is the Tailwind UI Switch example incomplete?

[Visible-Radio]

I copied the example react code from https://tailwindui.com/components/application-ui/forms/toggles for the "toggle with icon".

I must be missing something obvious, because that switch doesn't appear to be switching.

'use client'

import { useState } from 'react'
import { Switch } from '@headlessui/react'

export default function Example() {
  const [enabled, setEnabled] = useState(false)

  return (
    <Switch
      checked={enabled}
      onChange={setEnabled}
      className="group relative inline-flex h-6 w-11 flex-shrink-0 cursor-pointer rounded-full border-2 border-transparent bg-gray-200 transition-colors duration-200 ease-in-out focus:outline-none focus:ring-2 focus:ring-indigo-600 focus:ring-offset-2 data-[checked]:bg-indigo-600"
    >
      <span className="sr-only">Use setting</span>
      <span className="pointer-events-none relative inline-block h-5 w-5 transform rounded-full bg-white shadow ring-0 transition duration-200 ease-in-out group-data-[checked]:translate-x-5">
        <span
          aria-hidden="true"
          className="absolute inset-0 flex h-full w-full items-center justify-center transition-opacity duration-200 ease-in group-data-[checked]:opacity-0 group-data-[checked]:duration-100 group-data-[checked]:ease-out"
        >
          <svg fill="none" viewBox="0 0 12 12" className="h-3 w-3 text-gray-400">
            <path
              d="M4 8l2-2m0 0l2-2M6 6L4 4m2 2l2 2"
              stroke="currentColor"
              strokeWidth={2}
              strokeLinecap="round"
              strokeLinejoin="round"
            />
          </svg>
        </span>
        <span
          aria-hidden="true"
          className="absolute inset-0 flex h-full w-full items-center justify-center opacity-0 transition-opacity duration-100 ease-out group-data-[checked]:opacity-100 group-data-[checked]:duration-200 group-data-[checked]:ease-in"
        >
          <svg fill="currentColor" viewBox="0 0 12 12" className="h-3 w-3 text-indigo-600">
            <path d="M3.707 5.293a1 1 0 00-1.414 1.414l1.414-1.414zM5 8l-.707.707a1 1 0 001.414 0L5 8zm4.707-3.293a1 1 0 00-1.414-1.414l1.414 1.414zm-7.414 2l2 2 1.414-1.414-2-2-1.414 1.414zm3.414 2l4-4-1.414-1.414-4 4 1.414 1.414z" />
          </svg>
        </span>
      </span>
    </Switch>
  )
}