/**
 * @returns A tupple of a `React.Ref` to attach to an element and an `AnimationLink` containing `x` and `y` viewport positions from `0` to `1`.
 *
 * @see {@link https://lively.infinityfx.dev/docs/hooks/use-viewport}
 */
export default function useViewport<T extends Element = any>(
/**
 * @default .5
 */
threshold?: number): readonly [import("react").RefObject<T | null>, import("..").AnimationLink<{
    x: number;
    y: number;
}, {
    x: number;
    y: number;
}>];