LibCloud\Compute\Providers\DigitalOcean\DigitalOceanProvider::listSizes PHP Method

    public function listSizes($nodeSizeName = null)
    {
        $sizes = array_map([$this, 'toSize'], $this->digitalocean->size()->getAll());
        if ($nodeSizeName) {
            foreach ($sizes as $size) {
                if ($size->getName() == $nodeSizeName) {
                    return $size;
                }
            }
        }
        return $sizes;
    }