Constructs an EntityStorageControllerBase instance.
string $entity_type: The entity type for which the instance is created.
array $entity_info: An array of entity info for the entity type.
public function __construct($entity_type, $entity_info) {
$this->entityType = $entity_type;
$this->entityInfo = $entity_info;
// Check if the entity type supports static caching of loaded entities.
$this->cache = !empty($this->entityInfo['static_cache']);
}