code: public void marshall(Room room, ProtocolMarshaller protocolMarshaller) {
  
          if (room == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(room.getRoomArn(), ROOMARN_BINDING);
              protocolMarshaller.marshall(room.getRoomName(), ROOMNAME_BINDING);
              protocolMarshaller.marshall(room.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(room.getProviderCalendarId(), PROVIDERCALENDARID_BINDING);
              protocolMarshaller.marshall(room.getProfileArn(), PROFILEARN_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.