/**
 * The Astro renderer's client half: what an `<astro-island>` calls once its
 * directive fires. For a server-rendered element it sets the props the HTML
 * couldn't carry, then lets the element hydrate; for `client:only` there is
 * no HTML, so it creates the element.
 */
type LitClass = CustomElementConstructor & {
    elementProperties?: ReadonlyMap<PropertyKey, {
        attribute?: boolean | string;
    }>;
};
export default _default;
declare function _default(island: HTMLElement): (component: LitClass | string, props: Record<string, unknown>, slots: Record<string, string>, { client }: {
    client: string;
}) => Promise<void>;
//# sourceMappingURL=client.d.ts.map