code: public HlsGroupSettings withCaptionLanguageMappings(HlsCaptionLanguageMapping... captionLanguageMappings) {
          if (this.captionLanguageMappings == null) {
              setCaptionLanguageMappings(new java.util.ArrayList<HlsCaptionLanguageMapping>(captionLanguageMappings.length));
          }
          for (HlsCaptionLanguageMapping ele : captionLanguageMappings) {
              this.captionLanguageMappings.add(ele);
          }
          return this;
      }
docs: Language to be used on Caption outputs
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setCaptionLanguageMappings(java.util.Collection)} or
  {@link #withCaptionLanguageMappings(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param captionLanguageMappings
  Language to be used on Caption outputs
  @return Returns a reference to this object so that method calls can be chained together.