public function setPartials(array $partials = array())
    {
        if (!isset($this->partialsLoader)) {
            $this->partialsLoader = new Mustache_Loader_ArrayLoader();
        }

        if (!$this->partialsLoader instanceof Mustache_Loader_MutableLoader) {
            throw new Mustache_Exception_RuntimeException('Unable to set partials on an immutable Mustache Loader instance');
        }

        $this->partialsLoader->setTemplates($partials);
    }