code: def test_scorer_from_pretrained(self):
      model = RealmScorer.from_pretrained(
          "google/realm-cc-news-pretrained-scorer"
      )
      self.assertIsNotNone(model)
  
imports: import copy
  import unittest
  import numpy
  from transformers import RealmConfig, is_torch_available
  from transformers.testing_utils import require_torch, slow, torch_device
  from ...test_configuration_common import ConfigTester
  from ...test_modeling_common import ModelTesterMixin, floats_tensor, ids_tensor, random_attention_mask
label_desc: Use image node_id 12 for calling the RealmModelTest obj's underlying member method code with example usage: obj.test_scorer_from_pretrained() without return types