title: Is it possible to get only Super administrators from GApps(all domains) under reseller,using reseller account
body: <p>I have a list of domains of all my gapps customers.I want to get only users who have super admin privilege for all those domains.I can fetch all users for the domain and iterate over them and filter out only supers admins. But it will be a lot of api calls.</p>
  
  <p>There has to be another way....</p>
  
  <p>Thanks.</p>