Update stubs.php

stubs.php

@@ -145,3 +145,37 @@ function fictioneer_get_cache_bust() {}
  */
 
 function wp_admin_notice( string $message, array $args = array() ) {}
+
+/**
+ * Wrapper to update user meta
+ *
+ * If the meta value is truthy, the meta field is updated as normal.
+ * If not, the meta field is deleted instead to keep the database tidy.
+ *
+ * @since 5.7.3
+ *
+ * @param int    $user_id     The ID of the user.
+ * @param string $meta_key    The meta key to update.
+ * @param mixed  $meta_value  The new meta value. If empty, the meta key will be deleted.
+ * @param mixed  $prev_value  Optional. If specified, only updates existing metadata with this value.
+ *                            Otherwise, update all entries. Default empty.
+ *
+ * @return int|bool Meta ID if the key didn't exist on update, true on successful update or delete,
+ *                  false on failure or if the value passed to the function is the same as the one
+ *                  that is already in the database.
+ */
+
+function fictioneer_update_user_meta( $user_id, $meta_key, $meta_value, $prev_value = '' ) {}
+
+/**
+ * Sanitizes a checkbox value into true or false
+ *
+ * @since 4.7.0
+ * @link https://www.php.net/manual/en/function.filter-var.php
+ *
+ * @param string|boolean $value  The checkbox value to be sanitized.
+ *
+ * @return boolean True or false.
+ */
+
+function fictioneer_sanitize_checkbox( $value ) {}