export default class UtilType {
    static prefix(prefix: string, data: SimpleMap): SimpleMap;
}
export declare type PrimitiveType = string | boolean | number;
export declare type SimpleMap = {
    [prop: string]: PrimitiveType;
};
export declare type PrimitiveMap = {
    [prop: string]: PrimitiveType | PrimitiveType[] | PrimitiveMap;
};
export declare type StringMap = {
    [prop: string]: string;
};