Laravel\Envoy\Console\SshCommand::getServer PHP Method

    protected function getServer(TaskContainer $container)
    {
        if ($this->argument('name')) {
            return $container->getServer($this->argument('name'));
        } elseif ($container->hasOneServer()) {
            return $container->getFirstServer();
        } else {
            throw new \InvalidArgumentException('Please provide a server name.');
        }
    }