export declare class NeDBService<T> {
    private jsxElectronUtil;
    path: any;
    fs: any;
    private config;
    constructor();
    selectAllSync(databaseName: string): T[];
    selectOneSync(id: string, databaseName: string): T;
    selectOneByColumnSync(columnName: string, columnValue: string, databaseName: string): T;
}