responseTransformer not transforming data

Hi! I am using the apollo-link-rest for querying an SQL database on a Laraval Back-end.
The querying works perfectly and the transformer actually gets triggered. However, when I return the data through useQuery(), the transformed data reverts to the untransformed state. I was wondering if maybe my transformer doesn’t return the right output, or that it gets bypassed.
I use the transformer to add the meta tags to the response in order to use them in the front end (pagination).
Desired output:

data {
  meta: Object 

My transformer:

Anyone an idea to why the transformer doesn’t return the right data?