code: def test_get(self):
      s = self.split_dict["train"]
      self.assertEqual("train", s.name)
      self.assertEqual(2, s.num_shards)
  
imports: from tensorflow_datasets import testing
  from tensorflow_datasets.core import naming
  from tensorflow_datasets.core import proto
  from tensorflow_datasets.core import splits
  from tensorflow_datasets.core.utils import shard_utils
  import tensorflow_datasets.public_api
label_desc: Use image node_id 2 for calling the SplitDictTest obj's underlying member method code with example usage: obj.test_get() without return types