code: public void marshall(Slot slot, ProtocolMarshaller protocolMarshaller) {
  
          if (slot == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(slot.getName(), NAME_BINDING);
              protocolMarshaller.marshall(slot.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(slot.getSlotConstraint(), SLOTCONSTRAINT_BINDING);
              protocolMarshaller.marshall(slot.getSlotType(), SLOTTYPE_BINDING);
              protocolMarshaller.marshall(slot.getSlotTypeVersion(), SLOTTYPEVERSION_BINDING);
              protocolMarshaller.marshall(slot.getValueElicitationPrompt(), VALUEELICITATIONPROMPT_BINDING);
              protocolMarshaller.marshall(slot.getPriority(), PRIORITY_BINDING);
              protocolMarshaller.marshall(slot.getSampleUtterances(), SAMPLEUTTERANCES_BINDING);
              protocolMarshaller.marshall(slot.getResponseCard(), RESPONSECARD_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.