export declare function Graphhopper(label?: string, options?: Record<string, unknown>): import("../index.ts").Node;
export declare function Osrm(label?: string, options?: Record<string, unknown>): import("../index.ts").Node;
export declare function Pgrouting(label?: string, options?: Record<string, unknown>): import("../index.ts").Node;
export declare function Valhalla(label?: string, options?: Record<string, unknown>): import("../index.ts").Node;