def check_assert_usage(lines):
    index = [(i + 1) for (i, s) in enumerate(lines) if ((('assert(' in s) and (not ('_assert(' in s))) and (s.strip()[0:2] != '//'))]
    if (len(index) > 0):
        return index
    else:
        return ''
def check_assert_usage(lines):
    index = [(i + 1) for (i, s) in enumerate(lines) if ((('assert(' in s) and (not ('_assert(' in s))) and (s.strip()[0:2] != '//'))]
    if (len(index) > 0):
        return index
    else:
        return 