import { ScrollSpyService } from '../scroll-spy-service/scroll-spy.service';
/**
 * A component to wrap section content within that will update the
 * `ScrollSpyService` when it's in view
 *
 * @example
 * ```html
 *  <sn-scroll-spy-section id="section1" for="foo">
 *    ...
 *  </sn-scroll-spy-section>
 * ```
 */
export declare class ScrollSpySectionComponent {
    private scrollSpySvc;
    /**
     * Identifies the section
     *
     * @memberof ScrollSpySectionComponent
     */
    id: string;
    /**
     * Specifies which `ScrollSpy` instance to update
     *
     * @memberof ScrollSpySectionComponent
     */
    for: string;
    /**
     * Creates an instance of ScrollSpySectionComponent.
     * @memberof ScrollSpySectionComponent
     */
    constructor(scrollSpySvc: ScrollSpyService);
    /**
     * Updates `ScrollSpy` section when element enters/leaves viewport
     *
     * @memberof ScrollSpySectionComponent
     */
    onInViewportChange(inViewport: boolean): void;
}