export declare class LocalizationStore {
    private data;
    private language;
    constructor(language?: string);
    get(key: string): string | undefined;
    set(key: string, value: string): void;
    delete(key: string): boolean;
    has(key: string): boolean;
    entries(): IterableIterator<[string, string]>;
    keys(): IterableIterator<string>;
    get size(): number;
    toCSV(): string;
    static fromCSV(content: string): LocalizationStore;
}
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