export declare function idnToAscii(domain: string): string;
export declare function asciiToIdn(domain: string): string;
export declare function validateIdnDomain(domain: string): string;
export declare function validateIpv6WithZone(ip: string): {
    ip: string;
    zone?: string;
};
export declare function validateAsnRange(asn: string | number): {
    start: number;
    end?: number;
};
export declare function isIdnDomain(domain: string): boolean;
export declare function isPunycodeDomain(domain: string): boolean;
export declare function validateEmail(email: string): boolean;
export declare function validatePhone(phone: string): boolean;
export declare function normalizeWhitespace(str: string): string;
export declare function validateUrl(url: string): boolean;
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