import { BaseInterface, BaseDecorator } from '../Base/types.js';
import type { Base, BaseProps } from '../Base/index.js';
export interface WithMountWhenInViewProps extends BaseProps {
    $options: {
        intersectionObserver: IntersectionObserverInit;
    };
}
export interface WithMountWhenInViewInterface extends BaseInterface {
    /**
     * @private
     */
    __isVisible: boolean;
    /**
     * @private
     */
    __observer: IntersectionObserver;
}
/**
 * IntersectionObserver decoration.
 * @link https://js-toolkit.studiometa.dev/api/decorators/withMountWhenInView.html
*/
export declare function withMountWhenInView<S extends Base = Base>(BaseClass: typeof Base, defaultOptions?: IntersectionObserverInit): BaseDecorator<WithMountWhenInViewInterface, S, WithMountWhenInViewProps>;