System.Func<T1, T2, T3, T4, T5, TResult> public sealed delegate Func<T1, T2, T3, T4, T5, TResult> : MulticastDelegate Documentation Code namespace System { public delegate TResult Func<in T1, in T2, in T3, in T4, in T5, out TResult> (T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5); }