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"""**Schemas** are the LangChain Base Classes and Interfaces."""
from langchain_core.agents import AgentAction, AgentFinish
from langchain_core.caches import BaseCache
from langchain_core.chat_history import BaseChatMessageHistory
from langchain_core.documents import BaseDocumentTransformer, Document
from langchain_core.exceptions import LangChainException, OutputParserException
from langchain_core.memory import BaseMemory
from langchain_core.messages import (
AIMessage,
BaseMessage,
ChatMessage,
FunctionMessage,
HumanMessage,
SystemMessage,
_message_from_dict,
get_buffer_string,
messages_from_dict,
messages_to_dict,
)
from langchain_core.messages.base import message_to_dict
from langchain_core.output_parsers import (
BaseLLMOutputParser,
BaseOutputParser,
StrOutputParser,
)
from langchain_core.outputs import (
ChatGeneration,
ChatResult,
Generation,
LLMResult,
RunInfo,
)
from langchain_core.prompt_values import PromptValue
from langchain_core.prompts import BasePromptTemplate, format_document
from langchain_core.retrievers import BaseRetriever
from langchain_core.stores import BaseStore
RUN_KEY = "__run"
# Backwards compatibility.
Memory = BaseMemory
_message_to_dict = message_to_dict
__all__ = [
"BaseCache",
"BaseMemory",
"BaseStore",
"AgentFinish",
"AgentAction",
"Document",
"BaseChatMessageHistory",
"BaseDocumentTransformer",
"BaseMessage",
"ChatMessage",
"FunctionMessage",
"HumanMessage",
"AIMessage",
"SystemMessage",
"messages_from_dict",
"messages_to_dict",
"message_to_dict",
"_message_to_dict",
"_message_from_dict",
"get_buffer_string",
"RunInfo",
"LLMResult",
"ChatResult",
"ChatGeneration",
"Generation",
"PromptValue",
"LangChainException",
"BaseRetriever",
"RUN_KEY",
"Memory",
"OutputParserException",
"StrOutputParser",
"BaseOutputParser",
"BaseLLMOutputParser",
"BasePromptTemplate",
"format_document",
]
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