tester GtkdocAnnotation annotation_array_length annotation_allow_none annotation_nullable annotation_not_nullable annotation_elementtype annotation_elementtype_transfer annotation_elementtype_returns annotation_outparams annotation_outparams_nullable annotation_outparams_not_nullable annotation_outparams_optional annotation_outparams_not_optional annotation_outparams_optional_nullable annotation_outparams_not_optional_nullable annotation_outparams_optional_not_nullable annotation_outparams_not_optional_not_nullable annotation_skip annotation_skip_return annotation_scope annotation_rename_to annotation_attributes_single annotation_attributes_single_eq stability_unstable annotation_multiline_on_function annotation_multiline_on_function2