text: import Users from 'meteor/vulcan:users';
  
  const guestsActions = [
    "posts.view.approved"
  ];
  Users.groups.guests.can(guestsActions);
  
  const membersActions = [
    "posts.new", 
    "posts.edit.own", 
    "posts.remove.own",
  ];
  Users.groups.members.can(membersActions);
  
  const adminActions = [
    "posts.view.pending",
    "posts.view.rejected",
    "posts.view.spam",
    "posts.view.deleted",
    "posts.new.approved",
    "posts.edit.all",
    "posts.remove.all"
  ];
  Users.groups.admins.can(adminActions);
  