def __init__(self, url_pattern):
    self._url_pattern = url_pattern
A timeout policy for L{ClientService} which computes an exponential backoff
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/devappserver2/url_handler.py/URLHandler.__init__--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/application/internet.py/backoffPolicy