export declare class NumberUtils {
    static parseInt(text: any, radix?: number): number | undefined;
    static parseRoundedInt(text: any): number | undefined;
    static parseFloat(text: any): number | undefined;
    static isNullOrEmpty(val: number | null | undefined): val is 0 | undefined | null;
    static format(val: number, digit?: {
        max?: number;
        min?: number;
    }): string;
    static format(val: number | undefined, digit?: {
        max?: number;
        min?: number;
    }): string | undefined;
}