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from typing import Dict, List, Tuple, Union, Optional
from langchain.agents import AgentExecutor
from langchain.schema import AgentAction, AgentFinish, OutputParserException
from langchain.tools import BaseTool
from langchain.callbacks.manager import CallbackManagerForChainRun
class ExceptionTool(BaseTool):
name: str = "_Exception"
description: str = "Exception tool"
def _run(self, query: str) :
return query
async def _arun(self, query: str) :
return query
class RetryAgentExecutor(AgentExecutor):
"""Agent executor that retries on output parser exceptions."""
# for backwards compatibility
handle_parsing_errors: bool = True
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