anchor.diff:  
     connection.then((request){
   
  +    request.headers.set(HttpHeaders.USER_AGENT, userAgent);
       request.headers.set(HttpHeaders.AUTHORIZATION, "token $token");
   
       request.done.then((response){
  
positive.code:           "description": "Auto-generated Dart client library to access the $name $version API"
          }
      );
      request.headers.set(HttpHeaders.AUTHORIZATION, "token $token");
      request.headers.set(HttpHeaders.CONTENT_TYPE, "application/json");
      request.headers.set(HttpHeaders.CONTENT_LENGTH, "${data.length}");
  
negative.code:     connection
        .then((request){
          var data = JSON.stringify({"scopes": ["repo"], "note": "API Client Generator"});
          request.headers.set(HttpHeaders.USER_AGENT, userAgent);
          request.headers.set(HttpHeaders.CONTENT_TYPE, "application/json");
          request.headers.set(HttpHeaders.CONTENT_LENGTH, "${data.length}");
          request.headers.set(HttpHeaders.USER_AGENT, userAgent);
  
          request.write(data);
          request.done
  