import * as React from 'react'; interface PlanetListItem { name: string; subtitle?: boolean; } type ExampleState = { useContainer: boolean; list: ReadonlyArray; }; export default class Example extends React.Component<{}, ExampleState> { private _container; state: { useContainer: boolean; list: ({ name: string; subtitle?: undefined; } | { name: string; subtitle: boolean; })[]; }; private _togglePluto; private _toggleContainer; private _onListChange; render(): React.JSX.Element; } export {};