Replace "ES7" with "ES2017"
Replace "ES7" with "ES2017"

There is no such thing as "ES7". Presumably the author meant ES2016, but many web components libraries / bas classes use async functions which would make them ES2017.
kadirahq/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,storybooks/react-storybook,storybooks/react-storybook