public void setNextBackwardToken(String nextBackwardToken) {
        this.nextBackwardToken = nextBackwardToken;
    }
<p>
The token for the next set of items in the backward direction. The token expires after 24 hours. This token is
not null. If you have reached the end of the stream, it returns the same token you passed in.
</p>

@param nextBackwardToken
       The token for the next set of items in the backward direction. The token expires after 24 hours. This
       token is not null. If you have reached the end of the stream, it returns the same token you passed in.
aws-java-sdk-logs/src/main/java/com/amazonaws/services/logs/model/GetLogEventsResult.java