code: def get_rooms(roomDistributionList)
        req = build_soap! do |type, builder|
          if(type == :header)
          else
            builder.nbuild.GetRooms {|x|
              x.parent.default_namespace = @default_ns
              builder.room_list!(roomDistributionList)
            }
          end
        end
        do_soap_request(req, response_class: EwsSoapRoomResponse)
      end
docs: Gets the rooms that are in the specified room distribution list
   @see http://msdn.microsoft.com/en-us/library/aa563465.aspx
   @param [string] roomDistributionList