code: def create_kernel_no_ard(self, **kwargs):
      return RFFKernel(num_samples=5, **kwargs)
  
imports: import unittest
  from unittest.mock import MagicMock, patch
  import linear_operator
  import torch
  import gpytorch
  from gpytorch.kernels import RFFKernel
  from gpytorch.test.base_kernel_test_case import BaseKernelTestCase
label_desc: Use image node_id 1 for calling the TestRFFKernel obj's underlying member method code with example usage: obj.create_kernel_no_ard() and returns: RFFKernel