public function tearDown()
{
if ($this->object_mono instanceof databox_field) {
$this->object_mono->delete();
}
if ($this->object_multi instanceof databox_field) {
$this->object_multi->delete();
}
$extra = $this->databox->get_meta_structure()->get_element_by_name('Bonoboyoyo');
if ($extra instanceof databox_field) {
$extra->delete();
}
parent::tearDown();
}