/// <reference types="node" />
export declare function generateTransactionId(): string;
export declare function generateHmacSha1Digest(key: string, $buf: Buffer): Buffer;
export declare function methodAndClassToMessageType([method, klass]: [number, number]): number;
export declare function numberToBinaryStringArray(num: number, digit?: number): string[];
export declare function calcPaddingByte(curByte: number, boundaryByte: number): number;
export declare function bufferXor(a: Buffer, b: Buffer): Buffer;
export declare function writeAttrBuffer(type: number, $value: Buffer): Buffer;
export declare function ipV4BufferToString($ip: Buffer): string;
export declare function ipV4StringToBuffer(ip: string): Buffer;
export declare function ipV6BufferToString($ip: Buffer): string;
export declare function ipV6StringToBuffer(ip: string): Buffer;