Pay::config($config);

$order = [
    'out_order_no' => '202408040747147327',
    'out_refund_no' => '202408040747147327',
    'reason' => '测试',
    'refund_amount' => 1,
    // '_action' => 'mini', // 小程序退款，默认

];

$result = Pay::douyin()->refund($order);