Omnipay\Alipay\AbstractAopGateway::setEnvironment PHP Метод

    public function setEnvironment($value)
    {
        $env = strtolower($value);
        if (!isset($this->endpoints[$env])) {
            throw new InvalidRequestException('The environment is invalid');
        }
        $this->setEndpoint($this->endpoints[$env]);
        return $this;
    }