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

    public function validateBizContentOne()
    {
        $data = $this->getBizContent();
        if (is_string($data)) {
            $data = json_decode($data, true);
        }
        $keys = func_get_args();
        $allEmpty = true;
        foreach ($keys as $key) {
            if (array_has($data, $key)) {
                $allEmpty = false;
                break;
            }
        }
        if ($allEmpty) {
            throw new InvalidRequestException(sprintf('The biz_content (%s) parameter must provide one at least', implode(',', $keys)));
        }
    }