{
  "id": "header-present",
  "evaluate": "has-descendant-evaluate",
  "after": "has-descendant-after",
  "options": {
    "selector": ":is(h1, h2, h3, h4, h5, h6):not([role]), [role=heading]"
  },
  "metadata": {
    "impact": "serious",
    "messages": {
      "pass": "Page has a heading",
      "fail": "Page does not have a heading"
    }
  }
}