export type ParsedIpAddress = {
    family: 4;
    bytes: Uint8Array;
} | {
    family: 6;
    bytes: Uint8Array;
};
export declare function encodeUtf8(value: string): Uint8Array;
export declare function utf8ByteLength(value: string): number;
export declare function concatenateBytes(chunks: readonly Uint8Array[]): Uint8Array;
export declare function parseIpAddress(value: string): ParsedIpAddress | null;
export declare function isIP(value: string): 0 | 4 | 6;
export declare function encodeBase64Url(bytes: Uint8Array): string;