import type { PoolConnection } from 'mysql2/promise';
import { AbstractPoolQuerier } from '../querier/abstractPoolQuerier.js';
import type { ExtraOptions } from '../type/index.js';
export declare class MySql2Querier extends AbstractPoolQuerier<PoolConnection> {
    constructor(connect: () => Promise<PoolConnection>, extra?: ExtraOptions);
    internalAll<T>(query: string, values?: unknown[]): Promise<T[]>;
    internalRun(query: string, values?: unknown[]): Promise<{
        changes: number;
        ids: any[];
        firstId: any;
    }>;
    protected releaseConn(conn: PoolConnection): Promise<void>;
}
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