message: This should be accessed by the importorskip thingy
diff: import duckdb
  import pytest
  -from substrait_validator import Config
  substrait_validator = pytest.importorskip('substrait_validator')
  @@ -9,7 +8,7 @@ def run_substrait_validator(con, query):
  con.table('lineitem')
  except:
  con.execute(f"CALL dbgen(sf=0.01)")
  - c = Config()
  + c = substrait_validator.Config()
  # not yet implemented: typecast validation rules are not yet implemented
  c.override_diagnostic_level(1, "warning", "info")
  # function definition unavailable: cannot check validity of call
  