Form callback for the checkout settings form.
Overrides TranslatorPluginUiInterface::checkoutSettingsForm
public function checkoutSettingsForm(array $form, FormStateInterface $form_state, JobInterface $job) {
if (!Element::children($form)) {
$form['#description'] = t("The @translator translator doesn't provide any checkout settings.", array(
'@translator' => $job
->getTranslator()
->label(),
));
}
return $form;
}