export declare class Db {
    db: any;
    constructor(client: any, dbName: any);
    add(collection: any, data: any): Promise<unknown>;
    find(collection: any, query?: {}): Promise<any[]>;
    findOne(collection: any, query?: {}): any;
    update(collection: any, query: any, update: any): any;
    deleteOne(collection: any, query: any): any;
    exist(collection: any, query: any): Promise<boolean>;
}
export declare class DbHandler {
    url: any;
    client: any;
    dbs: any;
    constructor(url: any);
    init(): Promise<void>;
    getDb(dbName: any): any;
}