code: def test_active_dims_range(self):
      # this makes no sense for this kernel since d=1
      pass
  
imports: import torch
  from botorch.models.kernels.downsampling import DownsamplingKernel
  from botorch.utils.testing import BotorchTestCase
  from gpytorch.priors.torch_priors import GammaPrior, NormalPrior
  from gpytorch.test.base_kernel_test_case import BaseKernelTestCase
label_desc: Use image node_id 6 for calling the TestDownsamplingKernel obj's underlying member method code with example usage: obj.test_active_dims_range() without return types