--- syntax-before.php   2020-09-25 08:09:45.294662375 -0500
+++ syntax.php  2020-09-25 08:08:40.477774548 -0500
@@ -36,7 +36,7 @@
         $this->Lexer->addExitPattern(',,+', 'plugin_fontsize');
     }

-       function handle($match, $state, $pos, &$handler){
+       function handle($match, $state, $pos, Doku_Handler $handler){
                switch ($state) {
                        case DOKU_LEXER_ENTER:
                                if ($match{1} == '#')
@@ -50,7 +50,7 @@
                return array();
        }

-       function render($mode, &$renderer, $data) {
+       function render($mode, Doku_Renderer $renderer, $data) {
                if ($mode == 'xhtml') {
                        list($state, $match) = $data;
                        switch ($state) {