import { Guard } from "../route/guard"; export declare function typeAssertionError(context: string, expected: string): TypeError; export declare function guardError(reason: string): Error; export declare function assertGuard(instance: any, context: string): Guard; export declare function cleanRouteParam(string: string): string; export declare function filterObject(object: Record, predicate: (value: any) => boolean): Record; export declare function stringPopulated(string: string): boolean; export declare function trim(input: string, mask?: string): string;