Usage of the custom attribute in the meta module

NancyCustomAttributeUsageMetadata.cs

public class InfoMetadataModule : MetadataModule<CustomMetadata>
{
    public InfoMetadataModule()
    {
        var metaData = GetCustomMetadata();

        foreach (var entry in metaData)
        {
            Describe[entry.Name] = x => new CustomMetadata(x, entry.Description);
        }
    }

    private List<RouteDescriptionAttribute> GetCustomMetadata()
    {
        return (from constructor in typeof(InfoModule).GetConstructors()
            from attribute in constructor.GetCustomAttributes<RouteDescriptionAttribute>()
            select attribute).ToList();
    }
}