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: [-20, 52, -0.291, -3.421, -82, -34, 18, 19.467, -6.012, -13.215]

[-20, 52, -82, -34, 18]