Which of these is a higher order component?

with-foo.js

// Which of these things is the "Higher Order Component?"

function withFoo(Component) { // <-- this is a function, not a component
  class Wrapper extends React.Component { // <-- this is a component
    static displayName = `withFoo(${Component.displayName || Component.name})`
    static propTypes = {innerRef: PropTypes.func}
    static WrappedComponent = Component
    render() {
      const {innerRef, ...remainingProps} = this.props
      return <Component {...remainingProps} foo="FOO!" ref={innerRef} />
    }
  }

  return hoistNonReactStatics(Wrapper, Component)
}

// I think the "Higher Order Component" is the "Wrapper" class...
// That's the only component here. So the "withFoo" function
// is a "Higher Order Component Factory"

// What do you think? (Note: I don't get notifications on gist comments..........)