/// <summary>
/// Initializes an instance of <see cref="Video"/>.
/// </summary>
public Video(string id, string author, DateTimeOffset uploadDate, string title, string description,
ThumbnailSet thumbnails, TimeSpan duration, IReadOnlyList <string> keywords, Statistics statistics, double loudness = 0)
{
Id = id.GuardNotNull(nameof(id));
Author = author.GuardNotNull(nameof(author));
UploadDate = uploadDate;
Title = title.GuardNotNull(nameof(title));
Description = description.GuardNotNull(nameof(description));
Thumbnails = thumbnails.GuardNotNull(nameof(thumbnails));
Duration = duration.GuardNotNegative(nameof(duration));
Keywords = keywords.GuardNotNull(nameof(keywords));
Statistics = statistics.GuardNotNull(nameof(statistics));
Loudness = loudness;
}