code: def list_servers
        Util.cachier('list_servers') do
          Client.servers.sort_by { |hsh| hsh['last_reported_at'] }.collect do |server|
            {
              name: server['name'],
              last_reported_at: server['last_reported_at'],
              id: server['id'],
              reporting: server['reporting']
            }
          end
        end
      end
docs: =>    Servers    <= 
  
   => Servers with the oldest `last_reported_at` will be at the top