import type dgram from 'node:dgram';
import { Multicast } from './multicast.js';
export interface CoapMessage {
    version: number;
    type: number;
    tokenLength: number;
    code: number;
    messageId: number;
    token: Buffer;
    options: CoapOption[];
    payload?: Buffer;
}
interface CoapOption {
    number: number;
    value: Buffer;
}
export declare const COAP_OPTION_URI_PATH = 11;
export declare const COIOT_OPTION_DEVID = 3332;
export declare const COIOT_OPTION_VALIDITY = 3412;
export declare const COIOT_OPTION_SERIAL = 3420;
export declare const COIOT_REQUEST_STATUS_ID = 56831;
export declare const COIOT_REQUEST_DESCRIPTION_ID = 56832;
export declare class Coap extends Multicast {
    constructor(name: string, multicastAddress: string, multicastPort: number, socketType: 'udp4' | 'udp6', reuseAddr?: boolean | undefined, interfaceName?: string, interfaceAddress?: string);
    onCoapMessage(message: CoapMessage, rinfo: dgram.RemoteInfo): void;
    onMessage(msg: Buffer, rinfo: dgram.RemoteInfo): void;
    decodeCoapMessage(msg: Buffer): CoapMessage;
    encodeCoapMessage(msg: CoapMessage): Buffer;
    coapTypeToString(type: number): string;
    coapCodeToString(code: number): string;
    sendRequest(messageId: number, options: CoapOption[], payload: Record<string, any> | undefined, token: string | undefined, address: string | undefined, port: number | undefined): void;
    logCoapMessage(msg: CoapMessage): void;
}
export {};