interface WidgetEventOptions {
    preventable: boolean;
}
export declare class WidgetEvent<T = void, R = void> {
    data?: T;
    defaultPrevented: boolean;
    resolvedWith: Maybe<R>;
    preventable: boolean;
    constructor(data?: T, options?: WidgetEventOptions);
    preventDefault(resolveWith?: R): void;
}
export {};