Commit Graph

7 Commits

Author SHA1 Message Date
Eugene Yurtsev
2900720cd3
core[patch]: Update documentation for base retriever (#20345)
Updating in code documentation for base retriever to direct folks toward
the .invoke and .ainvoke methods + explain how to implement
2024-04-11 16:20:14 -04:00
William FH
780337488e
[Enhancement] Add support for directly providing a run_id (#18990)
The root run id (~trace id's) is useful for assigning feedback, but the
current recommended approach is to use callbacks to retrieve it, which
has some drawbacks:
1. Doesn't work for streaming until after the first event
2. Doesn't let you call other endpoints with the same trace ID in
parallel (since you have to wait until the call is completed/started to
use

This PR lets you provide = "run_id" in the runnable config.

Couple considerations:

1. For batch calls, we split the trace up into separate trees (to permit
better rendering). We keep the provided run ID for the first one and
generate a unique one for other elements of the batch.
2. For nested calls, the provided ID is ONLY used on the top root/trace.



### Example Usage


```
chain.invoke("foo", {"run_id": uuid.uuid4()})
```
2024-03-18 15:03:04 -07:00
Leonid Ganeline
2f2b77602e
docs: modules descriptions (#17844)
Several `core` modules do not have descriptions, like the
[agent](https://api.python.langchain.com/en/latest/core_api_reference.html#module-langchain_core.agents)
module.
- Added missed module descriptions. The descriptions are mostly copied
from the `langchain` or `community` package modules.
2024-02-21 15:58:21 -08:00
Bagatur
e510cfaa23
core[patch]: passthrough BaseRetriever.invoke(**kwargs) (#16551)
Fix for #16547
2024-01-25 08:58:39 -08:00
Nuno Campos
eb5e250188 Propagate context vars in all classes/methods
- Any direct usage of ThreadPoolExecutor or asyncio.run_in_executor needs manual handling of context vars
2023-12-29 12:34:03 -08:00
Nuno Campos
f36ef0739d
Add create_conv_retrieval_chain func (#15084)
```
                                                     +----------+
                                                     | MapInput |
                                                   **+----------+****
                                               ****                  ****
                                           ****                          ***
                                         **                                 ****
                  +------------------------------------+                        **
                  | Lambda(itemgetter('chat_history')) |                         *
                  +------------------------------------+                         *
                                     *                                           *
                                     *                                           *
                                     *                                           *
                       +---------------------------+            +--------------------------------+
                       | Lambda(_get_chat_history) |            | Lambda(itemgetter('question')) |
                       +---------------------------+            +--------------------------------+
                                     *                                           *
                                     *                                           *
                                     *                                           *
                      +----------------------------+                +------------------------+
                      | ContextSet('chat_history') |                | ContextSet('question') |
                      +----------------------------+                +------------------------+
                                               ****                  ****
                                                   ****          ****
                                                       **      **
                                                     +-----------+
                                                     | MapOutput |
                                                     +-----------+
                                                           *
                                                           *
                                                           *
                                                  +----------------+
                                                  | PromptTemplate |
                                                  +----------------+
                                                           *
                                                           *
                                                           *
                                                    +-------------+
                                                    | FakeListLLM |
                                                    +-------------+
                                                           *
                                                           *
                                                           *
                                                  +-----------------+
                                                  | StrOutputParser |
                                                  +-----------------+
                                                           *
                                                           *
                                                           *
                                            +----------------------------+
                                            | ContextSet('new_question') |
                                            +----------------------------+
                                                           *
                                                           *
                                                           *
                                                +---------------------+
                                                | SequentialRetriever |
                                                +---------------------+
                                                           *
                                                           *
                                                           *
                                        +------------------------------------+
                                        | Lambda(_reduce_tokens_below_limit) |
                                        +------------------------------------+
                                                           *
                                                           *
                                                           *
                                           +-------------------------------+
                                           | ContextSet('input_documents') |
                                           +-------------------------------+
                                                           *
                                                           *
                                                           *
                                                     +----------+
                                                  ***| MapInput |****
                                           *******   +----------+    ********
                                   ********                *                 *******
                            *******                         *                       ********
                        ****                                *                               ****
+-------------------------------+            +----------------------------+            +----------------------------+
| ContextGet('input_documents') |            | ContextGet('chat_history') |            | ContextGet('new_question') |
+-------------------------------+****        +----------------------------+            +----------------------------+
                                     *********                *                 *******
                                              ********         *          ******
                                                      *****    *      ****
                                                         +-----------+
                                                         | MapOutput |
                                                         +-----------+
                                                                *
                                                                *
                                                                *
                                                        +-------------+
                                                        | FakeListLLM |
                                                        +-------------+
                                                                *
                                                                *
                                                                *
                                                          +----------+
                                                       ***| MapInput |***
                                               ********   +----------+   ******
                                        *******                 *              *****
                                ********                        *                   ******
                            ****                                *                         ***
    +-------------------------------+            +----------------------------+            +-------------+
    | ContextGet('input_documents') |            | ContextGet('new_question') |          **| Passthrough |
    +-------------------------------+            +----------------------------+   *******  +-------------+
                                     *******                 *              ******
                                            ******           *       *******
                                                  ****      *    ****
                                                     +-----------+
                                                     | MapOutput |
                                                     +-----------+
```

---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2023-12-26 17:28:10 -08:00
Bagatur
d32e511826
REFACTOR: Refactor langchain_core (#13627)
Changes:
- remove langchain_core/schema since no clear distinction b/n schema and
non-schema modules
- make every module that doesn't end in -y plural
- where easy have 1-2 classes per file
- no more than one level of nesting in directories
- only import from top level core modules in langchain
2023-11-21 08:35:29 -08:00