/**
 * Creates extensions that render a React element at the app root, outside of
 * the app layout. This is useful for example for shared popups and similar.
 *
 * @public
 */
export declare const AppRootElementBlueprint: import("../wiring").ExtensionBlueprint<{
    kind: "app-root-element";
    name: undefined;
    params: {
        element: JSX.Element | (() => JSX.Element);
    };
    output: import("../wiring").ConfigurableExtensionDataRef<import("react").JSX.Element, "core.reactElement", {}>;
    inputs: {};
    config: {};
    configInput: {};
    dataRefs: never;
}>;