import type { Nullable } from "./types"; export declare const getStyle: (element: HTMLElement, styleName: string) => string; export declare const isScroll: (el: HTMLElement, isVertical?: Nullable | undefined) => RegExpMatchArray | null; export declare const getScrollContainer: (el: HTMLElement, isVertical?: Nullable | undefined) => Window | HTMLElement | undefined; export declare const isInContainer: (el: Element | undefined, container: Element | Window | undefined) => boolean;