<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def is_newer_than(after, seconds):
 """Return True if after is newer than seconds."""

    if isinstance(after, six.string_types):
        after = parse_strtime(after).replace(tzinfo=None)
    else:
        after = after.replace(tzinfo=None)

    return after - utcnow() > datetime.timedelta(seconds=seconds)