import { DictionaryIndexType } from '../types/yomitan/dictionaryindex';
export declare class DictionaryIndex {
    index: DictionaryIndexType;
    constructor(_index?: DictionaryIndexType);
    setTitle(title: string): this;
    setRevision(revision: string): this;
    setFormat(format: DictionaryIndexType['format']): this;
    setAuthor(author: string): this;
    setIsUpdatable(isUpdatable: boolean): this;
    setIndexUrl(indexUrl: string): this;
    setDownloadUrl(downloadUrl: string): this;
    setDescription(description: string): this;
    setAttribution(attribution: string): this;
    setUrl(url: string): this;
    setSequenced(sequenced: boolean): this;
    setFrequencyMode(mode: DictionaryIndexType['frequencyMode']): this;
    setSourceLanguage(sourceLanguage: DictionaryIndexType['sourceLanguage']): this;
    setTargetLanguage(targetLanguage: DictionaryIndexType['targetLanguage']): this;
    build(): DictionaryIndexType;
    /**
     * Exports the dictionary index to a JSON file (useful for auto updating dictionaries)
     * @param directory - The directory to export the dictionary to
     */
    export(directory?: string, fileName?: string): Promise<void>;
}