public List<Polygon> getPolygons(String name, int indexBegin, int indexEnd) {
	  return builder.getPolygons(name, indexBegin, indexEnd);
  }
public List < Polygon > getPolygons ( String name , int indexBegin , int indexEnd ) { return builder . getPolygons ( name , indexBegin , indexEnd ) ; }
Given a Variable name and a beginning index and end index, returns a list of
polygon (inclusive on both sides)

@param name
@param indexBegin
@param indexEnd
@return