/**
* Returns an array of supported actions for the current entity form.
*
+ * This function generates a list of Form API elements which represent
+ * actions supported by the current entity form.
+ *
+ * @param array $form
+ * An associative array containing the structure of the form.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The current state of the form.
+ *
+ * @return array
+ * An array of supported Form API action elements keyed by name.
+ *
* @todo Consider introducing a 'preview' action here, since it is used by
* many entity types.
*/