def decr(self, name, amount=1):
        """
        Decrements the value of ``key`` by ``amount``.  If no key exists,
        the value will be initialized as 0 - ``amount``
        """
        # An alias for ``decr()``, because it is already implemented
        # as DECRBY redis command.
        return self.decrby(name, amount)

        Decrements the value of ``key`` by ``amount``.  If no key exists,
        the value will be initialized as 0 - ``amount``
        
stackoverflow/venv/lib/python3.6/site-packages/redis/client.py