import "../prototype";
export interface PropertiesProps {
    [key: string]: any;
}
export default class Properties {
    private props;
    constructor(props?: PropertiesProps);
    add(key: string, value: any, keys?: string[]): void;
    get<U extends PropertiesProps | any>(key: string, keys?: string[]): PropertiesProps | any;
    merge(props: PropertiesProps): void;
}