import mysql from "mysql2/promise";
export type DatabaseCredentials = {
    user: string;
    database: string;
    password: string;
    host: string;
    port: number;
};
export declare const setCredentials: (credentials: DatabaseCredentials) => Promise<void>;
export declare const getCredentials: () => DatabaseCredentials;
export declare const hasConnection: () => boolean;
export declare const getConnection: () => Promise<mysql.Connection>;