Как использовать переменную за пределами async function?

const urlChannel = 'https://www.googleapis.com/youtube/v3/channels?part=snippet&id=' + channelID + '&fields=items%2Fsnippet%2Fthumbnails&key=' + apiKey;

async function getChannel(){
      const urlChannelResult = await fetch(urlChannel)
      const jsonChannel = await urlChannelResult.json()
      const authorPhoto = jsonChannel.items[0].snippet.thumbnails.high.url;
      console.log(authorPhoto)

      return authorPhoto;
}

const usePhoto = await getChannel();