v3.HttpProtocolOptionsType: protoconv.MessageToAny(mc.httpProtocolOptions),
		}
	}
	return mc.cluster
}

// CastDestinationRule returns the destination rule enclosed by the config, if not null.
// Otherwise, return nil.
func CastDestinationRule(config *config.Config) *networking.DestinationRule {
	if config != nil {
		return config.Spec.(*networking.DestinationRule)
	}

	return nil
}