public ModifyDBInstanceRequest withBackupRetentionPeriod(Integer backupRetentionPeriod) {
        setBackupRetentionPeriod(backupRetentionPeriod);
        return this;
    }
<p>
Not applicable. The retention period for automated backups is managed by the DB cluster. For more information,
see <a>ModifyDBCluster</a>.
</p>
<p>
Default: Uses existing setting
</p>

@param backupRetentionPeriod
       Not applicable. The retention period for automated backups is managed by the DB cluster. For more
       information, see <a>ModifyDBCluster</a>.</p>
       <p>
       Default: Uses existing setting
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/ModifyDBInstanceRequest.java