Overrides ParagraphsBehaviorBase::submitConfigurationForm
public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
$this->configuration['field_name'] = $form_state
->getValue('field_name');
// Only save the selected checkbox options to the config
// and convert it to ['machine_name' => 'Label'].
$slider_optionsets = array_intersect_key($this
->getAllOptionSet(), array_flip($form_state
->getValue('slick_slider')));
$this->configuration['slick_slider'] = array_keys($slider_optionsets);
}