/// <reference types="node" />
import { EventEmitter } from 'events';
import { Luis } from './luis-model';
export declare type culture = 'en-us' | 'es-es';
export declare class LanguageModelParser extends EventEmitter {
    private doc;
    culture: culture;
    parse(files: string[], culture: culture, ner?: boolean): Luis.Model;
    private searchMissedVariables;
    private expandVariables;
    private extractEntities;
    private registerEntity;
    private normalizeSentence;
    private static wordCount;
    private static splitSentenceByTokens;
    private static tokenize;
    private buildUtterance;
    private warnAboutDuplicates;
    private emitWarning;
    private emitError;
}