gistfile1.txt

in enums.cs:
public enum AccountType {
    ALE =    0x736970
}

in iface.cs:

[BaseType (typeof (NSObject))]
interface AccountSettings  {

}

[BaseType (typeof (NSObject))]
interface Account  {
   [Static, Export ("createAccountType:withSettings:")]
   Account Create (AccountType type,  AccountSettings settings);

   [Export ("getSettings")]
   AccountSettings Settings {get;}
}

[BaseType (typeof (NSObject)), Model]
interface AleAccountListener  {
}

[BaseType (typeof (NSObject))]
interface AleAccount  {
    [Export ("setAccountListener:")]
    void SetListener (AleAccountListener sil);

    [Export ("connect:")]
    void Connect (uint expires);

    [Export ("disconnect")]
    void Disconnect ();

    [Export ("disconnectAll")]
    void DisconnectAll ();
}