mutation UpsertHelpCenterArticle($input: UpsertHelpCenterArticleInput!) {
  upsertHelpCenterArticle(input: $input) {
    helpCenterArticle {
      id
      title
      description
      icon
      contentHtml
      slug
    }
    error {
      message
      type
      code
      fields {
        field
        message
        type
      }
    }
  }
}

{
  "input": {
    "helpCenterId": "id",
    "title": "string",
    "contentHtml": "string"
  }
}

{
  "data": {
    "upsertHelpCenterArticle": {
      "helpCenterArticle": {
        "id": "id",
        "title": "string",
        "description": "string",
        "icon": "string",
        "contentHtml": "string",
        "slug": "string"
      },
      "error": {
        "message": "string",
        "type": "VALIDATION",
        "code": "string",
        "fields": [
          {
            "field": "string",
            "message": "string",
            "type": "VALIDATION"
          }
        ]
      }
    }
  }
}