import { EventEmitter } from '@angular/core';
export declare class ExpansionComponent {
    initialExpanded: boolean;
    heading: string;
    alignHeadingRight: boolean;
    hideBorder: boolean;
    /**
     * A description for the expansion section.
     */
    ariaLabel: string;
    change: EventEmitter<boolean>;
    id: string;
    headerId: string;
    contentId: string;
    onToggle(): void;
}