import { Loader } from '@fluentui/react-northstar'; import * as React from 'react'; import { useBooleanKnob, useRangeKnob } from '@fluentui/docs-components'; const LoaderExampleDelay = () => { const [mounted] = useBooleanKnob({ name: 'mounted', initialValue: true }); const [delay] = useRangeKnob({ name: 'delay', initialValue: 500 }); return