export declare class Locale {
    private static readonly supportedLanguages;
    private static readonly extraCodes;
    private static readonly englishFallbacks;
    static init: (backends: string[]) => Promise<void>;
    private static deepMerge;
    private static isObject;
    private static getNestedValue;
    static t(key: string, options?: Record<string, unknown>): string;
    static label(key: string): string;
    static isInitialized(): boolean;
    static initFallbackMode(): void;
}
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