import type { Viewport } from '../Viewport.js';
import { Size } from '../geometry.js';
import { type Props as NotificationProps, Notification } from './Notification.js';
export interface Props extends NotificationProps {
}
export declare class Callout extends Notification {
    #private;
    constructor(props?: Props);
    update(props: Props): void;
    naturalSize(available: Size): Size;
    render(viewport: Viewport): void;
}