export function getMaximumFractionDigits(step: number): number;
export function parseNumber(inputValue: string): number | undefined;
export function isAtMin(inputValue: string, min: number | undefined): boolean;
export function isAtMax(inputValue: string, max: number | undefined): boolean;
export function stepNumber(inputValue: string, { step, direction, min, max }: {
    step: number;
    direction: 1 | -1;
    min?: number | undefined;
    max?: number | undefined;
}): string | undefined;
export function isInvalidNumber(inputValue: string, { required, min, max }?: {
    required?: boolean | undefined;
    min?: number | undefined;
    max?: number | undefined;
}): boolean;