https://api.drupal.org/api/drupal/core%21modules%21user%21tests%21src%21Functional%21Rest%21UserResourceTestBase.php/property/UserResourceTestBase%3A%3AsecondCreatedEntityId/8.9.x
UserResourceTestBase::$secondCreatedEntityId | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21jsonapi%21tests%21src%21Functional%21UserTest.php/property/UserTest%3A%3AsecondCreatedEntityId/8.9.x
UserTest::$secondCreatedEntityId | Drupal API
drupalapi
https://api.drupal.org/api/drupal/core%21modules%21rest%21tests%21src%21Functional%21EntityResource%21EntityResourceTestBase.php/property/EntityResourceTestBase%3A%3AsecondCreatedEntityId/11.x
EntityResourceTestBase::$secondCreatedEntityId | Drupal API
drupalapi