def Rollback(self):
    """Does a rollback of any existing transaction for this app version."""
    if len(self.args) >= 1:
      self.parser.error('Expected a single <directory> argument.')

    basepath = self.args[0]
    appyaml = self._ParseAppYaml(basepath)

    appversion = AppVersionUpload(self._GetRpcServer(), appyaml)
    appversion.in_transaction = True
    appversion.Rollback()
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/tools/appcfg.py/AppCfgApp.Rollback/operator `!=` -> `>=`