react-bootstrap怎么一次性导入所有的组件

import Button from 'react-bootstrap/lib/Button';
import Modal from 'react-bootstrap/lib/Modal';
import Popover from 'react-bootstrap/lib/Popover';
import Tooltip from 'react-bootstrap/lib/Tooltip';
import OverlayTrigger from 'react-bootstrap/lib/OverlayTrigger';

怎么一次性导入所有的组件呢?

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import * as bootstrap from 'react-bootstrap';

bootstrap.Button
...