/**
 * Observe all changes to the device-pixel-content-box of a node.
 *
 * @param {Element} node
 * @returns {ActionReturn<void, Attributes>}
 */
export function devicePixelResizeObserver(node: Element): ActionReturn<void, Attributes>;
/**
 * <T, A>
 */
export type ActionReturn<T, A extends Record<string, any>> = import("svelte/action").ActionReturn<T, A>;
export type DevicePixelResizeEvent = CustomEvent<{
    width: number;
    height: number;
}>;
export type Attributes = {
    "on:devicepixelresize"?: (e: DevicePixelResizeEvent) => void;
};