import { Route } from './route.js';
import { HttpRouteCollection, RouteObjectAttributes } from '@supercharge/contracts';
export declare class RouteCollection implements HttpRouteCollection {
    /**
     * Stores all registered routes.
     */
    private routes;
    /**
     * Create a new instance.
     */
    constructor();
    /**
     * Register a new route to the collection.
     */
    add(route: Route | Route[]): Route | Route[];
    /**
     * Returns all registered routes.
     */
    all(): Route[];
    /**
     * Clear all registered routes.
     */
    clear(): this;
    /**
     * Returns the number of routes registerd to this route collection.
     */
    count(): number;
    /**
     * Returns the attributes of all routes.
     */
    toJSON(): RouteObjectAttributes[];
}