Set Different Sizes for UIPickerView Rows

Is it possible to set a different size for each row in a UIPickerView or do they all need to have the same height?

This is what I've tried, but it returns the same height for all rows:

    public func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {    if component == 0 {        return 60    } else {        return 100    }}