declare const DEBUG_ENABLED: boolean | undefined;
export declare const debugLog: (...args: unknown[]) => void;
export type PoolLike = {
    totalCount: number;
    idleCount: number;
    waitingCount: number;
};
export declare function isPoolHealthy(pool: PoolLike): {
    total: number;
    idle: number;
    waiting: number;
};
export declare function emitMetrics(label: string, pool?: PoolLike): void;
export { DEBUG_ENABLED };