eInstance(c *graphql.Client, resourceDetailsQuery string, expectedResource shared.ServiceInstance) (instanceQueryResponse, error) {  req := fixServiceInstanceRequest(resourceDetailsQuery, expectedResource)   var res instanceQueryResponse  err := c.Do(req, &res)   return res, err }  func fixServiceInstancesRequest(resourceDetailsQuery, namespace string) *graphql.Request {  query := fmt.Sprintf(`    query ($namespace: String!