import { TranslationEngine } from './translation-engine';
import { SentenceFormat } from '../translator/sentence-format';
import { DictEntry } from '../dict/dict-entry';
import { TranslationPair } from '../translator/translation-pair';
export declare class ExtractorEngine extends TranslationEngine {
    private options;
    constructor(options?: {
        dict?: string;
        cwd?: string;
    });
    private _entries;
    get entries(): Readonly<DictEntry>[];
    protected batchTranslate(sentences: TranslationPair[], format: SentenceFormat): Promise<TranslationPair[]>;
    saveToFile(dictFile: string): void;
    setup(currentFile: string): Promise<void>;
    tearDown(): Promise<void>;
}