Add 3rd arg to deprecation notice

ockham · ockham · commit 5572a1d71957 · 2023-09-26T17:24:02.000+02:00
diff --git a/src/wp-includes/block-template-utils.php b/src/wp-includes/block-template-utils.php
@@ -475,14 +475,18 @@ function _flatten_blocks( &$blocks ) {
  * stylesheet as a theme attribute into each wp_template_part
  *
  * @since 5.9.0
- * @deprecated 6.4.0 Use _inject_theme_attribute_in_template_part_block() with traverse_and_serialize_blocks() instead.
+ * @deprecated 6.4.0 Use traverse_and_serialize_blocks( parse_blocks( $template_content ), '_inject_theme_attribute_in_template_part_block' ) instead.
  * @access private
  *
  * @param string $template_content serialized wp_template content.
  * @return string Updated 'wp_template' content.
  */
 function _inject_theme_attribute_in_block_template_content( $template_content ) {
-	_deprecated_function( __FUNCTION__, '6.4.0' );
+	_deprecated_function(
+		__FUNCTION__,
+		'6.4.0',
+		'traverse_and_serialize_blocks( parse_blocks( $template_content ), "_inject_theme_attribute_in_template_part_block" )'
+	);
 
 	$has_updated_content = false;
 	$new_content         = '';
