code: def test_MultivariateNormalQMCEngineShapeErrors(self):
      with self.assertRaises(ValueError):
          MultivariateNormalQMCEngine(
              mean=torch.zeros(2), cov=torch.zeros(2, 1)
          )
      with self.assertRaises(ValueError):
          MultivariateNormalQMCEngine(
              mean=torch.zeros(1), cov=torch.eye(2)
          )
  
imports: import itertools
  import math
  import numpy
  import torch
  from botorch.sampling.qmc import MultivariateNormalQMCEngine, NormalQMCEngine
  from botorch.utils.testing import BotorchTestCase
  from scipy.stats import shapiro
label_desc: Use image node_id 1 for calling the MultivariateNormalQMCTests obj's underlying member method code with example usage: obj.test_MultivariateNormalQMCEngineShapeErrors() without return types