How to use the @tanker/client-browser.statuses function in @tanker/client-browser

import React, { Component } from 'react';
import { Button, Col, ControlLabel, FormGroup, FormControl, Grid, InputGroup, PageHeader, Panel, Row } from 'react-bootstrap';
import * as emailValidator from 'email-validator';
import Tanker, { toBase64, fromBase64, errors } from '@tanker/client-browser';

import { getEntry, LogPanel } from './log';

const {
  STOPPED,
  READY,
  IDENTITY_REGISTRATION_NEEDED,
  IDENTITY_VERIFICATION_NEEDED
} = Tanker.statuses;

const serverRoot = `http://${window.location.hostname}:8080`;

const doRequest = (url, options = {}) => fetch(url, { credentials: 'include', ...options });

class App extends Component {
  constructor() {
    super();
    this.state = {
      email: '',
      clearText: '',
      encryptedText: '',
      shareWith: '',
      loading: true,
      log: []
    };