Flag indicating whether the field storage should be deleted when orphaned. By default field storages for configurable fields are removed when

public FieldStorageConfig::isBaseField()

public FieldStorageConfig::getPropertyDefinitions()

The entity manager. Type:

public static ConfigImporterFieldPurger::g

The field type plugin manager. Type: \Drupal\Core\Field\FieldTypePluginManagerInterface File

public FieldStorageConfig::getSettings()

Flag indicating whether the field is deleted. The

public FieldStorageConfig::getDescription()

public FieldStorageConfig::getType()