import type { Calendar, Locale, LocalizeApi, NumberFormatSettings, ServerLanguagesProviderProps, TemperatureUnit } from "./types";
/**
 * Gets the device's calendar system.
 * @returns A {@link Calendar} (e.g., `"gregorian"`)
 */
export declare const getCalendar: () => Calendar;
/**
 * Gets the device's country code.
 * @returns An ISO 3166-1 alpha-2 country code (e.g., `"US"`, `"FR"`)
 */
export declare const getCountry: () => string;
/**
 * Gets currency codes for the device's locales.
 * @returns An array of ISO 4217 currency codes (e.g., `["USD", "EUR"]`)
 */
export declare const getCurrencies: () => string[];
/**
 * Gets the device's locales with language, country, and text direction info.
 * @returns An array of {@link Locale} objects
 */
export declare const getLocales: () => Locale[];
/**
 * Gets the device's decimal and grouping separators.
 * @returns A {@link NumberFormatSettings} object
 */
export declare const getNumberFormatSettings: () => NumberFormatSettings;
/**
 * Gets the device's preferred temperature unit.
 * @returns A {@link TemperatureUnit} (`"celsius"` or `"fahrenheit"`)
 */
export declare const getTemperatureUnit: () => TemperatureUnit;
/**
 * Gets the device's IANA time zone.
 * @returns An IANA time zone identifier (e.g., `"America/New_York"`)
 */
export declare const getTimeZone: () => string;
/**
 * Gets whether the device uses 24-hour time format.
 * @returns `true` if 24-hour, `false` if 12-hour
 */
export declare const uses24HourClock: () => boolean;
/**
 * Gets whether the device uses the metric system.
 * @returns `true` for metric, `false` for imperial
 */
export declare const usesMetricSystem: () => boolean;
/**
 * Gets whether automatic date & time is enabled.
 * @returns A `boolean`, or `undefined` if unsupported
 */
export declare const usesAutoDateAndTime: () => boolean | undefined;
/**
 * Gets whether automatic time zone is enabled.
 * @returns A `boolean`, or `undefined` if unsupported
 */
export declare const usesAutoTimeZone: () => boolean | undefined;
/**
 * Finds the best matching language tag from the given list based on device locales.
 * @param languageTags - An array of BCP 47 language tags to match against
 * @returns The best match with its `isRTL` flag, or `undefined` if none found
 */
export declare const findBestLanguageTag: <T extends string>(languageTags: readonly T[]) => {
    languageTag: T;
    isRTL: boolean;
} | undefined;
/**
 * Opens the system app language settings. Only supported on Android 13+.
 * @throws On unsupported platforms
 */
export declare const openAppLanguageSettings: () => Promise<void>;
/**
 * Provides custom language tags for SSR / testing.
 * Only active server-side; on the client, renders children as-is.
 *
 * @example
 * ```tsx
 * <ServerLanguagesProvider value={["fr-FR", "en-US"]}>
 *   <App />
 * </ServerLanguagesProvider>
 * ```
 */
export declare const ServerLanguagesProvider: ({ children, value, }: ServerLanguagesProviderProps) => string | number | bigint | boolean | import("react").ReactElement<unknown, string | import("react").JSXElementConstructor<any>> | Iterable<import("react").ReactNode> | Promise<string | number | bigint | boolean | import("react").ReactPortal | import("react").ReactElement<unknown, string | import("react").JSXElementConstructor<any>> | Iterable<import("react").ReactNode> | null | undefined> | import("react").FunctionComponentElement<import("react").ProviderProps<string[] | null>> | null | undefined;
/**
 * Returns the {@link LocalizeApi} localization API.
 * Uses device languages on the client, or {@link ServerLanguagesProvider} values during SSR.
 *
 * @example
 * ```tsx
 * const { getLocales, getTemperatureUnit } = useLocalize();
 * ```
 */
export declare const useLocalize: () => LocalizeApi;
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