text: 
  from unittest import TestLoader, TestSuite
  
  
  def load_tests(loader: TestLoader, test_classes, pattern):
      suite = TestSuite()
      _test_classes = []
  
      from .tests import get_frappe_notification_doctype_tests
      _test_classes.extend(get_frappe_notification_doctype_tests())
  
      for test_class in _test_classes:
          t = loader.loadTestsFromTestCase(test_class)
          suite.addTests(t)
  
      return suite
  