hunk.code_window:     handleError(err, res) { // eslint-disable-line no-unused-vars
           // NO-OP for inherited classes to override
       }
       handleResponse(methodName, successCallback, errorCallback, err, res) {
           if (res && res.header) {
               this.serverVersion = res.header[HEADER_X_VERSION_ID];
               if (res.header[HEADER_X_VERSION_ID]) {
  
hunk.labels: keep keep keep add keep keep keep keep
hunk.after_edit:     handleSuccess(res) { // eslint-disable-line no-unused-vars
           // NO-OP for inherited classes to override
       }
  
hunk.file_path: webapp/client/client.jsx
hunk.type: add