public DescribeObjectResult withETag(String eTag) {
        setETag(eTag);
        return this;
    }
<p>
The ETag that represents a unique instance of the object.
</p>

@param eTag
       The ETag that represents a unique instance of the object.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mediastoredata/src/main/java/com/amazonaws/services/mediastoredata/model/DescribeObjectResult.java