public ReportDefinition withS3Prefix(String s3Prefix) {
        setS3Prefix(s3Prefix);
        return this;
    }
@param s3Prefix
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-costandusagereport/src/main/java/com/amazonaws/services/costandusagereport/model/ReportDefinition.java