getFormRadioLabel (text, req) {
    const el = document.createElement('label')

    if (this.options.custom_forms === false) {
      el.classList.add('form-check-label')
    } else {
      el.classList.add('custom-control-label')
    }

    el.appendChild(document.createTextNode(text))
    return el
  }
Add the <label> for the single radio from getFormRadio()