docs: public UpdateDomainNameRequest withDomainNameConfigurations(DomainNameConfiguration... domainNameConfigurations) {
          if (this.domainNameConfigurations == null) {
              setDomainNameConfigurations(new java.util.ArrayList<DomainNameConfiguration>(domainNameConfigurations.length));
          }
          for (DomainNameConfiguration ele : domainNameConfigurations) {
              this.domainNameConfigurations.add(ele);
          }
          return this;
      }