public WriteGetObjectResponseRequest withETag(String eTag) {
        this.eTag = eTag;
        return this;
    }
Set an opaque identifier assigned by a web server to a specific version of a resource found at a URL.

@return This object for method chaining.
aws-java-sdk-s3/src/main/java/com/amazonaws/services/s3/model/WriteGetObjectResponseRequest.java