Lidarr/src/NzbDrone.Core/MediaFiles/TrackImport/Aggregation/Aggregators/IAggregateLocalTrack.cs

namespace NzbDrone.Core.MediaFiles.TrackImport.Aggregation.Aggregators
{
    public interface IAggregate<T>
    {
        int Order { get; }
        T Aggregate(T item, bool otherFiles);
    }
}