@hWbSrSSKJr SSKJr SSKJrJrJrJ r SSK J r SSK J r SSKJr SSKJr SS KJrJr SS KJr SS KJr SS KJr SS KJrJrJr SSKJ r SSK!J"r" SSK#J$r$J%r%J&r& SSK'J(r( SSK)J*r* "SS\5r+\ "S\SS9"SS\55r,\ "S\SS9"SS\55r-g)zOAttempt to implement MRKL systems as described in arxiv.org/pdf/2205.00445.pdf.) annotations)Sequence)AnyCallable NamedTupleOptional) deprecated)BaseCallbackManager)BaseLanguageModel)PromptTemplate)BaseToolTool)render_text_description)Field)AGENT_DEPRECATION_WARNING)Agent AgentExecutorAgentOutputParser) AgentTypeMRKLOutputParser)FORMAT_INSTRUCTIONSPREFIXSUFFIX)validate_tools_single_input)LLMChainc8\rSrSr%SrS\S'S\S'S\S'Srg ) ChainConfigzConfiguration for a chain to use in MRKL system. Parameters: action_name: Name of the action. action: Action function to call. action_description: Description of the action. str action_nameractionaction_descriptionN)__name__ __module__ __qualname____firstlineno____doc____annotations____static_attributes__r$R/var/www/html/shao/venv/lib/python3.13/site-packages/langchain/agents/mrkl/base.pyrrs r,rz0.1.0z1.0)messageremovalc"^\rSrSr%Sr\"\S9rS\S'\ SSj5r \ SSj5r \ SSj5r \ SS j5r\ \\\S 4SS jj5r\ S S \\\S 4SS jj5r\ SU4S jj5rSrU=r$) ZeroShotAgent'zWAgent for the MRKL chain. Parameters: output_parser: Output parser for the agent. )default_factoryr output_parserc [5$)Nr)clskwargss r-_get_default_output_parser(ZeroShotAgent._get_default_output_parser5s !!r,c"[R$)z Return Identifier of agent type.)rZERO_SHOT_REACT_DESCRIPTIONselfs r- _agent_typeZeroShotAgent._agent_type9s444r,cg)zEPrefix to append the observation with. Returns: "Observation: " z Observation: r$r<s r-observation_prefix ZeroShotAgent.observation_prefix>sr,cg)z>Prefix to append the llm call with. Returns: "Thought: " zThought:r$r<s r- llm_prefixZeroShotAgent.llm_prefixGsr,Nc [[U55nSRUVs/sHowRPM sn5nUR US9nUSUSUSU3n U(a [ XS9$[ R "U 5$s snf)aACreate prompt in the style of the zero shot agent. Args: tools: List of tools the agent will have access to, used to format the prompt. prefix: String to put before the list of tools. Defaults to PREFIX. suffix: String to put after the list of tools. Defaults to SUFFIX. format_instructions: Instructions on how to use the tools. Defaults to FORMAT_INSTRUCTIONS input_variables: List of input variables the final prompt will expect. Defaults to None. Returns: A PromptTemplate with the template assembled from the pieces here. z, ) tool_namesz )templateinput_variables)rlistjoinnameformatr from_template) r6toolsprefixsuffixformat_instructionsrI tool_stringstoolrGrHs r- create_promptZeroShotAgent.create_promptPs0/tE{; YYe[URU5 [U5S:XaSURS3n[U5eUH+nURbMSUR S3n[U5e [ TU]U5 g)NrzGot no tools for z%. At least one tool must be provided.z Got a tool zN without a description. For this agent, a description must always be provided.)rr%len ValueError descriptionrLsuperr])r6rOmsgrT __class__s r-r]ZeroShotAgent._validate_toolss#CLL%8 u:?#CLL>1VW S/ !D'!$))-=>!o%  &r,r$)r7rreturnr)rir ) rOSequence[BaseTool]rPr rQr rRr rIOptional[list[str]]rir )rXr rOrjrZzOptional[BaseCallbackManager]r4zOptional[AgentOutputParser]rPr rQr rRr rIrkr7rrir)rOrjriNone)r%r&r'r(r)rrr4r* classmethodr8propertyr>rArDrrrrUr_r]r+ __classcell__)rgs@r-r1r1'sd  (-=M'NM$N""55#6/3 6!66 6 ! 6 - 6 66> ;?59#6/3. . ". 8 . 3 .  . . !. -. .  . . `''r,r1c<\rSrSrSr\SSj5rSrg) MRKLChainz&Chain that implements the MRKL system.c UVs/sH,n[URURURS9PM. nn[R X5nU"SXeS.UD6$s snf)aHUser-friendly way to initialize the MRKL chain. This is intended to be an easy way to get up and running with the MRKL chain. Args: llm: The LLM to use as the agent LLM. chains: The chains the MRKL system has access to. **kwargs: parameters to be passed to initialization. Returns: An initialized MRKL chain. )rLfuncrd)agentrOr$)rr!r"r#r1r_)r6rXchainsr7crOrus r- from_chainsMRKLChain.from_chainssn4   ]]XX00    00<66v66 s2Ar$N)rXr rvzlist[ChainConfig]r7rrir)r%r&r'r(r)rmrxr+r$r,r-rqrqs? 17 7"7 7  77r,rqN).r) __future__rcollections.abcrtypingrrrrlangchain_core._apir langchain_core.callbacksr langchain_core.language_modelsr langchain_core.promptsr langchain_core.toolsr rlangchain_core.tools.renderrpydanticrlangchain._api.deprecationrlangchain.agents.agentrrrlangchain.agents.agent_typesr#langchain.agents.mrkl.output_parserrlangchain.agents.mrkl.promptrrrlangchain.agents.utilsrlangchain.chainsrrr1rqr$r,r-rsU"$66*8<1/?@JJ2@LL>% *   %  D'ED'  D'N  %  7 7  7r,