The spec for this action:
https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf#G11.2111850
An example of a form using this action:
https://www2.illinois.gov/rev/forms/reg/Documents/reg-1-mr.pdf
element.setAttribute("id", id);
    element.tabIndex = DEFAULT_TAB_INDEX;
    element.addEventListener("change", event => {
      const { name, checked } = event.target;
      for (const radio of this._getElementsByName(name,  id)) {
        storage.setValue(radio.id, { value: false });
      }
      storage.setValue(id, { value: checked });
    });
    if (this.enableScripting && this.hasJSActions) {
      const pdfButtonValue = data.buttonValue;
      element.addEventListener("updatefromsandbox", jsEvent => {
        const actions = {
          value: event => {
            const checked = pdfButtonValue === event.detail.value;
            for (const radio of this._getElementsByName(event.target.name)) {
              const curChecked = checked && radio.id === id;
              if (radio.domElement) {
                radio.domElement.checked = curChecked;
              }
              storage.setValue(radio.id, { value: curChecked });
            }
          },
        };
        this._dispatchEventFromSandbox(actions, jsEvent);
      });
      this._setEventListeners(
        element,
        [
          ["change", "Validate"],