def download_appstats(servername, appid, path, secure,
                      rpc_server_factory, filename, appdir,
                      merge, java_application):




  if os.path.isdir(appdir):
    sys.path.insert(0, appdir)
    try:
      logging.info('Importing appengine_config from %s', appdir)
      import appengine_config
    except ImportError, err:
      logging.warn('Failed to load appengine_config: %s', err)


  remote_api_stub.ConfigureRemoteApi(appid, path, auth_func,
                                     servername=servername,
                                     save_cookies=True, secure=secure,
                                     rpc_server_factory=rpc_server_factory)
  remote_api_stub.MaybeInvokeAuthentication()


  os.environ['SERVER_SOFTWARE'] = 'Development (remote_api_shell)/1.0'

  if not appid:

    appid = os.environ['APPLICATION_ID']
  download_data(filename, merge, java_application)
Invoke remote_api to download appstats data.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/download_appstats.py/download_appstats