Interface ToolInterface

Base interface implemented by all runnables. Used for cross-compatibility between different versions of LangChain core.

Should not change on patch releases.

interface ToolInterface {
    description: string;
    name: string;
    returnDirect: boolean;
    schema: ZodAny | ZodEffects<ZodAny, any, {}>;
    batch(inputs, options?, batchOptions?): Promise<string[]>;
    batch(inputs, options?, batchOptions?): Promise<(string | Error)[]>;
    batch(inputs, options?, batchOptions?): Promise<(string | Error)[]>;
    call(arg, callbacks?): Promise<string>;
    getName(suffix?): string;
    invoke(input, options?): Promise<string>;
    stream(input, options?): Promise<IterableReadableStreamInterface<string>>;
    transform(generator, options): AsyncGenerator<string, any, unknown>;
}

Hierarchy (view full)

Properties

description name returnDirect schema

Methods

batch call getName invoke stream transform

Properties

description

description: string

name

name: string

returnDirect

returnDirect: boolean

schema

schema: ZodAny | ZodEffects<ZodAny, any, {}>

Methods

batch

call

  • call(arg, callbacks?): Promise<string>

  • Parameters

    • arg: undefined | string | {}

      The input argument for the tool, which can be a string, undefined, or an input of the tool's schema.

    • Optional callbacks: CallbackManager | (BaseCallbackHandlerMethodsClass | BaseCallbackHandler)[] | RunnableConfig

      Optional callbacks for the tool.

    Returns Promise<string>

    A Promise that resolves with a string.

    ⚠️ Deprecated ⚠️

    Use .invoke() instead. Will be removed in 0.3.0.

    This feature is deprecated and will be removed in the future.

    It is not recommended for use.

    Calls the tool with the provided argument and callbacks. It handles string inputs specifically.

getName

invoke

stream

transform

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