Definition: In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
Input: [-22.115, -76, -0.027, -0.21, 68, -61, 97, 20]

[-76, 68, -61, 97, 20]