code: public File export(String projectId, String language, FileTypeEnum fte, FilterByEnum[] filters){
          return export(projectId, language, fte, filters, null, null);
      }
docs: Export a translation for a language of a project.
  
  @param projectId id of the project
  @param language language code
  @param fte which type to export
  @param filters which filter to apply
  @return file object of the exported file