code: def test_nonbatch(self):
      pass
  
imports: import unittest
  import torch
  from linear_operator.operators import KroneckerProductLinearOperator, RootLinearOperator, ToeplitzLinearOperator
  from gpytorch.distributions import MultitaskMultivariateNormal
  from gpytorch.likelihoods import MultitaskGaussianLikelihood
  from gpytorch.test.base_likelihood_test_case import BaseLikelihoodTestCase
label_desc: Use image node_id 2 for calling the TestMultitaskGaussianLikelihoodBatch obj's underlying member method code with example usage: obj.test_nonbatch() without return types