$command = (new Command\Builder\FetchSet($riak))
->buildLocation($user_id, 'email_subscriptions', 'user_preferences')
->build();
$response = $command->execute();
$set = $response->getSet();
$command = (new Command\Builder\FetchSet($riak))
->buildLocation($user_id, 'email_subscriptions', 'user_preferences')
->build();
$response = $command->execute();
$set = $response->getSet();