Simple default retry policy for non-idempotent targets.
If your target is idempotent, use default_retry instead.
Retries on 429
(Too Many Requests) and 503
(Service Unavailable), as well
as on ConnectionFailedError
.
Uses max_retries
of 5, and backoff
as per retry.default_backoff
.
For more information, see Retry steps.