code: public DescribeVpcEndpointServicesResult withServiceNames(String... serviceNames) {
          if (this.serviceNames == null) {
              setServiceNames(new com.amazonaws.internal.SdkInternalList<String>(serviceNames.length));
          }
          for (String ele : serviceNames) {
              this.serviceNames.add(ele);
          }
          return this;
      }
docs: <p>
  A list of supported services.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setServiceNames(java.util.Collection)} or {@link #withServiceNames(java.util.Collection)} if you want to
  override the existing values.
  </p>
  
  @param serviceNames
  A list of supported services.
  @return Returns a reference to this object so that method calls can be chained together.