react-native-app-auth: Cannot read property 'authorize' of undefined

I get TypeError: Cannot read property 'authorize' of undefined with this setup

import { authorize as auth } from 'react-native-app-auth';

const config = {
  clientId: 'app-id',
  clientSecret: 'super-secret',
  redirectUrl: 'com.app://redirect',
  scopes: ['activity', 'sleep'],
  serviceConfiguration: {
    authorizationEndpoint: 'https://domain/authorize',
    tokenEndpoint: 'https://domain.tld/token',
    revocationEndpoint: 'https://domain.tld/revoke'
  }
};

auth(config).then(result => {
  console.log(result);
}).catch(e => {
  console.error(e);
});