getCustomFieldsAware example

        $entity->setFields($fields);
        static::assertEquals($fields, $entity->getFields());

        $flags = [];

        $entity->setFlags($flags);
        static::assertEquals($flags, $entity->getFlags());

        $entity->setCustomFieldsAware(true);
        static::assertTrue($entity->getCustomFieldsAware());

        $entity->setLabelProperty('name');
        static::assertEquals('name', $entity->getLabelProperty());
    }
}