import { Serializable } from "@langchain/core/load/serializable";
import { Tool, ToolParams } from "@langchain/core/tools";
export type Json = string | number | boolean | null | {
    [key: string]: Json;
} | Json[];
export type JsonObject = {
    [key: string]: Json;
};
/**
 * Represents a JSON object in the LangChain framework. Provides methods
 * to get keys and values from the JSON object.
 */
export declare class JsonSpec extends Serializable {
    lc_namespace: string[];
    obj: JsonObject;
    maxValueLength: number;
    constructor(obj: JsonObject, max_value_length?: number);
    /**
     * Retrieves all keys at a given path in the JSON object.
     * @param input The path to the keys in the JSON object, provided as a string in JSON pointer syntax.
     * @returns A string containing all keys at the given path, separated by commas.
     */
    getKeys(input: string): string;
    /**
     * Retrieves the value at a given path in the JSON object.
     * @param input The path to the value in the JSON object, provided as a string in JSON pointer syntax.
     * @returns The value at the given path in the JSON object, as a string. If the value is a large dictionary or exceeds the maximum length, a message is returned instead.
     */
    getValue(input: string): string;
}
export interface JsonToolFields extends ToolParams {
    jsonSpec: JsonSpec;
}
/**
 * A tool in the LangChain framework that lists all keys at a given path
 * in a JSON object.
 */
export declare class JsonListKeysTool extends Tool {
    static lc_name(): string;
    name: string;
    jsonSpec: JsonSpec;
    constructor(jsonSpec: JsonSpec);
    constructor(fields: JsonToolFields);
    /** @ignore */
    _call(input: string): Promise<string>;
    description: string;
}
/**
 * A tool in the LangChain framework that retrieves the value at a given
 * path in a JSON object.
 */
export declare class JsonGetValueTool extends Tool {
    jsonSpec: JsonSpec;
    static lc_name(): string;
    name: string;
    constructor(jsonSpec: JsonSpec);
    /** @ignore */
    _call(input: string): Promise<string>;
    description: string;
}