#include "envoy/config/cluster/v4alpha/cluster.pb.h"
#include "envoy/config/cluster/v4alpha/cluster.pb.validate.h"
#include "envoy/protobuf/message_validator.h"

#include "common/protobuf/utility.h"

void foo(Envoy::ProtobufMessage::ValidationVisitor& validator) {
  envoy::config::cluster::v4alpha::Cluster msg;
  Envoy::MessageUtil::downcastAndValidate<const envoy::config::cluster::v4alpha::Cluster&>(msg, validator);
}