code: public void marshall(Alias alias, ProtocolMarshaller protocolMarshaller) {
  
          if (alias == null) {
              throw new SdkClientException("Invalid argument passed to marshall(...)");
          }
  
          try {
              protocolMarshaller.marshall(alias.getAliasId(), ALIASID_BINDING);
              protocolMarshaller.marshall(alias.getName(), NAME_BINDING);
              protocolMarshaller.marshall(alias.getAliasArn(), ALIASARN_BINDING);
              protocolMarshaller.marshall(alias.getDescription(), DESCRIPTION_BINDING);
              protocolMarshaller.marshall(alias.getRoutingStrategy(), ROUTINGSTRATEGY_BINDING);
              protocolMarshaller.marshall(alias.getCreationTime(), CREATIONTIME_BINDING);
              protocolMarshaller.marshall(alias.getLastUpdatedTime(), LASTUPDATEDTIME_BINDING);
          } catch (Exception e) {
              throw new SdkClientException("Unable to marshall request to JSON: " + e.getMessage(), e);
          }
      }
docs: Marshall the given parameter object.