# Create a WWW::Contact object as usual
    my $wc = WWW::Contact->new;

    # Then we need to update the '' known_supplier
    # to use this GoogleContactsAPIOAuth2 module instead of the
    # default GoogleContactsAPI module.
    my $ks = $wc->known_supplier;
    $ks->{''} = 'GoogleContactsAPIOAuth2';
    $wc->known_supplier( $ks );

    # Pass in the access_token as the password
    # And you get the contacts using OAuth rather than AuthSub with user/pass
    my $contacts = $wc->get_contacts( $email, $access_token );


    This module allows you to get google contacts using an OAuth2 token
    (Can be gotten with L<Net::Oauth2::Client>), rather than using AuthSub
    with a username/passwerd.  Google has begun warning users when third
    parties access their account with username/password, so it is becoming bad
    practice to do so.  Using OAuth avoids this problem.

    To use this module, you need to use something like L<Net::Oauth2::Client>
    to retrieve a valid access token for the desired user.  Then you need to
    replace the default C<known_supplier> for C<> with
    L<GoogleContactsAPIOAuth2> as shown above in the synopsis.  Then you simply
    pass that C<OAuth> access token as the C<password> field when you call
    get_contacts, and you get all of the contacts using OAuth.