Optimizely Languages

public interface IChildrenContentLoader {
    /// <summary>
    /// Get children from a parent/root content
    /// </summary>
    /// <param name="content">The parent or root content</param>
    /// <param name="languageId">Id of the source language</param>
    /// <param name="includeDescendents">Flag to indicate whether including descendants or not</param>
    /// <param name="includeRelatedContents">Flag to indicate whether including related content or not</param>
    /// <returns>List of content link that will get translated alongside root</returns>
    IEnumerable<ContentReference> GetChildrenContentsNeedToCopyOrTranslate(ContentReference content, string languageId, bool includeDescendents, bool includeRelatedContents);
}

bool CopyDataFromMasterBranch(ContentReference contentReference, string fromLanguageID,
  string toLanguageID, Func<object, object> transformOnCopyingValue,
  out ContentReference createdContentLink, bool autoPublish = false);

bool CreateLanguageBranch(ContentReference contentLink, string languageID,
  out ContentReference createdContentLink);

bool TranslateAndCopyDataFromMasterBranch(ContentReference contentReference,
  string fromLanguageID, string fromTwoLetterLanguageName, string toLanguageID,
  string toTwoLetterLanguageName, out ContentReference createdContentLink,
  bool autoPublish = false);

bool CopyDataFromMasterBranch(ContentReference contentReference, string fromLanguageID,  
  string toLanguageID, Func<object, object> transformOnCopyingValue,  
  bool autoPublish = false);

bool CreateLanguageBranch(ContentReference contentLink, string languageID);

bool TranslateAndCopyDataFromMasterBranch(ContentReference contentReference,  
  string fromLanguageID, string fromTwoLetterLanguageName, string toLanguageID,  
  string toTwoLetterLanguageName, bool autoPublish = false);

{
  "Episerver": {
    "CmsUI": {
      "LanguageManager": {
        "TranslateOrCopyContentAreaChildrenBlockForTypes": [
          "AlloyTemplates.Models.Pages.ExamplePage1",
          "AlloyTemplates.Models.Pages.ExamplePage2"
        ]
      }
    }
  }
}