Unable to filter collection #308

require 'vendor/autoload.php';

$openstack = new OpenStack\OpenStack([
    'authUrl' => '{authUrl}',
    'region'  => '{region}',
    'user'    => [
        'id'       => '{userId}',
        'password' => '{password}'
    ],
    'scope'   => ['project' => ['id' => '{projectId}']]
]);
$compute = $openstack->computeV2();
$servers = $compute->listServers(true, [
    'flavorId'     => 'flavorId',
]);