export declare class Helper {
    uid(): string;
    splitStringJSONtoKeyValue(jsonString: string): {
        key: string;
        value: string;
    }[];
    insertInText(target: string, source: string, index: number): string;
    insertInTextWithInterval(target: string, source: string, startIndex: number, endIndex: number): string;
    cloneObject(obj: any): any;
    padLeft(text: string, qtty?: number, char?: string | number): string;
    padRight(text: string, qtty?: number, char?: string | number): string;
}