import pg from 'pg';
import type { ExtraOptions } from 'nukak/type';
import { AbstractQuerierPool } from 'nukak/querier';
import { PgQuerier } from './pgQuerier.js';
export declare class PgQuerierPool extends AbstractQuerierPool<PgQuerier> {
    readonly pool: pg.Pool;
    constructor(opts: pg.PoolConfig, extra?: ExtraOptions);
    getQuerier(): Promise<PgQuerier>;
    end(): Promise<void>;
}