export interface HMSIntersectionObserverCallback {
    (entry: IntersectionObserverEntry): void;
}
/**
 * This is a wrapper around IntersectionObserver which will call the callback passed
 * for an element while observing, only when that element is intersecting
 */
export declare class HMSIntersectionObserverWrapper {
    private intersectionObserver?;
    private readonly TAG;
    private listeners;
    constructor();
    isSupported(): boolean;
    observe: (element: HTMLElement, onIntersection: HMSIntersectionObserverCallback) => void;
    unobserve: (element: HTMLElement) => void;
    private createObserver;
    private handleIntersection;
}
export declare const HMSIntersectionObserver: HMSIntersectionObserverWrapper;