ActionIn this example, we define an Action called `printSum` that takes two integers as parameters (`int, int`) and uses a lambda expression to add them together and write the result to the console. We then invoke the `printSum` Action with the arguments `2` and `3`, which causes the lambda expression to execute and output the sum. The Action delegate is defined in the `System` namespace, so no additional package library is required.printSum = (a, b) => { int sum = a + b; Console.WriteLine($"The sum of {a} and {b} is {sum}"); }; printSum(2, 3); // Output: The sum of 2 and 3 is 5