code: def test_get_regularization_penalty(self):
      class FakeModel(Model):
          def forward(self, **kwargs):
              return {}
  
      class FakeRegularizerApplicator(RegularizerApplicator):
          def __call__(self, module):
              return 2.0
  
      with pytest.raises(RuntimeError):
          regularizer = FakeRegularizerApplicator()
          model = FakeModel(None, regularizer)
          model.get_regularization_penalty()
  
file_path: allennlp/tests/models/model_test.py
imports: import torch
  import pytest
  from allennlp.common.testing.test_case import AllenNlpTestCase
  from allennlp.models import load_archive, Model
  from allennlp.nn.regularizers import RegularizerApplicator
label_desc: Use image node_id 2 for calling the TestModel obj's underlying member method code with example usage: obj.test_get_regularization_penalty() and returns: dict, int