHandler()])

class BedrockAsyncCallbackHandler(AsyncCallbackHandler):
    """Async callback handler that can be used to handle callbacks from langchain."""

    async def on_llm_error(
            self,
            error: BaseException,
            **kwargs: Any,
    ) -> Any:
        reason = kwargs.get("reason")
        if reason == "GUARDRAIL_INTERVENED":
           # kwargs contains additional trace information sent by 'Guardrails for Bedrock' service.
            print(f"""Guardrails: {kwargs}""")


# streaming 
llm = Bedrock(model_id="<model_id>", client=bedrock,
                  model_kwargs={},
                  streaming=True,
                  guardrails={"id": "<guardrail_id>",
                              "version": "<guardrail_version>"})
```

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-24 14:44:19 -08:00
Martin Kolb
04651f0248
community[minor]: VectorStore integration for SAP HANA Cloud Vector Engine (#16514)
- **Description:**
This PR adds a VectorStore integration for SAP HANA Cloud Vector Engine,
which is an upcoming feature in the SAP HANA Cloud database
(https://blogs.sap.com/2023/11/02/sap-hana-clouds-vector-engine-announcement/).

  - **Issue:** N/A
- **Dependencies:** [SAP HANA Python
Client](https://pypi.org/project/hdbcli/)
  - **Twitter handle:** @sapopensource

Implementation of the integration:
`libs/community/langchain_community/vectorstores/hanavector.py`

Unit tests:
`libs/community/tests/unit_tests/vectorstores/test_hanavector.py`

Integration tests:
`libs/community/tests/integration_tests/vectorstores/test_hanavector.py`

Example notebook:
`docs/docs/integrations/vectorstores/hanavector.ipynb`

Access credentials for execution of the integration tests can be
provided to the maintainers.

---------

Co-authored-by: sascha <sascha.stoll@sap.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-24 14:05:07 -08:00
Unai Garay Maestre
fdbfa6b2c8
Adds progress bar to VertexAIEmbeddings (#14542)
- **Description:** Adds progress bar to VertexAIEmbeddings 
- **Issue:** related issue
https://github.com/langchain-ai/langchain/issues/13637

Signed-off-by: ugm2 <unaigaraymaestre@gmail.com>

---------

Signed-off-by: ugm2 <unaigaraymaestre@gmail.com>
2024-01-24 11:16:16 -07:00
Jeremi Joslin
9e95699277
community[patch]: Fix error message when litellm is not installed (#16316)
The error message was mentioning the wrong package. I updated it to the
correct one.
2024-01-23 21:42:29 -08:00
bachr
b3ed98dec0
community[patch]: avoid KeyError when language not in LANGUAGE_SEGMENTERS (#15212)
**Description:**

Handle unsupported languages in same way as when none is provided 
 
**Issue:**

The following line will throw a KeyError if the language is not
supported.
```python
self.Segmenter = LANGUAGE_SEGMENTERS[language]
```
E.g. when using `Language.CPP` we would get `KeyError: <Language.CPP:
'cpp'>`

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-23 21:09:43 -08:00
chyroc
61da2ff24c
community[patch]: use SecretStr for yandex model secrets (#15463) 2024-01-23 20:08:53 -08:00
Alessio Serra
d628a80a5d
community[patch]: added 'conversational' as a valid task for hugginface endopoint models (#15761)
- **Description:** added the conversational task to hugginFace endpoint
in order to use models designed for chatbot programming.
  - **Dependencies:** None

---------

Co-authored-by: Alessio Serra (ext.) <alessio.serra@partner.bmw.de>
Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
2024-01-23 20:04:15 -08:00
Karim Lalani
4c7755778d
community[patch]: SurrealDB fix for asyncio (#16092)
Code fix for asyncio
2024-01-23 19:46:19 -08:00
Raunak
476bf8b763
community[patch]: Load list of files using UnstructuredFileLoader (#16216)
- **Description:** Updated `_get_elements()` function of
`UnstructuredFileLoader `class to check if the argument self.file_path
is a file or list of files. If it is a list of files then it iterates
over the list of file paths, calls the partition function for each one,
and appends the results to the elements list. If self.file_path is not a
list, it calls the partition function as before.
  
  - **Issue:** Fixed #15607,
  - **Dependencies:** NA
  - **Twitter handle:** NA

Co-authored-by: H161961 <Raunak.Raunak@Honeywell.com>
2024-01-23 19:37:37 -08:00
Xudong Sun
019b6ebe8d
community[minor]: Add iFlyTek Spark LLM chat model support (#13389)
- **Description:** This PR enables LangChain to access the iFlyTek's
Spark LLM via the chat_models wrapper.
  - **Dependencies:** websocket-client ^1.6.1
  - **Tag maintainer:** @baskaryan 

### SparkLLM chat model usage

Get SparkLLM's app_id, api_key and api_secret from [iFlyTek SparkLLM API
Console](https://console.xfyun.cn/services/bm3) (for more info, see
[iFlyTek SparkLLM Intro](https://xinghuo.xfyun.cn/sparkapi) ), then set
environment variables `IFLYTEK_SPARK_APP_ID`, `IFLYTEK_SPARK_API_KEY`
and `IFLYTEK_SPARK_API_SECRET` or pass parameters when using it like the
demo below:

```python3
from langchain.chat_models.sparkllm import ChatSparkLLM

client = ChatSparkLLM(
    spark_app_id="<app_id>",
    spark_api_key="<api_key>",
    spark_api_secret="<api_secret>"
)
```
2024-01-23 19:23:46 -08:00
Serena Ruan
5c6e123757
community[patch]: Fix MlflowCallback with none artifacts_dir (#16487) 2024-01-23 19:09:02 -08:00
bu2kx
ff3163297b
community[minor]: Add KDBAI vector store (#12797)
Addition of KDBAI vector store (https://kdb.ai).

Dependencies: `kdbai_client` v0.1.2 Python package.

Sample notebook: `docs/docs/integrations/vectorstores/kdbai.ipynb`

Tag maintainer: @bu2kx
Twitter handle: @kxsystems
2024-01-23 18:37:01 -08:00
Shivani Modi
4e160540ff
community[minor]: Adding Konko Completion endpoint (#15570)
This PR introduces update to Konko Integration with LangChain.

1. **New Endpoint Addition**: Integration of a new endpoint to utilize
completion models hosted on Konko.

2. **Chat Model Updates for Backward Compatibility**: We have updated
the chat models to ensure backward compatibility with previous OpenAI
versions.

4. **Updated Documentation**: Comprehensive documentation has been
updated to reflect these new changes, providing clear guidance on
utilizing the new features and ensuring seamless integration.

Thank you to the LangChain team for their exceptional work and for
considering this PR. Please let me know if any additional information is
needed.

---------

Co-authored-by: Shivani Modi <shivanimodi@Shivanis-MacBook-Pro.local>
Co-authored-by: Shivani Modi <shivanimodi@Shivanis-MBP.lan>
2024-01-23 18:22:32 -08:00
Noah Stapp
e135e5257c
community[patch]: Include scores in MongoDB Atlas QA chain results (#14666)
Adds the ability to return similarity scores when using
`RetrievalQA.from_chain_type` with `MongoDBAtlasVectorSearch`. Requires
that `return_source_documents=True` is set.

Example use:

```
vector_search = MongoDBAtlasVectorSearch.from_documents(...)

qa = RetrievalQA.from_chain_type(
	llm=OpenAI(), 
	chain_type="stuff", 
	retriever=vector_search.as_retriever(search_kwargs={"additional": ["similarity_score"]}),
	return_source_documents=True
)

...

docs = qa({"query": "..."})

docs["source_documents"][0].metadata["score"] # score will be here
```

I've tested this feature locally, using a MongoDB Atlas Cluster with a
vector search index.
2024-01-23 18:18:28 -08:00
Serena Ruan
90f5a1c40e
community[minor]: Improve mlflow callback (#15691)
- **Description:** Allow passing run_id to MLflowCallbackHandler to
resume a run instead of creating a new run. Support recording retriever
relevant metrics. Refactor the code to fix some bugs.
---------

Signed-off-by: Serena Ruan <serena.rxy@gmail.com>
2024-01-23 18:16:51 -08:00
Facundo Santiago
92e6a641fd
feat: adding paygo api support for Azure ML / Azure AI Studio (#14560)
- **Description:** Introducing support for LLMs and Chat models running
in Azure AI studio and Azure ML using the new deployment mode
pay-as-you-go (model as a service).
- **Issue:** NA
- **Dependencies:** None.
- **Tag maintainer:** @prakharg-msft @gdyre 
- **Twitter handle:** @santiagofacundo

Examples added:
*
[docs/docs/integrations/llms/azure_ml.ipynb](https://github.com/santiagxf/langchain/blob/santiagxf/azureml-endpoints-paygo-community/docs/docs/integrations/chat/azureml_endpoint.ipynb)
*
[docs/docs/integrations/chat/azureml_chat_endpoint.ipynb](https://github.com/santiagxf/langchain/blob/santiagxf/azureml-endpoints-paygo-community/docs/docs/integrations/chat/azureml_chat_endpoint.ipynb)

---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2024-01-23 17:08:51 -08:00
Davide Menini
9ce177580a
community: normalize bedrock embeddings (#15103)
In this PR I added a post-processing function to normalize the
embeddings. This happens only if the new `normalize` flag is `True`.

---------

Co-authored-by: taamedag <Davide.Menini@swisscom.com>
2024-01-23 17:05:24 -08:00
baichuan-assistant
20fcd49348
community: Fix Baichuan Chat. (#15207)
- **Description:** Baichuan Chat (with both Baichuan-Turbo and
Baichuan-Turbo-192K models) has updated their APIs. There are breaking
changes. For example, BAICHUAN_SECRET_KEY is removed in the latest API
but is still required in Langchain. Baichuan's Langchain integration
needs to be updated to the latest version.
  - **Issue:** #15206
  - **Dependencies:** None,
  - **Twitter handle:** None

@hwchase17.

Co-authored-by: BaiChuanHelper <wintergyc@WinterGYCs-MacBook-Pro.local>
2024-01-23 17:01:57 -08:00
gcheron
cfc225ecb3
community: SQLStrStore/SQLDocStore provide an easy SQL alternative to InMemoryStore to persist data remotely in a SQL storage (#15909)
**Description:**

- Implement `SQLStrStore` and `SQLDocStore` classes that inherits from
`BaseStore` to allow to persist data remotely on a SQL server.
- SQL is widely used and sometimes we do not want to install a caching
solution like Redis.
- Multiple issues/comments complain that there is no easy remote and
persistent solution that are not in memory (users want to replace
InMemoryStore), e.g.,
https://github.com/langchain-ai/langchain/issues/14267,
https://github.com/langchain-ai/langchain/issues/15633,
https://github.com/langchain-ai/langchain/issues/14643,
https://stackoverflow.com/questions/77385587/persist-parentdocumentretriever-of-langchain
- This is particularly painful when wanting to use
`ParentDocumentRetriever `
- This implementation is particularly useful when:
     * it's expensive to construct an InMemoryDocstore/dict
     * you want to retrieve documents from remote sources
     * you just want to reuse existing objects
- This implementation integrates well with PGVector, indeed, when using
PGVector, you already have a SQL instance running. `SQLDocStore` is a
convenient way of using this instance to store documents associated to
vectors. An integration example with ParentDocumentRetriever and
PGVector is provided in docs/docs/integrations/stores/sql.ipynb or
[here](https://github.com/gcheron/langchain/blob/sql-store/docs/docs/integrations/stores/sql.ipynb).
- It persists `str` and `Document` objects but can be easily extended.

 **Issue:**

Provide an easy SQL alternative to `InMemoryStore`.

---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2024-01-23 16:50:48 -08:00
Massimiliano Pronesti
e529939c54
feat(llms): support more tasks in HuggingFaceHub LLM and remove deprecated dep (#14406)
- **Description:** this PR upgrades the `HuggingFaceHub` LLM:
   * support more tasks (`translation` and `conversational`)
   * replaced the deprecated `InferenceApi` with `InferenceClient`
* adjusted the overall logic to use the "recommended" model for each
task when no model is provided, and vice-versa.
- **Tag mainter(s)**: @baskaryan @hwchase17
2024-01-23 16:48:56 -08:00
Bagatur
54149292f8
community[patch]: Release 0.0.15 (#16474) 2024-01-23 11:50:10 -08:00
Tomaz Bratanic
d0a8082188
Fix neo4j sanitize (#16439)
Fix the sanitization bug and add an integration test
2024-01-23 10:56:28 -05:00
Florian MOREL
4b7969efc5
community[minor]: New documents loader for visio files (with extension .vsdx) (#16171)
**Description** : New documents loader for visio files (with extension
.vsdx)

A [visio file](https://fr.wikipedia.org/wiki/Microsoft_Visio) (with
extension .vsdx) is associated with Microsoft Visio, a diagram creation
software. It stores information about the structure, layout, and
graphical elements of a diagram. This format facilitates the creation
and sharing of visualizations in areas such as business, engineering,
and computer science.

A Visio file can contain multiple pages. Some of them may serve as the
background for others, and this can occur across multiple layers. This
loader extracts the textual content from each page and its associated
pages, enabling the extraction of all visible text from each page,
similar to what an OCR algorithm would do.

**Dependencies** : xmltodict package
2024-01-22 22:07:03 -08:00
Boris Feld
404abf139a
community: Add CometLLM tracing context var (#15765)
I also added LANGCHAIN_COMET_TRACING to enable the CometLLM tracing
integration similar to other tracing integrations. This is easier for
end-users to enable it rather than importing the callback and pass it
manually.

(This is the same content as
https://github.com/langchain-ai/langchain/pull/14650 but rebased and
squashed as something seems to confuse Github Action).
2024-01-22 15:17:16 -08:00
DL
b9e7f6f38a
community[minor]: Bedrock async methods (#12477)
Description: Added support for asynchronous streaming in the Bedrock
class and corresponding tests.

Primarily:
  async def aprepare_output_stream
    async def _aprepare_input_and_invoke_stream
    async def _astream
    async def _acall

I've ensured that the code adheres to the project's linting and
formatting standards by running make format, make lint, and make test.

Issue: #12054, #11589

Dependencies: None

Tag maintainer: @baskaryan 

Twitter handle: @dominic_lovric

---------

Co-authored-by: Piyush Jain <piyushjain@duck.com>
2024-01-22 14:44:49 -08:00
Frank995
5694728816
community[patch]: Implement vector length definition at init time in PGVector for indexing (#16133)
Replace this entire comment with:
- **Description:** allow user to define tVector length in PGVector when
creating the embedding store, this allows for later indexing
  - **Issue:** #16132
  - **Dependencies:** None
2024-01-22 14:32:44 -08:00
parkererickson-tg
b26a22f307
community[minor]: add TigerGraph support (#16280)
**Description:** Add support for querying TigerGraph databases through
the InquiryAI service.
**Issue**: N/A
**Dependencies:** N/A
**Twitter handle:** @TigerGraphDB
2024-01-22 14:07:44 -08:00
Alireza Kashani
d1b4ead87c
community[patch]: Update grobid.py (#16298)
there is a case where "coords" does not exist in the "sentence"
therefore, the "split(";")" will lead to error.

we can fix that by adding "if sentence.get("coords") is not None:" 

the resulting empty "sbboxes" from this scenario will raise error at
"sbboxes[0]["page"]" because sbboxes are empty.

the PDF from https://pubmed.ncbi.nlm.nih.gov/23970373/ can replicate
those errors.
2024-01-22 14:03:58 -08:00
s-g-1
fbe592a5ce
community[patch]: fix typo in pgvecto_rs debug msg (#16318)
fixes typo in pip install message for the pgvecto_rs community vector
store
no issues found mentioning this
no dependents changed
2024-01-22 14:01:33 -08:00
Ian
b9f5104e6c
communty[minor]: Store Message History to TiDB Database (#16304)
This pull request integrates the TiDB database into LangChain for
storing message history, marking one of several steps towards a
comprehensive integration of TiDB with LangChain.


A simple usage
```python
from datetime import datetime
from langchain_community.chat_message_histories import TiDBChatMessageHistory

history = TiDBChatMessageHistory(
    connection_string="mysql+pymysql://<host>:<PASSWORD>@<host>:4000/<db>?ssl_ca=/etc/ssl/cert.pem&ssl_verify_cert=true&ssl_verify_identity=true",
    session_id="code_gen",
    earliest_time=datetime.utcnow(),  # Optional to set earliest_time to load messages after this time point.
)

history.add_user_message("hi! How's feature going?")
history.add_ai_message("It's almot done")
```
2024-01-22 13:56:56 -08:00
Erick Friis
cfe95ab085
multiple: update langsmith dep (#16407) 2024-01-22 14:23:11 -07:00