C# - Generic Action Dispatchers w/ Built-in null check

gistfile1.txt

public class ActionDispatcher {
        protected void Dispatch(Action action) {
            if (action != null) {
                action();
            }
        }
        protected void Dispatch<T0>(Action<T0> action, T0 param0) {
            if (action != null) {
                action(param0);
            }
        }
        protected void Dispatch<T0, T1>(Action<T0, T1> action, T0 param0, T1 param1) {
            if (action != null) {
                action(param0, param1);
            }
        }
        protected void Dispatch<T0, T1, T2>(Action<T0, T1, T2> action, T0 param0, T1 param1, T2 param2) {
            if (action != null) {
                action(param0, param1, param2);
            }
        }
        protected void Dispatch<T0, T1, T2, T3>(Action<T0, T1, T2, T3> action, T0 param0, T1 param1, T2 param2, T3 param3) {
            if (action != null) {
                action(param0, param1, param2, param3);
            }
        }
}