import type { Readable } from 'svelte/store';
export type ResizeObserverConfig = {
    /**
     * Called every time a resize event occurs for any of the observed elements.
     */
    handler?: (entries: Record<string, ResizeObserverEntry>) => void;
    /**
     * Sets which box model the observer will observe changes to. Possible values
     * are `content-box` (the default), `border-box` and `device-pixel-content-box`.
     *
     * @defaultValue 'content-box'
     */
    box?: ResizeObserverBoxOptions;
};
export type ResizeObserverUseConfig = {
    /**
     * Called every time a resize event occurs for the current observed element.
     */
    handler?: (entry: ResizeObserverEntry) => void;
    /**
     * Sets which box model the observer will observe changes to. Possible values
     * are `content-box` (the default), `border-box` and `device-pixel-content-box`.
     *
     * @defaultValue 'content-box'
     */
    box?: ResizeObserverBoxOptions;
};
export type ResizeObserverReturn = {
    /**
     * Whether `ResizeObserver` is supported.
     */
    isSupported: boolean;
    /**
     * The resize data for all observed elements.
     */
    entries: Readable<Record<string, ResizeObserverEntry>>;
    /**
     * Action for the element that needs to be observed.
     */
    useResizeObserver: (node: HTMLElement, config?: ResizeObserverUseConfig) => {
        destroy: VoidFunction;
    };
};