langchain.js
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    Class OpenAIAgentTokenBufferMemory

    Memory used to save agent output and intermediate steps.

    Hierarchy (View Summary)

    Index

    Constructors

    constructor

    Properties

    aiPrefix chatHistory humanPrefix inputKey? intermediateStepsKey llm maxTokenLimit memoryKey outputKey returnMessages

    Accessors

    memoryKeys

    Methods

    clear getMessages loadMemoryVariables saveContext

    Constructors

    Properties

    aiPrefix: string = "AI"
    chatHistory: BaseChatMessageHistory
    humanPrefix: string = "Human"
    inputKey?: string
    intermediateStepsKey: string = "intermediateSteps"
    llm: ChatOpenAI
    maxTokenLimit: number = 12000
    memoryKey: string = "history"
    outputKey: string = "output"
    returnMessages: boolean = true

    Accessors

    • get memoryKeys(): string[]

      Returns string[]

    Methods

    • Method to clear the chat history.

      Returns Promise<void>

      Promise that resolves when the chat history has been cleared.

    • Retrieves the messages from the chat history.

      Returns Promise<any>

      Promise that resolves with the messages from the chat history.

    • Loads memory variables from the input values.

      Parameters

      • _values: InputValues

        Input values.

      Returns Promise<MemoryVariables>

      Promise that resolves with the loaded memory variables.

    • Saves the context of the chat, including user input, AI output, and intermediate steps. Prunes the chat history if the total token count exceeds the maximum limit.

      Parameters

      • inputValues: InputValues

        Input values.

      • outputValues: OutputValues

        Output values.

      Returns Promise<void>

      Promise that resolves when the context has been saved.

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