import { StructuredTool } from "@langchain/core/tools";
import { InferInteropZodOutput } from "@langchain/core/utils/types";
import { z } from "zod";
/**
 * Interface for parameter s required by GoogleRoutesAPI class.
 */
export interface GoogleRoutesAPIParams {
    apiKey?: string;
}
declare const defaultGoogleRoutesSchema: z.ZodObject<{
    origin: z.ZodString;
    destination: z.ZodString;
    travel_mode: z.ZodEnum<["DRIVE", "WALK", "BICYCLE", "TRANSIT", "TWO_WHEELER"]>;
    computeAlternativeRoutes: z.ZodBoolean;
    departureTime: z.ZodOptional<z.ZodString>;
    arrivalTime: z.ZodOptional<z.ZodString>;
    transitPreferences: z.ZodOptional<z.ZodObject<{
        routingPreference: z.ZodEnum<["LESS_WALKING", "FEWER_TRANSFERS"]>;
    }, "strip", z.ZodTypeAny, {
        routingPreference: "LESS_WALKING" | "FEWER_TRANSFERS";
    }, {
        routingPreference: "LESS_WALKING" | "FEWER_TRANSFERS";
    }>>;
    extraComputations: z.ZodOptional<z.ZodArray<z.ZodEnum<["TOLLS"]>, "many">>;
}, "strip", z.ZodTypeAny, {
    origin: string;
    destination: string;
    travel_mode: "TRANSIT" | "DRIVE" | "WALK" | "BICYCLE" | "TWO_WHEELER";
    computeAlternativeRoutes: boolean;
    departureTime?: string | undefined;
    arrivalTime?: string | undefined;
    transitPreferences?: {
        routingPreference: "LESS_WALKING" | "FEWER_TRANSFERS";
    } | undefined;
    extraComputations?: "TOLLS"[] | undefined;
}, {
    origin: string;
    destination: string;
    travel_mode: "TRANSIT" | "DRIVE" | "WALK" | "BICYCLE" | "TWO_WHEELER";
    computeAlternativeRoutes: boolean;
    departureTime?: string | undefined;
    arrivalTime?: string | undefined;
    transitPreferences?: {
        routingPreference: "LESS_WALKING" | "FEWER_TRANSFERS";
    } | undefined;
    extraComputations?: "TOLLS"[] | undefined;
}>;
/**
 * Class for interacting with the Google Routes API
 * It extends the StructuredTool class to perform retrieval.
 */
export declare class GoogleRoutesAPI extends StructuredTool {
    static lc_name(): string;
    get lc_secrets(): {
        [key: string]: string;
    } | undefined;
    name: string;
    description: string;
    protected apiKey: string;
    schema: typeof defaultGoogleRoutesSchema;
    constructor(fields?: GoogleRoutesAPIParams);
    _call(input: InferInteropZodOutput<typeof GoogleRoutesAPI.prototype.schema>): Promise<string>;
}
export {};