code: def test_load_data(self):
      train_x, train_y = ChineseDailyNerCorpus.load_data()
      assert len(train_x) == len(train_y)
      assert len(train_x) > 0
      assert train_x[:5] != train_y[:5]
  
      test_x, test_y = ChineseDailyNerCorpus.load_data("test")
      assert len(test_x) == len(test_y)
      assert len(test_x) > 0
  
      test_x, test_y = ChineseDailyNerCorpus.load_data("valid")
      assert len(test_x) == len(test_y)
      assert len(test_x) > 0
  
file_path: Kashgari/tests/test_corpus.py
imports: import unittest
  from kashgari.corpus import ChineseDailyNerCorpus
  from kashgari.corpus import SMP2018ECDTCorpus
label_desc: Use image node_id 1 for calling the TestChineseDailyNerCorpus obj's underlying member method code with example usage: obj.test_load_data() without return types