code: public void setCaptionLanguageMappings(java.util.Collection<HlsCaptionLanguageMapping> captionLanguageMappings) {
          if (captionLanguageMappings == null) {
              this.captionLanguageMappings = null;
              return;
          }
  
          this.captionLanguageMappings = new java.util.ArrayList<HlsCaptionLanguageMapping>(captionLanguageMappings);
      }
docs: Language to be used on Caption outputs
  
  @param captionLanguageMappings
  Language to be used on Caption outputs