import { AugmenterMap } from './types';
export declare class DataAugmenter {
    readonly augmenter: AugmenterMap;
    readonly entities: string[];
    private readonly KEYWORD_PATTERN;
    constructor(augmenter: AugmenterMap, entities: string[]);
    augment(sentences: string[]): string[];
    private augmentSentence;
    private generateVariations;
    private createVariation;
}
