import { Sequelize } from 'sequelize-typescript';
import { DBConfig } from '../interface';
import { QueryInterface } from 'sequelize';
/**
 * sequelize mysql db client
 * DB.initDB(DBConfig)
 * DB.sequelize.close()
 */
export declare class DBClient {
    sequelize: Sequelize;
    queryInterface: QueryInterface;
    constructor(config: DBConfig);
    /**
     * 关闭
     */
    close(): Promise<void>;
}