import type { Options } from 'pug';
import { TemplateEngineEnum } from '../../interfaces/template.types';
import { TemplateEngine } from '../template-engine';
import { CustomEngineOptions, EngineOptions } from '../../interfaces/module-config.interface';
export declare class PugEngine extends TemplateEngine {
    private customOptions?;
    static engineName: TemplateEngineEnum;
    private options;
    constructor(options?: EngineOptions<Options>, customOptions?: CustomEngineOptions);
    render(content: string, data: any): Promise<string>;
    validate(content: string): Promise<boolean>;
}