import { AmqpMethodContext } from './amqpMethodContext';
export declare function nack({ channel, request }: AmqpMethodContext): Promise<{
    protocol: string;
    name: string;
    statusCode: number;
    headers: {
        channelId: number;
        method: string;
    };
    request: import("..").AmqpRequest;
    body: string;
} | undefined>;