{
  "errors": [
    {
      "message": "Support for returning GraphQLObjectType from resolveType was removed in graphql-js@16.0.0 please return type name instead.",
      "locations": [
        {
          "line": 2,
          "column": 3
        }
      ],
      "path": [
        "hero"
      ]
    }
  ],
  "data": {
    "hero": null
  }
}