[DoStuff_WithData]
fixture_class=testrepo.fixtures.SomeTestFixtureA
dsl=testrepo.dsl.SomeDatasetList
mixin_test_classes=
    testrepo.test_mixins.TestMixinClass1
    testrepo.test_mixins.TestMixinClass2
    testrepo.test_mixins.TestMixinClass3