type Formatted = number | string | React.JSX.Element;
type FormatObject<U extends Formatted> = {
    [key: string]: U;
};
export interface LangMap {
    [key: string]: string | string[];
}
export declare class Lang<T extends LangMap> {
    protected isDebug: boolean;
    protected decodedKeys: T;
    constructor(decodedKeys: T);
    use<U extends Formatted>(key: keyof T, values?: FormatObject<U> | null | number, mode?: "raw" | "decode", needCount?: boolean): string;
    protected formatTemplate(template: string, values: FormatObject<Formatted>): string;
    toggleDebug(): void;
}
export {};