import pg from 'pg';
export declare const RETRY_DELAY = 1000;
export declare function connect(params?: {
    silent?: boolean;
}): Promise<pg.PoolClient>;
export declare function disconnect(): Promise<void>;
export declare function testConnection(): Promise<boolean>;
export declare function getConnectionStats(): {
    total: number;
    idle: number;
    active: number;
} | null;