import { IntersectionObserverEntry } from "./intersection-observer-entry";
export declare type ConstructibleIntersectionObserver = new (callback: IntersectionObserverCallback, options: IntersectionObserverOptions) => IntersectionObserverClassDefinition;
export declare class IntersectionObserverClassDefinition {
    root: Element;
    rootMargin: string;
    thresholds: number[];
    constructor(callback: IntersectionObserverCallback, options: IntersectionObserverOptions);
    observe(target: Element): void;
    unobserve(target: Element): void;
    disconnect(): void;
    takeRecords(): IntersectionObserverEntry[];
}
export declare type IntersectionObserverCallback = (entries: IntersectionObserverEntry[], observer: IntersectionObserverClassDefinition) => void;
export interface IntersectionObserverOptions {
    root: Element;
    rootMargin: string;
    threshold: number | number[];
}