title: Is it possible to obtain an access_token with expo-auth-session/providers/google?
body: <p>I am trying to obtain an access token for use with Google APIs using the up-to-date expo-auth-session package.</p>
  <p>It works fine to fetch an id_token via <code>useAuthRequest({responseType: &quot;id_token&quot;, ...})</code> or <code>useIdTokenAuthRequest({...})</code></p>
  <p>However, when trying <code>useAuthRequest({responseType: &quot;code&quot;, ...})</code>, I get the following error:</p>
  <blockquote>
  <p>[Unhandled promise rejection: Error: The request is missing a required parameter, includes an unsupported parameter value (other than grant type), repeats a parameter, includes multiple credentials, utilizes more than one mechanism for authenticating the client, or is otherwise malformed.]</p>
  </blockquote>
  <p>Does anyone know what is missing from the request? I am using the Expo Go app currently, so I'm not sure if that prevents obtaining an access token. Currently digging through the package's source code...</p>