/**
 * Core number formatting helpers used by all NumberFormat variants.
 */
import type { NumberFormatValue, FormatPartItem, PartFormatter, InternalNumberFormatOptions } from './types';
/**
 * For internal usage.
 * Returns an array that contains all the parts of the given number
 * `[{ value, type }]`.
 */
export declare function formatToParts({ number, locale, options, }: {
    number: NumberFormatValue;
    locale?: string | null;
    options?: InternalNumberFormatOptions | null;
}): FormatPartItem[];
/**
 * Aligns the currency symbol in the output based on the currency display option.
 * "norske kroner" ("Norwegian kroner") will be changed to "kroner" if the
 * currency display option is set to "name".
 */
export declare function alignCurrencySymbol(output: string | number, currencyDisplay: string | boolean | null | undefined): string;
/**
 * When e.g. a currency number is given with a minus,
 * this function transforms the minus to be moved before the number
 * instead of the symbol.
 *
 * It only cleans if locale is Norwegian.
 * Form `-NOK 1 234` to `NOK -1 234`.
 */
export declare const prepareMinus: (display: string, locale: string | null) => string;
/**
 * Enhance VoiceOver support on mobile devices.
 * Numbers under 99.999 are read out correctly, but only if we remove the spaces.
 */
export declare const enhanceSR: (value: NumberFormatValue, aria: string, locale: string | null) => string;
/**
 * The main number formatter function.
 * Calls the browser/Node.js `Intl.NumberFormat` or `Number.toLocaleString` APIs.
 */
export declare const formatNumberCore: (number: NumberFormatValue, locale: string | null, options?: InternalNumberFormatOptions, formatter?: PartFormatter | null) => string;