code: def setup_method(self):
      super().setup_method()
      self.logits = torch.Tensor(
          [
              [
                  [0, 0, 0.5, 0.5, 0.2],
                  [0, 0, 0.3, 0.3, 0.1],
                  [0, 0, 0.9, 10, 1],
              ],
              [
                  [0, 0, 0.2, 0.5, 0.2],
                  [0, 0, 3, 0.3, 0.1],
                  [0, 0, 0.9, 1, 1],
              ],
          ]
      )
      self.tags = torch.LongTensor([[2, 3, 4], [3, 2, 2]])
  
      self.transitions = torch.Tensor(
          [
              [0.1, 0.2, 0.3, 0.4, 0.5],
              [0.8, 0.3, 0.1, 0.7, 0.9],
              [-0.3, 2.1, -5.6, 3.4, 4.0],
              [0.2, 0.4, 0.6, -0.3, -0.4],
              [1.0, 1.0, 1.0, 1.0, 1.0],
          ]
      )
  
      self.transitions_from_start = torch.Tensor(
          [0.1, 0.2, 0.3, 0.4, 0.6]
      )
      self.transitions_to_end = torch.Tensor(
          [-0.1, -0.2, 0.3, -0.4, -0.4]
      )
  
      # Use the CRF Module with fixed transitions to compute the log_likelihood
      self.crf = ConditionalRandomField(5)
      self.crf.transitions = torch.nn.Parameter(self.transitions)
      self.crf.start_transitions = torch.nn.Parameter(
          self.transitions_from_start
      )
      self.crf.end_transitions = torch.nn.Parameter(
          self.transitions_to_end
      )
  
imports: import itertools
  import math
  from pytest import approx, raises
  import torch
  from numpy.testing import assert_allclose
  from allennlp.modules import ConditionalRandomField
  from allennlp.modules.conditional_random_field import ConditionalRandomFieldWeightEmission, ConditionalRandomFieldWeightTrans, ConditionalRandomFieldWeightLannoy
  from allennlp.modules.conditional_random_field.conditional_random_field import allowed_transitions
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.testing import AllenNlpTestCase
label_desc: Use image node_id 1 for calling the TestConditionalRandomField obj's underlying member method code with example usage: obj.setup_method() without return types