         }
     }
     
-    struct Author: Codable {
+    public struct Author: Codable {
         
         let name: String?
         let url: String?
         let avatar: String?
     }
     
-    struct Hub: Codable {
+    public struct Hub: Codable {
         
         let type: String
         let url: String

    let expired: Bool?
    let hubs: [Hub]?
    
    struct Item: Codable {
        
        let id: AmbiguouslyTypedIdentifier
        let url: String?

        let tags: [String]?
        let attachments: [Attachment]?
        
        public struct Attachment: Codable {
            
            let url: String
            let mimeType: String?
