allow authToken to be unlabeled

Author: roninopf

swift-sdk/IterableAPI.swift

@@ -123,11 +123,11 @@ public final class IterableAPI: NSObject {
 
     // MARK: - SDK
 
-    public static func setEmail(_ email: String?, authToken: String? = nil) {
+    public static func setEmail(_ email: String?, _ authToken: String? = nil) {
         internalImplementation?.setEmail(email, authToken: authToken)
     }
 
-    public static func setUserId(_ userId: String?, authToken: String? = nil) {
+    public static func setUserId(_ userId: String?, _ authToken: String? = nil) {
         internalImplementation?.setUserId(userId, authToken: authToken)
     }