fix default arg

src/pystencils/backend/platforms/cuda.py

@@ -37,7 +37,7 @@ GRID_DIM = [
 class CudaPlatform(GenericGpu):
 
     def __init__(
-        self, ctx: KernelCreationContext, indexing_cfg: GpuIndexingConfig | None
+        self, ctx: KernelCreationContext, indexing_cfg: GpuIndexingConfig | None = None
     ) -> None:
         super().__init__(ctx)
         self._cfg = indexing_cfg if indexing_cfg is not None else GpuIndexingConfig()

tests/nbackend/kernelcreation/platform/test_basic_gpu.py

@@ -25,4 +25,4 @@ def test_loop_nest(layout):
     archetype_field = Field.create_generic("fzyx_field", spatial_dimensions=3, layout=layout)
     ispace = FullIterationSpace.create_with_ghost_layers(ctx, 0, archetype_field)
 
-    condition = platform.materialize_iteration_space(body, ispace)
+    _ = platform.materialize_iteration_space(body, ispace)