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: [-9.001, -60.602, -19, -26, -13.662, 26.797, -31.805, 42.979, 20, -20.424]

[-19, -26, 20]