import { RedisFailureStrategy } from './enums';
import { ThrottlerConfig } from './interfaces';
export declare function isRedisFailureStrategy(value: unknown): value is RedisFailureStrategy;
export declare function validateFailureStrategy(value: unknown): RedisFailureStrategy;
export declare function validatePort(value: string | number): number;
export declare function validateRedisDb(value: string | number): number;
export declare function validateMaxWindowSize(value: string | number): number;
export declare function parseBoolean(value: string | undefined, defaultValue: boolean): boolean;
export declare function validateConfig(config: ThrottlerConfig): {
    isValid: boolean;
    warnings: string[];
};