import defaultLogger from '../monitoring/logger';
type Logger = Pick<typeof defaultLogger, 'error'>;
export type HealthMonitorOptions = {
    logger?: Logger;
    logging?: boolean;
};
export declare class HealthMonitor {
    private expectedQueues;
    private activeConsumers;
    private logger;
    private loggingEnabled;
    constructor({ logger, logging }?: HealthMonitorOptions);
    enableLogging(): this;
    disableLogging(): this;
    markActive(queue: string): void;
    markInactive(queue: string, reason: string, detail?: string): void;
    getMissingQueues(): string[];
    isHealthy(): boolean;
}
export {};