public RetainStats biggestFree(Integer biggestFree) {
    
    this.biggestFree = biggestFree;
    return this;
  }
used size of memory in bytes
minimum: 0
maximum: 4294967295
@return used
plc4j/drivers/ctrlx/src/main/java/org/apache/plc4x/java/ctrlx/readwrite/rest/datalayer/model/RetainStats.java