def _urlsafe_b64decode(b64string):

  b64string = b64string.encode('ascii')
  padded = b64string + '=' * ((len(b64string) - 4) % 4)
  return base64.urlsafe_b64decode(padded)
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/endpoints/users_id_token.py/_urlsafe_b64decode/swapped operands of `-`