Commit Graph

99 Commits (52ccae3fb12a77b638b4e3467bef1b6ef50591ef)

Author SHA1 Message Date
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
7 months ago
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>
7 months ago
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>
7 months ago
Bagatur 5df8ab574e
infra: move indexing documentation test (#16595) 7 months ago
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>
7 months ago
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
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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
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If you're adding a new integration, please include:
1. a test for the integration, preferably unit tests that do not rely on
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If no one reviews your PR within a few days, please @-mention one of
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---------

Co-authored-by: Arthur Cheng <arthur.cheng@oracle.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
7 months ago
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>
7 months ago
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>
7 months ago
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>
7 months ago
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>"
)
```
7 months ago
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
7 months ago
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>
7 months ago
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>
7 months ago
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>
7 months ago
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>
7 months ago
Tomaz Bratanic d0a8082188
Fix neo4j sanitize (#16439)
Fix the sanitization bug and add an integration test
7 months ago
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
7 months ago
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>
7 months ago
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
7 months ago
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")
```
7 months ago
Eli Lucherini 6b2a57161a
community[patch]: allow additional kwargs in MlflowEmbeddings for compatibility with Cohere API (#15242)
- **Description:** add support for kwargs in`MlflowEmbeddings`
`embed_document()` and `embed_query()` so that all the arguments
required by Cohere API (and others?) can be passed down to the server.
  - **Issue:** #15234 
- **Dependencies:** MLflow with MLflow Deployments (`pip install
mlflow[genai]`)

**Tests**
Now this code [adapted from the
docs](https://python.langchain.com/docs/integrations/providers/mlflow#embeddings-example)
for the Cohere API works locally.

```python
"""
Setup
-----
export COHERE_API_KEY=...
mlflow deployments start-server --config-path examples/deployments/cohere/config.yaml

Run
---
python /path/to/this/file.py
"""
embeddings = MlflowCohereEmbeddings(target_uri="http://127.0.0.1:5000", endpoint="embeddings")
print(embeddings.embed_query("hello")[:3])
print(embeddings.embed_documents(["hello", "world"])[0][:3])
```

Output
```
[0.060455322, 0.028793335, -0.025848389]
[0.031707764, 0.021057129, -0.009361267]
```
7 months ago
Guillem Orellana Trullols aad2aa7188
community[patch]: BedrockChat -> Support Titan express as chat model (#15408)
Titan Express model was not supported as a chat model because LangChain
messages were not "translated" to a text prompt.

Co-authored-by: Guillem Orellana Trullols <guillem.orellana_trullols@siemens.com>
7 months ago
Katarina Supe 01c2f27ffa
community[patch]: Update Memgraph support (#16360)
- **Description:** I removed two queries to the database and left just
one whose results were formatted afterward into other type of schema
(avoided two calls to DB)
  - **Issue:** /
  - **Dependencies:** /
  - **Twitter handle:** @supe_katarina
7 months ago
Iskren Ivov Chernev fc196cab12
community[minor]: DeepInfra support for chat models (#16380)
Add deepinfra chat models support.

This is https://github.com/langchain-ai/langchain/pull/14234 re-opened
from my branch (so maintainers can edit).
7 months ago
Max Jakob de209af533
community[patch]: ElasticsearchStore: add relevance function selector (#16378)
Implement similarity function selector for ElasticsearchStore. The
scores coming back from Elasticsearch are already similarities (not
distances) and they are already normalized (see
[docs](https://www.elastic.co/guide/en/elasticsearch/reference/current/dense-vector.html#dense-vector-params)).
Hence we leave the scores untouched and just forward them.

This fixes #11539.

However, in hybrid mode (when keyword search and vector search are
involved) Elasticsearch currently returns no scores. This PR adds an
error message around this fact. We need to think a bit more to come up
with a solution for this case.

This PR also corrects a small error in the Elasticsearch integration
test.

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
7 months ago
Bagatur 8779013847
community[patch]: Release 0.0.14 (#16384) 7 months ago
Luke 5396604ef4
community: Handling missing key in Google Trends API response. (#15864)
- **Description:** Handing response where _interest_over_time_ is
missing.
  - **Issue:** #15859
  - **Dependencies:** None
7 months ago
Virat Singh c2a614eddc
community: Add PolygonLastQuote Tool and Toolkit (#15990)
**Description:** 
In this PR, I am adding a `PolygonLastQuote` Tool, which can be used to
get the latest price quote for a given ticker / stock.

Additionally, I've added a Polygon Toolkit, which we can use to
encapsulate future tools that we build for Polygon.

**Twitter handle:** [@virattt](https://twitter.com/virattt)

---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
7 months ago
Carey 021b0484a8
community[patch]: add skipped test for inner product normalization (#14989)
---------

Co-authored-by: Erick Friis <erick@langchain.dev>
7 months ago
Christophe Bornet 3ccbe11363
community[minor]: Add Cassandra document loader (#16215)
- **Description:** document loader for Apache Cassandra
  - **Twitter handle:** cbornet_
7 months ago
Christophe Bornet 3502a407d9
infra: Use dotenv in langchain-community's integration tests (#16137)
* Removed some env vars not used in langchain package IT
* Added Astra DB env vars in langchain package, used for cache tests
* Added conftest.py to load env vars in langchain_community IT
* Added .env.example in  langchain_community IT
7 months ago
Tomaz Bratanic 1e80113ac9
community[patch]: Add neo4j timeout and value sanitization option (#16138)
The timeout function comes in handy when you want to kill longrunning
queries.
The value sanitization removes all lists that are larger than 128
elements. The idea here is to remove embedding properties from results.
7 months ago
Krishna Shedbalkar f238217cea
community[patch]: Basic Logging and Human input to ShellTool (#15932)
- **Description:** As Shell tool is very versatile, while integrating it
into applications as openai functions, developers have no clue about
what command is being executed using the ShellTool. All one can see is:

![image](https://github.com/langchain-ai/langchain/assets/60742358/540e274a-debc-4564-9027-046b91424df3)

Summarising my feature request:
1. There's no visibility about what command was executed.
2. There's no mechanism to prevent a command to be executed using
ShellTool, like a y/n human input which can be accepted from user to
proceed with executing the command.,
  - **Issue:** the issue #15931 it fixes if applicable,
  - **Dependencies:** There isn't any dependancy,
  - **Twitter handle:** @krishnashed
7 months ago
William FH e5cf1e2414
Community[patch]use secret str in Tavily and HuggingFaceInferenceEmbeddings (#16109)
So the api keys don't show up in repr's 

Still need to do tests
7 months ago
William FH f3601b0aaf
Community[Patch] Remove docs form bm25 repr (#16110)
Resolves: https://github.com/langchain-ai/langsmith-sdk/issues/356
7 months ago
Zhichao HAN 5cf06db3b3
community[minor]: add JsonRequestsWrapper tool (#15374)
**Description:** This new feature enhances the flexibility of pipeline
integration, particularly when working with RESTful APIs.
``JsonRequestsWrapper`` allows for the decoding of JSON output, instead
of the only option for text output.

---------

Co-authored-by: Zhichao HAN <hanzhichao2000@hotmail.com>
7 months ago
Karim Lalani 14244bd7e5
community[minor]: Added document loader for SurrealDB (#15995)
Added a simple document loader to work with SurrealDB.
7 months ago
shahrin014 86321a949f
community: Ollama - Parameter structure to follow official documentation (#16035)
## Feature
- Follow parameter structure as per official documentation 
- top level parameters (e.g. model, system, template) will be passed as
top level parameters
  - other parameters will be sent in options unless options is provided

![image](https://github.com/langchain-ai/langchain/assets/17451563/d14715d9-9701-4ee3-b44b-89fffea62389)

## Tests
- Test if top level parameters handled properly
- Test if parameters that are not top level parameters are handled as
options
- Test if options is provided, it will be passed as is
7 months ago
Virat Singh eb6e385dc5
community: Add PolygonAPIWrapper and get_last_quote endpoint (#15971)
- **Description:** Added a `PolygonAPIWrapper` and an initial
`get_last_quote` endpoint, which allows us to get the last price quote
for a given `ticker`. Once merged, I can add a Polygon tool in `tools/`
for agents to use.
- **Twitter handle:** [@virattt](https://twitter.com/virattt)

The Polygon.io Stocks API provides REST endpoints that let you query the
latest market data from all US stock exchanges.
8 months ago
Varik Matevosyan efe6cfafe2
community: Added Lantern as VectorStore (#12951)
Support [Lantern](https://github.com/lanterndata/lantern) as a new
VectorStore type.

- Added Lantern as VectorStore.
It will support 3 distance functions `l2 squared`, `cosine` and
`hamming` and will use `HNSW` index.
- Added tests
- Added example notebook
8 months ago
Raunak e26e1f8b37
community: Added functions to make async calls to HuggingFaceHub's embedding endpoint in HuggingFaceHubEmbeddings class (#15737)
**Description:**
Added aembed_documents() and aembed_query() async functions in
HuggingFaceHubEmbeddings class in
langchain_community\embeddings\huggingface_hub.py file. It will support
to make async calls to HuggingFaceHub's
embedding endpoint and generate embeddings asynchronously.

Test Cases: Added test_huggingfacehub_embedding_async_documents() and
test_huggingfacehub_embedding_async_query()
functions in test_huggingface_hub.py file to test the two async
functions created in HuggingFaceHubEmbeddings class.

Documentation: Updated huggingfacehub.ipynb with steps to install
huggingface_hub package and use
HuggingFaceHubEmbeddings.

**Dependencies:** None,
**Twitter handle:** I do not have a Twitter account

---------

Co-authored-by: H161961 <Raunak.Raunak@Honeywell.com>
8 months ago
Christophe Bornet 81d1ba05dc
Add a BaseStore backed by AstraDB (#15812)
- **Description:** this change adds a `BaseStore` backed by AstraDB
  - **Twitter handle:** cbornet_
8 months ago
shahrin014 bdd90ae2ee
community: Ollama - Pass headers to post request (#15881)
## Feature
- Set additional headers in constructor
- Headers will be sent in post request

This feature is useful if deploying Ollama on a cloud service such as
hugging face, which requires authentication tokens to be passed in the
request header.

## Tests
- Test if header is passed
- Test if header is not passed
8 months ago
Xin Liu 5efec068c9
feat: Implement `stream` interface (#15875)
<!-- Thank you for contributing to LangChain!

Please title your PR "<package>: <description>", where <package> is
whichever of langchain, community, core, experimental, etc. is being
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Replace this entire comment with:
  - **Description:** a description of the change, 
  - **Issue:** the issue # it fixes if applicable,
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See contribution guidelines for more information on how to write/run
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If you're adding a new integration, please include:
1. a test for the integration, preferably unit tests that do not rely on
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2. an example notebook showing its use. It lives in
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If no one reviews your PR within a few days, please @-mention one of
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 -->

Major changes:

- Rename `wasm_chat.py` to `llama_edge.py`
- Rename the `WasmChatService` class to `ChatService`
- Implement the `stream` interface for `ChatService`
- Add `test_chat_wasm_service_streaming` in the integration test
- Update `llama_edge.ipynb`

---------

Signed-off-by: Xin Liu <sam@secondstate.io>
8 months ago
NuODaniel 70b6315b23
community[patch]: fix qianfan chat stream calling caused exception (#13800)
- **Description:** 
`QianfanChatEndpoint` extends `BaseChatModel` as a super class, which
has a default stream implement might concat the MessageChunk with
`__add__`. When call stream(), a ValueError for duplicated key will be
raise.
  - **Issues:** 
     * #13546  
     * #13548
     * merge two single test file related to qianfan.
  - **Dependencies:** no
  - **Tag maintainer:**

---------

Co-authored-by: root <liujun45@baidu.com>
Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
8 months ago
Christophe Bornet a466f79ac9
Fix AstraDB logical operator filtering (#15699)
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This change fixes the AstraDB logical operator filtering (`$and,`
`$or`).
The `metadata` prefix must not be added if the key is `$and` or `$or`.
8 months ago
Christophe Bornet 1f5f6381ec
Add doc for AstraDB document loader (#15703)
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Please title your PR "<package>: <description>", where <package> is
whichever of langchain, community, core, experimental, etc. is being
modified.

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  - **Issue:** the issue # it fixes if applicable,
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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
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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
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2. an example notebook showing its use. It lives in
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See preview :
https://langchain-git-fork-cbornet-astra-loader-doc-langchain.vercel.app/docs/integrations/document_loaders/astradb
8 months ago
Erick Friis ebc75c5ca7
openai[minor]: implement langchain-openai package (#15503)
Todo

- [x] copy over integration tests
- [x] update docs with new instructions in #15513 
- [x] add linear ticket to bump core -> community, community->langchain,
and core->openai deps
- [ ] (optional): add `pip install langchain-openai` command to each
notebook using it
- [x] Update docstrings to not need `openai` install
- [x] Add serialization
- [x] deprecate old models

Contributor steps:

- [x] Add secret names to manual integrations workflow in
.github/workflows/_integration_test.yml
- [x] Add secrets to release workflow (for pre-release testing) in
.github/workflows/_release.yml

Maintainer steps (Contributors should not do these):

- [x] set up pypi and test pypi projects
- [x] add credential secrets to Github Actions
- [ ] add package to conda-forge


Functional changes to existing classes:

- now relies on openai client v1 (1.6.1) via concrete dep in
langchain-openai package

Codebase organization

- some function calling stuff moved to
`langchain_core.utils.function_calling` in order to be used in both
community and langchain-openai
8 months ago
Bagatur b2f15738dd
core[patch], langchain[patch], community[patch]: Revert #15326 (#15546) 8 months ago
Bagatur baeac236b6
langchain[patch], experimental[patch]: update utilities imports (#15438) 8 months ago