code: def create_likelihood_and_labels(self):
      likelihood = gpytorch.likelihoods.GaussianLikelihood()
      labels = torch.randn(N_PTS) + 2
      return likelihood, labels
  
imports: import unittest
  import torch
  import gpytorch
  from gpytorch import settings
  from gpytorch.kernels import GridInterpolationKernel
  from gpytorch.likelihoods import GaussianLikelihood
  from gpytorch.mlls import ExactMarginalLogLikelihood
  from gpytorch.models import ExactGP
  from gpytorch.models.exact_prediction_strategies import InterpolatedPredictionStrategy
  from gpytorch.test.model_test_case import BaseModelTestCase
label_desc: Use image node_id 3 for calling the TestExactGP obj's underlying member method code with example usage: obj.create_likelihood_and_labels() and returns: likelihood,  labels