1. Define a function and call it calc_avg ( ) 2. The function must accept one argument. Call the argument my myList.
3. The list must be a list of integers values such as: L1 = [10, 22, 78, 56]
4. Call the function calc_avg ( L1 ) in a way that the list L1 is passed as an argument
The function must calculate the average of the integer values in the list and print the results.

You can use the built-in function len (listname).