public void setDataSizeInBytes(Long dataSizeInBytes) {
        this.dataSizeInBytes = dataSizeInBytes;
    }
<p>
The total size of observations in the data files.
</p>

@param dataSizeInBytes
       The total size of observations in the data files.
aws-java-sdk-machinelearning/src/main/java/com/amazonaws/services/machinelearning/model/GetDataSourceResult.java