EntityViewsData::getFieldStorageDefinitions

protected EntityViewsData::getFieldStorageDefinitions()

protected function getFieldStorageDefinitions() {
  if (!isset($this->fieldStorageDefinitions)) {
    $this->fieldStorageDefinitions = $this->entityManager->getFieldStorageDefinitions($this->entityType->id());
  }
  return $this->fieldStorageDefinitions;
}