public void setSyncSessionToken(String syncSessionToken) {
        this.syncSessionToken = syncSessionToken;
    }
The SyncSessionToken returned by a previous call to ListRecords for this dataset and identity.

@param syncSessionToken
       The SyncSessionToken returned by a previous call to ListRecords for this dataset and identity.
aws-java-sdk-cognitosync/src/main/java/com/amazonaws/services/cognitosync/model/UpdateRecordsRequest.java