o Zh2 @szdZddlZddlZddlmZmZmZmZmZm Z ddl m Z m Z ddl mZddlmZeeZGdddeZdS) z-Chain that runs an arbitrary python function.N)Any AwaitableCallableDictListOptional)AsyncCallbackManagerForChainRunCallbackManagerForChainRun)Field)Chainc @s8eZdZUdZeeed< eeed< eddZe e eefge eeffed< edddZ e e e ee fgee ee ffed < eejd ed dfd d Zed eefddZed eefddZ dde eefde ed e eeffddZ dde ee fde ed e ee ffddZdS)TransformChainaChain that transforms the chain output. Example: .. code-block:: python from langchain.chains import TransformChain transform_chain = TransformChain(input_variables=["text"], output_variables["entities"], transform=func()) input_variablesoutput_variablesZ transform)alias transform_cbNZ atransform atransform_cbmsgreturncCst|dS)z4Log a message once. :meta private: N)loggerwarning)rrQ/var/www/html/lang_env/lib/python3.10/site-packages/langchain/chains/transform.py _log_once(szTransformChain._log_oncecC|jS)z3Expect input keys. :meta private: )r selfrrr input_keys1zTransformChain.input_keyscCr)z4Return output keys. :meta private: )rrrrr output_keys9rzTransformChain.output_keysinputs run_managercCs ||SN)rrrr rrr_callAs zTransformChain._callcs0|jdur||IdHS|d||S)NzRTransformChain's atransform is not provided, falling back to synchronous transform)rrrr"rrr_acallHs  zTransformChain._acallr!)__name__ __module__ __qualname____doc__rstr__annotations__r rrrrrrr staticmethod functools lru_cacherpropertyrrr r#rr$rrrrr sD   , ,       r )r(r,loggingtypingrrrrrrZlangchain_core.callbacksrr Zpydanticr Zlangchain.chains.baser getLoggerr%rr rrrrs