NoLanguageEntityTest.php

<?php

declare (strict_types=1);
namespace Drupal\language_test\Entity;

use Drupal\Core\Entity\Attribute\ContentEntityType;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\Core\Entity\ContentEntityBase;
use Drupal\Core\Entity\EntityTypeInterface;
use Drupal\Core\Field\BaseFieldDefinition;
use Drupal\entity_test\EntityTestViewsData;

/**
 * Defines the test entity class.
 */
class NoLanguageEntityTest extends ContentEntityBase {
    
    /**
     * {@inheritdoc}
     */
    public static function baseFieldDefinitions(EntityTypeInterface $entity_type) {
        $fields['id'] = BaseFieldDefinition::create('integer')->setLabel(t('ID'))
            ->setDescription(t('The ID of the test entity.'))
            ->setReadOnly(TRUE)
            ->setSetting('unsigned', TRUE);
        $fields['uuid'] = BaseFieldDefinition::create('uuid')->setLabel(t('UUID'))
            ->setDescription(t('The UUID of the test entity.'))
            ->setReadOnly(TRUE);
        return $fields;
    }

}