import type { Context } from "../context.ts";
import type { PubrecPacket } from "../deps.ts";
/**
 * Handles PUBREC (Publish Received) packets for QoS 2 message flow
 * It is the second packet of the QoS 2 protocol exchange.
 * @param ctx - The connection context containing message stores and send function
 * @param packet - The received PUBREC packet
 * @description
 * When a PUBREC packet is received:
 * 1. Checks if there is a pending outgoing message with matching packet ID
 * 2. Creates a PUBREL packet to acknowledge the PUBREC
 * 3. Add the packet ID to pendingAckOutgoing store
 * 4. Removes the message from pendingOutgoing store
 * 5. Sends the PUBREL packet
 */
export declare function handlePubrec(ctx: Context, packet: PubrecPacket): Promise<void>;
//# sourceMappingURL=handlePubrec.d.ts.map