code: 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;
      }
docs: <p>
  The domain name configurations.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDomainNameConfigurations(java.util.Collection)} or
  {@link #withDomainNameConfigurations(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param domainNameConfigurations
  The domain name configurations.
  @return Returns a reference to this object so that method calls can be chained together.