I'm back! Another question on using APIDataSet (which is now my child class that just casts auth to a tuple if its iterable). I want to do this in my `catalog.yml`:

yaml
api:
  type: MyAPIDataSet
  url: ...
  auth: 
    - ${username}
    - ${password}

where my credentials has:

yaml
username: me
password: my_password

I also tried:

catalog.yml

yaml
api:
  type: MyAPIDataSet
  url: ...
  auth: my_auth

credentials.yml

yaml
my_auth:
  - me
  - my_password

Am I not understanding how

credentials.yml

is supposed to work? Or is it just wonky when working with APIDataSet?