code: public Float getValueFloat(String label) {
          PrimitiveObject o = getPrimitiveObject(VALUE, label, ObjectUtil.FLOAT, "Float");
          if (o == null) {
              return null;
          }
          return (Float) o.getObject();
      }
docs: Get value {@link Float} value
  @param label target label
  @return {@link Float} value of the label. If it is not null.