code: def test_acceptance_prob(self):
      acceptance_probability = self.hmc_sampler._acceptance_prob(
          np.array([1, 2, 3]),
          np.array([2, 3, 4]),
          np.array([1, -1, 1]),
          np.array([0, 0, 0]),
      )
      np.testing.assert_almost_equal(acceptance_probability, 0.0347363)
  
imports: import sys
  import unittest
  import numpy
  from pgmpy.factors.distributions import GaussianDistribution
  from pgmpy.sampling import HamiltonianMC, HamiltonianMCDA, GradLogPDFGaussian, NoUTurnSampler, NoUTurnSamplerDA
label_desc: Use image node_id 3 for calling the TestHMCInference obj's underlying member method code with example usage: obj.test_acceptance_prob() without return types