tj& ddlmZddlmZddlmZddlmZmZddl m Z ddl m Z ddl mZddlmZ dd ed ee d ed ed zdef dZd S))Sequence)BaseLanguageModel)ChatPromptTemplate)RunnableRunnablePassthrough)BaseToolconvert_to_openai_toolformat_to_openai_tool_messages)OpenAIToolsAgentOutputParserNllmtoolspromptstrictreturnc*dh|jt|jz}|rd|}t ||fd|D}t jd|z|ztzS)aCreate an agent that uses OpenAI tools. Args: llm: LLM to use as the agent. tools: Tools this agent has access to. prompt: The prompt to use. See Prompt section below for more on the expected input variables. strict: Whether strict mode should be used for OpenAI tools. Returns: A Runnable sequence representing an agent. It takes as input all the same input variables as the prompt passed in does. It returns as output either an AgentAction or AgentFinish. Raises: ValueError: If the prompt is missing required variables. Example: ```python from langchain_classic import hub from langchain_openai import ChatOpenAI from langchain_classic.agents import ( AgentExecutor, create_openai_tools_agent, ) prompt = hub.pull("hwchase17/openai-tools-agent") model = ChatOpenAI() tools = ... agent = create_openai_tools_agent(model, tools, prompt) agent_executor = AgentExecutor(agent=agent, tools=tools) agent_executor.invoke({"input": "hi"}) # Using with chat history from langchain_core.messages import AIMessage, HumanMessage agent_executor.invoke( { "input": "what's my name?", "chat_history": [ HumanMessage(content="hi! my name is bob"), AIMessage(content="Hello Bob! How can I assist you today?"), ], } ) ``` Prompt: The agent prompt must have an `agent_scratchpad` key that is a `MessagesPlaceholder`. Intermediate agent actions and tool output messages will be passed in here. Here's an example: ```python from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder prompt = ChatPromptTemplate.from_messages( [ ("system", "You are a helpful assistant"), MessagesPlaceholder("chat_history", optional=True), ("human", "{input}"), MessagesPlaceholder("agent_scratchpad"), ] ) ``` agent_scratchpadz#Prompt missing required variables: c2g|]}t|S))rr ).0toolrs h/var/www/html/CA-Chatbot/venv/lib/python3.11/site-packages/langchain_classic/agents/openai_tools/base.py z-create_openai_tools_agent..es'MMMt%d6:::MMM)rc,t|dS)Nintermediate_stepsr )xs rz+create_openai_tools_agent..js'E&'((r)r) differenceinput_variableslistpartial_variables ValueErrorbindrassignr )rrrr missing_varsmsgllm_with_toolss ` rcreate_openai_tools_agentr)sX''22f&>!?!??LBLBBooXXMMMMuMMMN "         ' ( ( ) r)N)collections.abcrlangchain_core.language_modelsrlangchain_core.prompts.chatrlangchain_core.runnablesrrlangchain_core.toolsr%langchain_core.utils.function_callingr 7langchain_classic.agents.format_scratchpad.openai_toolsr 4langchain_classic.agents.output_parsers.openai_toolsr boolr)rrr4s$$$$$$<<<<<<::::::BBBBBBBB))))))HHHHHH `` ` H ` ` 4K `  ``````r