public GetReferenceRequest withPartNumber(Integer partNumber) {
        setPartNumber(partNumber);
        return this;
    }
<p>
The part number to retrieve.
</p>

@param partNumber
       The part number to retrieve.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-omics/src/main/java/com/amazonaws/services/omics/model/GetReferenceRequest.java