public GetDataSetDetailsResult withFileSize(Long fileSize) {
        setFileSize(fileSize);
        return this;
    }
<p>
File size of the dataset.
</p>

@param fileSize
       File size of the dataset.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mainframemodernization/src/main/java/com/amazonaws/services/mainframemodernization/model/GetDataSetDetailsResult.java