src/View.php
public function renderInclude($name, $path = null)
    {
        if (!isset($this->view)) {
            throw new ViewException('Please Define view engine in app/View.php', 500);
        }

        if (!is_null($this->dir)) {
            $this->view->setTemplateDir($this->dir);
        }

        return $this->view->renderInclude($name, $path);
    }
public function renderInclude($name, $path = null)
    {
        if (!isset($this->view)) {
            throw new ViewException('Please Define view engine in app/View.php', 500);
        }

        if (!is_null($this->dir)) {
            $this->view->setTemplateDir($this->dir);
        }

        return $this->view->renderInclude($name, $path);
    }
File including

@param string $name
@param null   $path

@return mixed