import type { AttendanceRecord, FingerprintTemplateIndex, RealTimeLog, User } from "./types.ts";
export declare function createChecksum(buf: Buffer): number;
export declare function createUDPHeader(command: number, sessionId: number, replyId: number, data?: Buffer | string): Buffer;
export declare function createTCPHeader(command: number, sessionId: number, replyId: number, data?: Buffer | string): Buffer;
export declare function removeTcpHeader(buf: Buffer): Buffer;
export declare function decodeUDPHeader(header: Buffer): {
    commandId: number;
    checkSum: number;
    sessionId: number;
    replyId: number;
};
export declare function decodeTCPHeader(header: Buffer): {
    commandId: number;
    checkSum: number;
    sessionId: number;
    replyId: number;
    payloadSize: number;
};
export declare function exportErrorMessage(commandValue: number): string;
export declare function assertAckReply(payload: Buffer, context: string): void;
export declare function checkNotEventTCP(data: Buffer): boolean;
export declare function checkNotEventUDP(data: Buffer): boolean;
export declare function decodeDeviceTime(encoded: number): Date;
export declare function encodeDeviceTime(date: Date): number;
export declare function decodeUserData72(userData: Buffer): User;
export declare function decodeUserData28(userData: Buffer): User;
export declare function decodeRecordData40(recordData: Buffer, ip?: string): AttendanceRecord;
export declare function decodeRecordData16(recordData: Buffer, ip?: string): AttendanceRecord;
export declare function decodeRecordRealTimeLog18(recordData: Buffer): RealTimeLog;
export declare function decodeRecordRealTimeLog52(recordData: Buffer): RealTimeLog;
export declare function parseUsersFromBuffer(data: Buffer, packetSize: number, ip?: string): User[];
export declare function parseFingerprintTemplatesFromBuffer(data: Buffer): FingerprintTemplateIndex[];
export declare function summarizeFingerprintTemplates(templates: FingerprintTemplateIndex[]): Map<number, number[]>;
export declare function encodeRecordData40(record: AttendanceRecord): Buffer;
export declare function encodeRecordData16(record: AttendanceRecord): Buffer;
export declare function encodeAttendancesBuffer(records: AttendanceRecord[], packetSize: number): Buffer;
export declare function parseAttendancesFromBuffer(data: Buffer, packetSize: number, ip?: string): AttendanceRecord[];
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