AddCommandHandler(string,Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, Coroutine>)

public void AddCommandHandler<T1, T2, T3, T4, T5, T6, T7, T8, T9>(string commandName, Func<T1, T2, T3, T4, T5, T6, T7, T8, T9, Coroutine> handler);