import { LocaleProperties } from './getLocaleProperties';
export type FullCustomMapping = Record<string, LocaleProperties>;
export type CustomMapping = Record<string, string | Partial<LocaleProperties>>;
export declare const getCustomProperty: (customMapping: CustomMapping, locale: string, property: keyof LocaleProperties) => string | undefined;
/**
 * Checks if a given locale should use the canonical locale.
 * @param locale - The locale to check if it should use the canonical locale
 * @param customMapping - The custom mapping to use for checking if the locale should use the canonical locale
 * @returns True if the locale should use the canonical locale, false otherwise
 */
export declare const shouldUseCanonicalLocale: (locale: string, customMapping: CustomMapping) => boolean;