The GraphQL response from Firebase Data Connect.
It strives to match the GraphQL over HTTP spec. Note: Firebase Data Connect always responds with Content-Type:
        application/json. https://github.com/graphql/graphql-over-http/blob/main/spec/GraphQLOverHTTP.md#body
| JSON representation | 
|---|
{
  "data": {
    object
  },
  "errors": [
    {
      object ( | 
            
| Fields | |
|---|---|
data | 
              
                 
 The result of the execution of the requested operation. If an error was raised before execution begins, the data entry should not be present in the result. (a request error: https://spec.graphql.org/draft/#sec-Errors.Request-Errors) If an error was raised during the execution that prevented a valid response, the data entry in the response should be null. (a field error: https://spec.graphql.org/draft/#sec-Errors.Error-Result-Format)  | 
            
errors[] | 
              
                 
 Errors of this response. If the data entry in the response is not present, the errors entry must be present. It conforms to https://spec.graphql.org/draft/#sec-Errors.  |