def decr_version(self, key, delta=1, version=None):
        return self.incr_version(key, -delta, version)
Get the fetch and push URL for a specified remote name.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/core/cache/backends/base.py/BaseCache.decr_version--crossover with--dataset/ETHPy150Open tony/vcspull/vcspull/repo/git.py/GitRepo.remote_get