diff --git a/core/modules/node/node.api.php b/core/modules/node/node.api.php
index 9ae46d6..181979a 100644
--- a/core/modules/node/node.api.php
+++ b/core/modules/node/node.api.php
@@ -148,7 +148,7 @@ function hook_node_grants(\Drupal\Core\Session\AccountInterface $account, $op) {
  * @param \Drupal\node\NodeInterface $node
  *   The node that has just been saved.
  *
- * @return
+ * @return array
  *   An array of grants as defined above.
  *
  * @see node_access_write_grants()
@@ -209,7 +209,7 @@ function hook_node_access_records(\Drupal\node\NodeInterface $node) {
  *
  * A module may deny all access to a node by setting $grants to an empty array.
  *
- * @param $grants
+ * @param array $grants
  *   The $grants array returned by hook_node_access_records().
  * @param \Drupal\node\NodeInterface $node
  *   The node for which the grants were acquired.
@@ -364,7 +364,7 @@ function hook_node_access(\Drupal\node\NodeInterface $node, $op, \Drupal\Core\Se
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being displayed in a search result.
- * @param $langcode
+ * @param object $langcode
  *   Language code of result being displayed.
  *
  * @return array
@@ -391,7 +391,7 @@ function hook_node_search_result(\Drupal\node\NodeInterface $node, $langcode) {
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being indexed.
- * @param $langcode
+ * @param object $langcode
  *   Language code of the variant of the node being indexed.
  *
  * @return string
@@ -424,9 +424,9 @@ function hook_node_update_index(\Drupal\node\NodeInterface $node, $langcode) {
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being validated.
- * @param $form
+ * @param array $form
  *   The form being used to edit the node.
- * @param $form_state
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  *
  * @ingroup entity_crud
@@ -451,9 +451,9 @@ function hook_node_validate(\Drupal\node\NodeInterface $node, $form, \Drupal\Cor
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node entity being updated in response to a form submission.
- * @param $form
+ * @param array $form
  *   The form being used to edit the node.
- * @param $form_state
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  *
  * @ingroup entity_crud
@@ -488,7 +488,7 @@ function hook_node_submit(\Drupal\node\NodeInterface $node, $form, \Drupal\Core\
  * and then the weighted scores from all ranking mechanisms are added, which
  * brings about the same result as a weighted average.
  *
- * @return
+ * @return array
  *   An associative array of ranking data. The keys should be strings,
  *   corresponding to the internal name of the ranking mechanism, such as
  *   'recent', or 'comments'. The values should be arrays themselves, with the