[react + flow] What type to specify for a variable created by React.createRef()?

Question

React

// @flow

import * as React from 'react';

class MyCrap extends React.Component<{}> {
  myRef: any = React.createRef();
  
  render() {
    return <div ref={this.myRef}>Hello</div>;
  }
}

Obviously, instead of any, you can specify a more precise type. Unfortunately, so far I've only come up with something like this:

// @flow

import * as React from 'react';

type Ref = {
    current: any
}

class MyCrap extends React.Component<{}> {
  myRef: Ref = React.createRef();
  
  render() {
    return <div ref={this.myRef}>Hello</div>;
  }
}

I'm sure for current instead of any you can specify the type more precisely. But I haven't figured out which one yet.

Answer 1

According to the doc , it should be
?HTMLDivElement