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: [12.291, -19.598, 15, 5.209, 30.877, 25.836, 4.329, 15]

[15, 15]