public MutableIntSet asGscSet(List<T> list){
  return asSet(list,this,new IntHashSet());
}

public MutableIntSet asGscSet ( List < T > list ) { return asSet ( list , this , new IntHashSet ( ) ) ; }
extracts the int values represented by this attribute from the list and puts them in a set . if the int attribute is null , it ' s ignored .
