import { Tool, ToolParams } from "@langchain/core/tools";
/**
 * Interface for AWS Step Functions configuration.
 */
export interface SfnConfig {
    stateMachineArn: string;
    region?: string;
    accessKeyId?: string;
    secretAccessKey?: string;
}
/**
 * Class for starting the execution of an AWS Step Function.
 */
export declare class StartExecutionAWSSfnTool extends Tool {
    static lc_name(): string;
    private sfnConfig;
    name: string;
    description: string;
    constructor({ name, description, ...rest }: SfnConfig & {
        name: string;
        description: string;
    });
    /**
     * Generates a formatted description for the StartExecutionAWSSfnTool.
     * @param name Name of the state machine.
     * @param description Description of the state machine.
     * @returns A formatted description string.
     */
    static formatDescription(name: string, description: string): string;
    /** @ignore */
    _call(input: string): Promise<string>;
}
/**
 * Class for checking the status of an AWS Step Function execution.
 */
export declare class DescribeExecutionAWSSfnTool extends Tool {
    static lc_name(): string;
    name: string;
    description: string;
    sfnConfig: Omit<SfnConfig, "stateMachineArn">;
    constructor(config: Omit<SfnConfig, "stateMachineArn"> & ToolParams);
    /** @ignore */
    _call(input: string): Promise<string>;
}
/**
 * Class for sending a task success signal to an AWS Step Function
 * execution.
 */
export declare class SendTaskSuccessAWSSfnTool extends Tool {
    static lc_name(): string;
    name: string;
    description: string;
    sfnConfig: Omit<SfnConfig, "stateMachineArn">;
    constructor(config: Omit<SfnConfig, "stateMachineArn"> & ToolParams);
    /** @ignore */
    _call(input: string): Promise<string>;
}