import { AnyVirtualDOM, ChildrenLike, VirtualDOM, ChildLike } from '@youwol/rx-vdom';
/**
 * Represents an expandable widget, featuring:
 * * An horizontal customizable header
 * * The content when expanded
 *
 * This view is registered in {@link GlobalMarkdownViews}: it can be instantiated from Markdown using the tag
 * `expandable`. See constructor's documentation for details regarding its parameters.
 */
export declare class ExpandableGroupView implements VirtualDOM<'div'> {
    readonly tag = "div";
    readonly class = "w-100 rounded border py-1 px-2 my-1";
    readonly children: ChildrenLike;
    /**
     * Initializes a new instance.
     *
     * @param _args The arguments.
     * @param _args.title Title displayed in the header.
     * Provided as attribute `title` when instantiated from MarkDown.
     * @param _args.icon Icon displayed in the header. An instance of `string` is used as class of a `div` element.
     * Provided as attribute `icon` when instantiated from MarkDown (only string supported).
     * @param _args.content Content displayed when the widget is expanded.
     * Provided as the HTMLElement's `textContent` when instantiated from MarkDown.
     * @param _args.expanded Initial state. Provided as attribute `expanded` when instantiated from MarkDown.
     * @param _args.mode Whether to preserve the state of the content when expanding/hidding.
     */
    constructor({ title, icon, content, expanded, mode, }: {
        title: string | ChildLike;
        icon: string | AnyVirtualDOM;
        content: () => AnyVirtualDOM;
        mode?: 'stateful' | 'stateless';
        expanded?: boolean;
    });
}