admin_consumer/app/Service/SmartyRenderer.php

<?php
namespace App\Service;

use Hyperf\Context\ApplicationContext;
use Smarty;

class SmartyRenderer
{
    protected Smarty $smarty;

    public function __construct()
    {
        $this->smarty = new Smarty();
        $this->smarty->setTemplateDir(BASE_PATH . '/storage/view/');
        $this->smarty->setCompileDir(BASE_PATH . '/runtime/smarty/compile/');
        $this->smarty->setCacheDir(BASE_PATH . '/runtime/smarty/cache/');
    }

    public function render(string $template, array $data): string
    {
        foreach ($data as $key => $value) {
            $this->smarty->assign($key, $value);
        }
        return $this->smarty->fetch($template);
    }
}