code: def test_update_adds_new_statement(self):
      statement = Statement(text="New statement")
      self.adapter.update(statement)
  
      results = list(self.adapter.filter(text="New statement"))
  
      self.assertEqual(len(results), 1)
      self.assertEqual(results[0].text, statement.text)
  
imports: from django.test import TestCase
  from chatterbot.storage import DjangoStorageAdapter
  from chatterbot.conversation import Statement
  from chatterbot.ext.django_chatterbot.models import Statement
label_desc: Use image node_id 5 for calling the DjangoStorageAdapterTests obj's underlying member method code with example usage: obj.test_update_adds_new_statement() without return types