initFieldValues example

/** * {@inheritdoc} */
  protected function doCreate(array $values) {
    $bundle = $this->getBundleFromValues($values);
    if ($this->bundleKey && !$bundle) {
      throw new EntityStorageException('Missing bundle for entity type ' . $this->entityTypeId);
    }
    $entity_class = $this->getEntityClass($bundle);
    $entity = new $entity_class([], $this->entityTypeId, $bundle);
    $this->initFieldValues($entity, $values);
    return $entity;
  }

  /** * {@inheritdoc} */
  public function getBundleFromClass(string $class_name): ?string {
    $bundle_for_class = NULL;

    foreach ($this->entityTypeBundleInfo->getBundleInfo($this->entityTypeId) as $bundle => $bundle_info) {
      if (!empty($bundle_info['class']) && $bundle_info['class'] === $class_name) {