I parametrize the schema now to have a synchronous and an asynchronous for all relevant tests. This way every test reports with which schema it failed, while still avoiding to copy all the tests. Or are you referring to the changes I made on the lazy attributes of the SQLModels?

I still have to investigate why the batching tests using get_full_relay_schema are failing for me. Presumably, because I separated the batching models from the others, so the lazy attribute is not set on them.

I as well moved some assert statements in the batching tests. I had some bugs in them, which led to the result of querying the schema having an error and then of course wrong sql statement counts, too. However, first testing that no errors occur when calling the schema, before counting the SQL statements made the debugging a lot easier and the error more apparent.