```php
# load template file. first argument is the template name,
# second is the addon path relative to friendica top folder
-$tpl = get_markup_template('mytemplate.tpl', 'addon/addon_name/');
+$tpl = Renderer::getMarkupTemplate('mytemplate.tpl', 'addon/addon_name/');
# apply template. first argument is the loaded template,
# second an array of 'name' => 'values' to pass to template
-$output = replace_macros($tpl, array(
+$output = Renderer::replaceMacros($tpl, array(
'title' => 'My beautiful addon',
));
```