message: Fixes typo in warning
diff: @@ -98,7 +98,7 @@ def transfomer_decorator(func: Callable):
  ), "x has to have the same shape after transformation as before"
  assert (
  y.shape == y_transformed.shape
  - ), "x has to have the same shape after transformation as before"
  + ), "y has to have the same shape after transformation as before"
  return (x_transformed, y_transformed)
  