https://api.drupal.org/api/drupal/core%21modules%21migrate%21src%21Plugin%21migrate%21source%21EmptySource.php/11.x
EmptySource.php | Drupal API
phpdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21migrate_drupal%21src%21Plugin%21migrate%21source%21EmptySource.php/class/EmptySource/8.9.x
class EmptySource | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21migrate%21src%21Plugin%21migrate%21source%21EmptySource.php/class/EmptySource/8.9.x
class EmptySource | Drupal API
classdrupalapi
https://api.drupal.org/api/drupal/core%21modules%21migrate_drupal%21src%21Plugin%21migrate%21source%21EmptySource.php/class/hierarchy/EmptySource/8.9.x
EmptySource | Drupal API
drupalapi