code: protected void registerSpinnerAttributes() {
          addAttributeProcessor(new SpinnerArrayLmlAttribute(), "items");
          addAttributeProcessor(new SpinnerDisabledLmlAttribute(), "disabled", "inputDisabled");
          addAttributeProcessor(new SpinnerNameLmlAttribute(), "selectorName", "text");
          addAttributeProcessor(new SpinnerPrecisionLmlAttribute(), "precision", "scale");
          addAttributeProcessor(new SpinnerProgrammaticChangeEventsLmlAttribute(), "programmaticChangeEvents");
          addAttributeProcessor(new SpinnerSelectedLmlAttribute(), "selected");
          addAttributeProcessor(new SpinnerTextFieldEventPolicyLmlAttribute(), "textFieldEventPolicy");
          addAttributeProcessor(new SpinnerWrapLmlAttribute(), "wrap");
      }
docs: Spinner attributes.