func messagingSubscriberRetryOptions() []gax.CallOption {
	return []gax.CallOption{
		gax.WithTimeout(600000 * time.Millisecond),
		gax.WithDelayTimeoutSettings(100*time.Millisecond, 60000*time.Millisecond, 1.3),
		gax.WithRPCTimeoutSettings(12000*time.Millisecond, 12000*time.Millisecond, 1.0),
	}
}
func defaultMetricsRetryOptions() []gax.CallOption {
	return []gax.CallOption{
		gax.WithTimeout(45000 * time.Millisecond),
		gax.WithDelayTimeoutSettings(100*time.Millisecond, 1000*time.Millisecond, 1.2),
		gax.WithRPCTimeoutSettings(2000*time.Millisecond, 30000*time.Millisecond, 1.5),
	}
}
func defaultPublisherRetryOptions() []gax.CallOption {
	return []gax.CallOption{
		gax.WithTimeout(600000 * time.Millisecond),
		gax.WithDelayTimeoutSettings(100*time.Millisecond, 60000*time.Millisecond, 1.3),
		gax.WithRPCTimeoutSettings(60000*time.Millisecond, 60000*time.Millisecond, 1.0),
	}
}