namespace Tranga; public struct Chapter { public Publication publication { get; } public string? name { get; } public string? volumeNumber { get; } public string? chapterNumber { get; } public Chapter(Publication publication, string? name, string? volumeNumber, string? chapterNumber) { this.publication = publication; this.name = name; this.volumeNumber = volumeNumber; this.chapterNumber = chapterNumber; } }