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langchain/langchain/__init__.py

77 lines
1.9 KiB
Python

"""Main entrypoint into package."""
from typing import Optional
from langchain.agents import MRKLChain, ReActChain, SelfAskWithSearchChain
from langchain.cache import BaseCache
from langchain.callbacks import (
set_default_callback_manager,
set_handler,
set_tracing_callback_manager,
)
from langchain.chains import (
ConversationChain,
LLMBashChain,
LLMChain,
LLMCheckerChain,
LLMMathChain,
PALChain,
QAWithSourcesChain,
SQLDatabaseChain,
VectorDBQA,
VectorDBQAWithSourcesChain,
)
from langchain.docstore import InMemoryDocstore, Wikipedia
from langchain.llms import Cohere, HuggingFaceHub, OpenAI
from langchain.llms.huggingface_pipeline import HuggingFacePipeline
from langchain.prompts import (
BasePromptTemplate,
FewShotPromptTemplate,
Prompt,
PromptTemplate,
)
from langchain.serpapi import SerpAPIChain, SerpAPIWrapper
from langchain.sql_database import SQLDatabase
from langchain.utilities.google_search import GoogleSearchAPIWrapper
from langchain.utilities.wolfram_alpha import WolframAlphaAPIWrapper
from langchain.vectorstores import FAISS, ElasticVectorSearch
verbose: bool = False
llm_cache: Optional[BaseCache] = None
set_default_callback_manager()
__all__ = [
"LLMChain",
"LLMBashChain",
"LLMCheckerChain",
"LLMMathChain",
"SelfAskWithSearchChain",
"SerpAPIWrapper",
"SerpAPIChain",
"GoogleSearchAPIWrapper",
"WolframAlphaAPIWrapper",
"Cohere",
"OpenAI",
"BasePromptTemplate",
"Prompt",
"FewShotPromptTemplate",
"PromptTemplate",
"ReActChain",
"Wikipedia",
"HuggingFaceHub",
"HuggingFacePipeline",
"SQLDatabase",
"SQLDatabaseChain",
"FAISS",
"MRKLChain",
"VectorDBQA",
"ElasticVectorSearch",
"InMemoryDocstore",
"ConversationChain",
"VectorDBQAWithSourcesChain",
"QAWithSourcesChain",
"PALChain",
"set_handler",
"set_tracing_callback_manager",
]