如果在上下文中传递函数名称，Dust PHP会尝试调用函数

I'm using the PHP fork of dustjs: http://cretz.github.io/dust-php/

The following code works fine:

$compiled = $dust->compile('Hi {name}.');
echo $dust->renderTemplate($compiled, ['name' => 'John Doe']);

But the following fails:

echo $dust->renderTemplate($compiled, ['name' => 'link']);

with this error:

PHP Warning:  link() expects parameter 1 to be a valid path, object given in /var/www/grallo2/vendor/dust-php/dust-php/src/Dust/Evaluate/Evaluator.php on line 342

It seems dust is trying to execute PHP functions. Is there any way to avoid this?