import { FastifyRequest } from 'fastify';
import { AuthModuleOptions, AuthStrategy } from '../types';
/**
 * Validates credentials against Google Booking Server configuration.
 */
export declare class GoogleBookingServerAuthStrategy implements AuthStrategy {
    readonly options: AuthModuleOptions;
    constructor(options: AuthModuleOptions);
    validate(request: FastifyRequest): Promise<unknown>;
    private extractCredentials;
}