System.Runtime by Microsoft

<PackageReference Include="System.Runtime" Version="4.0.20-beta-22605" />

.NET API 126,264 bytes

 Action<T1, T2, T3, T4, T5, T6, T7, T8, T9>

public sealed delegate Action<T1, T2, T3, T4, T5, T6, T7, T8, T9> : MulticastDelegate
public Action(object object, IntPtr method)

public virtual IAsyncResult BeginInvoke(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7, T8 arg8, T9 arg9, AsyncCallback callback, object object)

public virtual void EndInvoke(IAsyncResult __result)

public virtual void Invoke(T1 arg1, T2 arg2, T3 arg3, T4 arg4, T5 arg5, T6 arg6, T7 arg7, T8 arg8, T9 arg9)