import NumberPicker from '..'; import Radio from '../../radio'; import React from 'react'; import ReactDOM from 'react-dom'; interface PageStates { device: string; } class Demo extends React.Component<{}, PageStates> { handleDeviceChange: (device: any) => void; constructor(props) { super(props); this.state = { device: 'desktop', }; this.handleDeviceChange = device => { this.setState({ device, }); }; } render() { return (