code: def test_batch_log_prob_shape(self):
      assert dist.Delta(self.vs).log_prob(
          self.batch_test_data_3
      ).size() == (4, 1)
      assert dist.Delta(self.v).log_prob(
          self.batch_test_data_3
      ).size() == (4, 1)
  
file_path: pyro/tests/distributions/test_delta.py
imports: from unittest import TestCase
  import numpy
  import pytest
  import torch
  import pyro.distributions
  from tests.common import assert_equal
label_desc: Use image node_id 4 for calling the TestDelta obj's underlying member method code with example usage: obj.test_batch_log_prob_shape() without return types