docs: public RangeSet<Double> getContinuousDomain(){
  		Field<?> field = getField();
  
  		if(field instanceof HasContinuousDomain){
  			RangeSet<Double> validRanges = FieldUtil.getValidRanges((Field & HasContinuousDomain)field);
  
  			if(validRanges != null && !validRanges.isEmpty()){
  				return validRanges;
  			}
  		}
  
  		return null;
  	}