code: def create_kernel_ard(self, num_dims, **kwargs):
      return ArcKernel(
          base_kernel=MaternKernel(nu=0.5),
          ard_num_dims=num_dims,
          **kwargs,
      )
  
file_path: gpytorch/test/kernels/test_arc_kernel.py
imports: import unittest
  from gpytorch.kernels import ArcKernel, MaternKernel
  from gpytorch.priors import NormalPrior
  from gpytorch.test.base_kernel_test_case import BaseKernelTestCase
label_desc: Use image node_id 2 for calling the TestArcKernel obj's underlying member method code with example usage: obj.create_kernel_ard(num_dims) and returns: ArcKernel