anchor.diff:    @ApiName("sha")
     String sha;
   
  -  @ApiName("url")
  +  @ApiName("html_url")
     String url;
   
     @ApiName("git_url")
     String gitUrl;
  -
  -  @ApiName("html_url")
  -  String htmlUrl;
   
     @ApiName("_links")
     FileLinks links;
  
positive.code:     fileLinks.html = input['html'];
      return fileLinks;
    }
  
  }
negative.code:     file.path = input['path'];
      file.content = input['content'];
      file.sha = input['sha'];
      file.gitUrl = input['git_url'];
      file.url = input['html_url'];
      file.links = FileLinks.fromJSON(input['_links']);
      return file;
    }
  