 	public let emailAddress: String?
 	
 	public init?(authorID: String?, name: String?, url: String?, avatarURL: String?, emailAddress: String?) {
-
 		if name == nil && url == nil && emailAddress == nil {
 			return nil
 		}

		}
	}

	public struct Key {
		static let authorID = "authorID"
		static let name = "name"
		static let url = "url"
		static let avatarURL = "avatarURL"
		static let emailAddress = "emailAddress"
	}

	public init?(dictionary: [String: Any]) {

		self.init(authorID: dictionary[Key.authorID] as? String, name: dictionary[Key.name] as? String, url: dictionary[Key.url] as? String, avatarURL: dictionary[Key.avatarURL] as? String, emailAddress: dictionary[Key.emailAddress] as? String)
	}

	public var dictionary: [String: Any] {

		var d = [String: Any]()

		d[Key.authorID] = authorID

		if let name = name {
			d[Key.name] = name
		}
		if let url = url {
			d[Key.url] = url
		}
		if let avatarURL = avatarURL {
			d[Key.avatarURL] = avatarURL
		}
		if let emailAddress = emailAddress {
			d[Key.emailAddress] = emailAddress
		}

		return d
	}

	public static func authorsWithJSON(_ jsonString: String) -> Set<Author>? {
		// This is JSON stored in the database, not the JSON Feed version of an author.
		guard let data = jsonString.data(using: .utf8) else {

		}
		return nil
	}
}

extension Set where Element == Author {

	public func json() -> String? {
		let encoder = JSONEncoder()
