public SourceFiles withSource1(String source1) {
        setSource1(source1);
        return this;
    }
<p>
The location of the first file in Amazon S3.
</p>

@param source1
       The location of the first file in Amazon S3.
@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/SourceFiles.java