public ListReadSetUploadPartsRequest withPartSource(ReadSetPartSource partSource) {
        this.partSource = partSource.toString();
        return this;
    }
<p>
The source file for the upload part.
</p>

@param partSource
       The source file for the upload part.
@return Returns a reference to this object so that method calls can be chained together.
@see ReadSetPartSource
aws-java-sdk-omics/src/main/java/com/amazonaws/services/omics/model/ListReadSetUploadPartsRequest.java