docs: public void marshall(FacetAttribute facetAttribute, ProtocolMarshaller protocolMarshaller) {
  
          if (facetAttribute == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(facetAttribute.getName(), NAME_BINDING);
              protocolMarshaller.marshall(facetAttribute.getAttributeDefinition(), ATTRIBUTEDEFINITION_BINDING);
              protocolMarshaller.marshall(facetAttribute.getAttributeReference(), ATTRIBUTEREFERENCE_BINDING);
              protocolMarshaller.marshall(facetAttribute.getRequiredBehavior(), REQUIREDBEHAVIOR_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }