code: public FutureAPIResponse unsetUserAsFuture(String uid, List<String> properties)
        throws IOException {
      return unsetUserAsFuture(uid, properties, new DateTime());
    }
docs: Sends an unset user properties request. Same as {@link #unsetUserAsFuture(String, List,
  DateTime) unsetUserAsFuture(String, List&lt;String&gt;, DateTime)} except event time is not
  specified and recorded as the time when the function is called.