+ * 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.
+ *