import * as Yup from 'yup';
export declare const isIPorDN: (value?: string, dnsRegex?: RegExp) => boolean;
export declare const isIPv4Address: (ip?: string) => boolean;
export declare const isIPv6Address: (ip?: string) => boolean;
export declare const alwaysRequired: (message?: string) => Yup.StringSchema<string | undefined, Yup.AnyObject, undefined, "">;
export declare const getArrayIndexFromPath: (path: string) => number;
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