def wizard_input_verification(form):
    """ Verification, if the entered lines are unique. Used during time measure wizard.
    """
    # Note,that key must start with line_..., other options are ignored, to allow DNF option to work
    lines = [value for key, value in form.items() if key.startswith("line")]
    # if the entered lines are unique, they will have the same value
    if len(lines) != len(set(lines)):
        return False
    else:
        return True