/*******************************************************************************
 * Copyright (c) 2023-2026 Maxprograms.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/epl-v10.html
 *
 * Contributors:
 *     Maxprograms - initial API and implementation
 *******************************************************************************/
import { Cardinality } from "./ContentModel.js";
import { ContentParticle, ContentParticleType } from "./contentParticle.js";
export declare class DTDSequence implements ContentParticle {
    private cardinality;
    private content;
    constructor();
    addParticle(particle: ContentParticle): void;
    getType(): typeof ContentParticleType[keyof typeof ContentParticleType];
    setCardinality(cardinality: typeof Cardinality[keyof typeof Cardinality]): void;
    getCardinality(): typeof Cardinality[keyof typeof Cardinality];
    toString(): string;
    getParticles(): Array<ContentParticle>;
    getChildren(): Set<string>;
}