src/Service/TrackService.php
public function getInfo(TrackInfoBuilder $builder): ?SongInfo
    {
        $response = $this->client->unsignedCall('track.getInfo', $builder->getQuery());

        if (!isset($response['track'])) {
            return null;
        }

        return SongInfo::fromApi($response['track']);
    }
public function getInfo(TrackInfoBuilder $builder): ?SongInfo
    {
        $response = $this->client->unsignedCall('track.getInfo', $builder->getQuery());

        if (!isset($response['track'])) {
            return null;
        }

        return SongInfo::fromApi($response['track']);
    }
{@inheritdoc}