export declare class NumberService {
    toString(value: number, format?: string): string | null;
    fromString(value: string, decimalPlaces?: number): number;
    stringIsNumber(value?: string, decimalPlaces?: number): boolean;
    private getNumberRegexString(decimalPlaces?);
    round(value: number, decimals: number, type: RoundingType): number;
    roundForSalesTax(value: number): number;
    roundHalfUp(value: number, decimals: number): number;
    roundBankers(value: number, decimals: number): number;
    private _bankersRound(num, decimals);
    private _halfUpRound(num, decimals);
}
export declare enum RoundingType {
    Bankers = 1,
    HalfUp = 2,
}