CacheableResponseTrait::getCacheableMetadata

public CacheableResponseTrait::getCacheableMetadata()

public function getCacheableMetadata() {
  // A trait doesn't have a constructor, so initialize the cacheability
  // metadata if that hasn't happened yet.
  if (!isset($this->cacheabilityMetadata)) {
    $this->cacheabilityMetadata = new CacheableMetadata();
  }

  return $this->cacheabilityMetadata;
}