export declare function createInitialFromUserName(name: string): string;
export declare const formatDateToIndonesian: (date: Date) => string;
export declare const parseIndonesianDateToDate: (dateString: string) => Date | null;
export declare function formatRupiah(amount: string | number | undefined, withRp?: boolean): string;
declare global {
    interface String {
        toTitleCase(): string;
        toNumber(): number;
    }
}
export declare const getInitials: (name: string) => string;
