I am starting the migration from Mailchimp API 2.0 - 3.0, and am essentially trying to replicate the methods I used before.
One task is to retrieve all of the members email addresses on a particular list
currently I have
$result = $MailChimp->get('/lists/'.$list_id.'/members/');
which returns a members array, but I can't figure out how to add the fields parameter to the url so I only retrieve the fields I want, (eg fname, email address)