Index: src/wp-includes/rest-api.php
===================================================================
--- src/wp-includes/rest-api.php	(revision 43966)
+++ src/wp-includes/rest-api.php	(working copy)
@@ -1112,7 +1112,7 @@
  *
  * @param mixed $value The value to sanitize.
  * @param array $args  Schema array to use for sanitization.
- * @return true|WP_Error
+ * @return int|float|string|array|boolean
  */
 function rest_sanitize_value_from_schema( $value, $args ) {
 	if ( 'array' === $args['type'] ) {