setLastInstalledFieldStorageDefinitions example

$this->keyValueFactory->get('entity.definitions.installed')->set($entity_type_id . '.field_storage_definitions', $storage_definitions);
    $this->cacheBackend->delete($entity_type_id . '.field_storage_definitions.installed');
  }

  /** * {@inheritdoc} */
  public function setLastInstalledFieldStorageDefinition(FieldStorageDefinitionInterface $storage_definition) {
    $entity_type_id = $storage_definition->getTargetEntityTypeId();
    $definitions = $this->getLastInstalledFieldStorageDefinitions($entity_type_id);
    $definitions[$storage_definition->getName()] = $storage_definition;
    $this->setLastInstalledFieldStorageDefinitions($entity_type_id, $definitions);
  }

  /** * {@inheritdoc} */
  public function deleteLastInstalledFieldStorageDefinition(FieldStorageDefinitionInterface $storage_definition) {
    $entity_type_id = $storage_definition->getTargetEntityTypeId();
    $definitions = $this->getLastInstalledFieldStorageDefinitions($entity_type_id);
    unset($definitions[$storage_definition->getName()]);
    $this->setLastInstalledFieldStorageDefinitions($entity_type_id, $definitions);
  }

}

$entity_type_id = $entity_type->id();

    // @todo Forward this to all interested handlers, not only storage, once     // iterating handlers is possible: https://www.drupal.org/node/2332857.     $storage = $this->entityTypeManager->getStorage($entity_type_id);
    if ($storage instanceof EntityTypeListenerInterface) {
      $storage->onEntityTypeCreate($entity_type);
    }

    $this->entityLastInstalledSchemaRepository->setLastInstalledDefinition($entity_type);
    if ($entity_type->entityClassImplements(FieldableEntityInterface::class)) {
      $this->entityLastInstalledSchemaRepository->setLastInstalledFieldStorageDefinitions($entity_type_id, $this->entityFieldManager->getFieldStorageDefinitions($entity_type_id));
    }

    $this->eventDispatcher->dispatch(new EntityTypeEvent($entity_type), EntityTypeEvents::CREATE);
    $this->clearCachedDefinitions();
  }

  /** * {@inheritdoc} */
  public function onFieldableEntityTypeCreate(EntityTypeInterface $entity_type, array $field_storage_definitions) {
    $entity_type_id = $entity_type->id();