/**
* {@inheritdoc}
*/
public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition)
{
$properties = parent::propertyDefinitions($field_definition);
$properties['pathauto'] = DataDefinition::create('integer')->setLabel(t('Pathauto state'))->setDescription(t('Whether an automated alias should be created or not.'))->setComputed(TRUE)->setClass('\\Drupal\\pathauto\\PathautoState');
return $properties;
}