import { Connection } from "mysql2/promise";
export declare class Exec {
    static exec(conn: Connection, sql: string, pars?: any[]): Promise<boolean>;
    static execs(conn: Connection, sqls: string[]): Promise<boolean[]>;
    static execsSeq(conn: Connection, sqls: string[]): Promise<void>;
    static execsSeqWithTran(conn: Connection, sqls: string[]): Promise<void>;
}