Why don't type imports work?

Question

React

{
  "name": "web",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "webpack-dev-server --mode development --open --hot",
    "build": "webpack --mode production"
  },
  "keywords": [],
  "author": "lexstile",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.3.4",
    "@babel/preset-env": "^7.3.4",
    "@babel/preset-react": "^7.0.0",
    "autoprefixer": "^9.4.10",
    "babel-eslint": "^10.0.1",
    "babel-loader": "^8.0.5",
    "babel-plugin-transform-class-properties": "^6.24.1",
    "css-loader": "^2.1.1",
    "eslint": "^5.15.1",
    "eslint-config-airbnb": "^17.1.0",
    "eslint-import-resolver-webpack": "^0.11.0",
    "eslint-loader": "^2.1.2",
    "eslint-plugin-flowtype": "^3.4.2",
    "eslint-plugin-import": "^2.16.0",
    "eslint-plugin-jsx-a11y": "^6.2.1",
    "eslint-plugin-react": "^7.12.4",
    "flow-bin": "^0.97.0",
    "html-webpack-plugin": "^3.2.0",
    "less": "^3.9.0",
    "less-loader": "^4.1.0",
    "mini-css-extract-plugin": "^0.5.0",
    "postcss-cli": "^6.1.2",
    "postcss-loader": "^3.0.0",
    "pre-commit": "^1.2.2",
    "prop-types": "^15.7.2",
    "react-dev-utils": "^8.0.0",
    "style-loader": "^0.23.1",
    "webpack": "^4.29.6",
    "webpack-cli": "^3.2.3",
    "webpack-dev-server": "^3.2.1"
  },
  "dependencies": {
    "react": "^16.8.4",
    "react-dom": "^16.8.4",
    "react-redux": "^6.0.1",
    "redux": "^4.0.1"
  },
  "pre-commit": [
    "lint",
    "flow"
  ]
}

types.js:

// @flow

export type UserType = {
  id: number,
  name: string,
  work: string,
  age: number,
};

export type UserListType = {
  users: Array<UserType>
};

export type AppComponentType = {
  ...UserListType,
};

Component:

// @flow
import * as React from 'react';
import { connect } from 'react-redux';
import { addUser, editUser, deleteUser } from '../actions';
import type { AppComponentType } from '../types';
import { UserList } from './UserList';

export class AppComponent extends React.PureComponent<AppComponentType> {}

Answer 1

@babel/preset-flow