{
  "id": "page-has-heading-one",
  "evaluate": "has-descendant-evaluate",
  "after": "has-descendant-after",
  "options": {
    "selector": "h1:not([role], [aria-level]), :is(h1, h2, h3, h4, h5, h6):not([role])[aria-level=1], [role=heading][aria-level=1]"
  },
  "metadata": {
    "impact": "moderate",
    "messages": {
      "pass": "Page has at least one level-one heading",
      "fail": "Page must have a level-one heading"
    }
  }
}