 
 import Foundation
 
-struct JSONFeed: Codable {
+public struct JSONFeed: Codable {
     
     let version: String
     let title: 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?
