import type { CodecOpts, PacketId, TopicFilter } from "./types.ts";
import type { ProtocolLevelNoV5 } from "./protocolLevels.ts";
import type { UnsubscribeProperties } from "./Properties.ts";
import { PacketType } from "./PacketType.ts";
/**
 * Represents an MQTT UNSUBSCRIBE packet conforming to MQTT version 3.1.1 (Protocol Level 4) or lower.
 */
export type UnsubscribePacketV4 = {
    /** The type of the MQTT control packet. */
    type: PacketType;
    /** The protocol version level, restricted to non-v5 variants. */
    protocolLevel: ProtocolLevelNoV5;
    /** The unique 16-bit packet identifier. */
    id: PacketId;
    /** The list of topic filters from which the client intends to unsubscribe. */
    topicFilters: TopicFilter[];
};
/**
 * Represents an MQTT UNSUBSCRIBE packet conforming to MQTT version 5.0.
 */
export type UnsubscribePacketV5 = {
    /** The type of the MQTT control packet. */
    type: PacketType;
    /** The protocol version level, strictly set to 5. */
    protocolLevel: 5;
    /** The unique 16-bit packet identifier. */
    id: PacketId;
    /** Optional user and protocol properties introduced in MQTT v5. */
    properties?: UnsubscribeProperties;
    /** The list of topic filters from which the client intends to unsubscribe. */
    topicFilters: TopicFilter[];
};
/**
 * Represents a union of available MQTT UNSUBSCRIBE packets (v4 or v5) sent from client to server.
 */
export type UnsubscribePacket = UnsubscribePacketV4 | UnsubscribePacketV5;
/**
 * Codec utility object responsible for encoding and decoding MQTT UNSUBSCRIBE control packets.
 */
export declare function encode(packet: UnsubscribePacket, codecOpts: CodecOpts): Uint8Array;
export declare function decode(buffer: Uint8Array, flags: number, codecOpts: CodecOpts, packetType: PacketType): UnsubscribePacket;
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