code: def test_padding_functions(self):
      indexer = DepLabelIndexer()
      assert indexer.get_padding_token() == 0
      assert indexer.get_padding_lengths(0) == {}
  
file_path: magnitude/pymagnitude/third_party/allennlp/tests/data/token_indexers/dep_label_indexer_test.py
imports: from __future__ import absolute_import
  from collections import defaultdict
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.data import Token, Vocabulary
  from allennlp.data.token_indexers import DepLabelIndexer
  from allennlp.data.tokenizers.word_splitter import SpacyWordSplitter
label_desc: Use image node_id 4 for calling the TestDepLabelIndexer obj's underlying member method code with example usage: obj.test_padding_functions() without return types