docs: public DescribeParameterGroupsRequest withParameterGroupNames(String... parameterGroupNames) {
          if (this.parameterGroupNames == null) {
              setParameterGroupNames(new java.util.ArrayList<String>(parameterGroupNames.length));
          }
          for (String ele : parameterGroupNames) {
              this.parameterGroupNames.add(ele);
          }
          return this;
      }