/**
 * Result of normalizing a native number input string.
 */
export type NumberNormalizationResult = {
    readonly valid: true;
    readonly value: number | null | undefined;
} | {
    readonly valid: false;
};
/**
 * Normalizes a native number input without ever returning an empty string.
 *
 * @param inputValue - Native input string.
 * @param emptyValue - Configured representation for an empty control.
 * @returns A number, the configured empty value, or an invalid result.
 */
export declare function normalizeNumberValue(inputValue: string, emptyValue: null | undefined): NumberNormalizationResult;