Select multiple folders using Google Picker

Question

I have a native application registered on Google Developers Console and I'm using a Web Application (AngularJS) to get permission from users.

Initially i get the code, i exchange it (on the server) for an auth_token & refresh_token and i try to use the google picker to let the user select folders form his GDrive account.

I can display a simple file picker but the problem is that i can't set up the PickerBuiler so the user could select multiple folders. Here is what I tried:

var docsView = new google.picker.DocsView()
    .setIncludeFolders(true)
    .setMimeTypes('application/vnd.google-apps.folder')
    .setSelectFolderEnabled(true);


var picker = new google.picker.PickerBuilder()
    .enableFeature(google.picker.Feature.MULTISELECT_ENABLED)
    .addView(docsView)
    .setOAuthToken(response.data.Value)
    .setDeveloperKey('0000000000')
    .build();

picker.setVisible(true);

-

var picker = new google.picker.PickerBuilder().
    addView(google.picker.ViewId.FOLDERS).
    enableFeature(google.picker.Feature.MULTISELECT_ENABLED).
    setOAuthToken(response.data.Value).
    setDeveloperKey('0000000000').
    build();
picker.setVisible(true);