a ag9@sdZddlmZddlZddlmZmZmZmZddl m Z ddl m Z ddl mZddl mZdd lmZdd lmZdd lmZdd lmZmZdd lmZddlmZe ddddGdddeZedS)z Implement an LLM driven browser.) annotationsN)AnyDictListOptional) deprecated) BaseCache)CallbackManagerForChainRun) Callbacks)BaseLanguageModel)StrOutputParser)Runnable) ConfigDictmodel_validator)Chain)PROMPTz0.2.13zImporting NatBotChain from langchain is deprecated and will be removed in langchain 1.0. Please import from langchain_community instead: from langchain_community.chains.natbot import NatBotChain. You may need to pip install -U langchain-community.z1.0)ZsincemessageZremovalc@seZdZUdZded<ded<dZded<d Zded <d Zded <d Zded<dZ ded<e dddZ e dde dddddZe ddddddZe dddddd d!Zed"d#d$d%Zed"d#d&d'Zd2d(d)d(d*d+d,Zdddd-d.d/Zedd#d0d1ZdS)3 NatBotChainaImplement an LLM driven browser. **Security Note**: This toolkit provides code to control a web-browser. The web-browser can be used to navigate to: - Any URL (including any internal network URLs) - And local files Exercise care if exposing this chain to end-users. Control who is able to access and use this chain, and isolate the network access of the server that hosts this chain. See https://python.langchain.com/docs/security for more information. Example: .. code-block:: python from langchain.chains import NatBotChain natbot = NatBotChain.from_default("Buy me a new hat.") r llm_chainstr objectiveNzOptional[BaseLanguageModel]llmurl input_url_keybrowser_contentinput_browser_content_keyprevious_commandcommand output_keyTZforbid)Zarbitrary_types_allowedextrabefore)moderr)valuesreturncCs@d|vrs*