code: def test_kernel_pickle_unpickle(self):
      # This kernel uses priors by default, which cause this test to fail
      pass
  
imports: import itertools
  import torch
  from botorch.exceptions import UnsupportedError
  from botorch.models.kernels.linear_truncated_fidelity import LinearTruncatedFidelityKernel
  from botorch.utils.testing import BotorchTestCase
  from gpytorch.kernels.matern_kernel import MaternKernel
  from gpytorch.kernels.rbf_kernel import RBFKernel
  from gpytorch.priors.torch_priors import GammaPrior, NormalPrior
  from gpytorch.test.base_kernel_test_case import BaseKernelTestCase
label_desc: Use image node_id 16 for calling the TestLinearTruncatedFidelityKernel obj's underlying member method code with example usage: obj.test_kernel_pickle_unpickle() without return types