Omnipay\Alipay\Requests\AbstractAopRequest::validateBizContent PHP Method

    public function validateBizContent()
    {
        $data = $this->getBizContent();
        if (is_string($data)) {
            $data = json_decode($data, true);
        }
        foreach (func_get_args() as $key) {
            if (!array_has($data, $key)) {
                throw new InvalidRequestException("The biz_content {$key} parameter is required");
            }
        }
    }