old_contents: from unittest import TestCase
  from unittest.mock import MagicMock, patch
  
  
  class SchedulerTests(TestCase):
      def setUp(self):
          modules = {
              'anki': MagicMock(),
              'anki.hooks': MagicMock(),
              'anki.notes': MagicMock(),
              'anki.utils': MagicMock(),
              'aqt': MagicMock(),
              'aqt.addcards': MagicMock(),
              'aqt.browser': MagicMock(),
              'aqt.editcurrent': MagicMock(),
              'aqt.reviewer': MagicMock(),
              'aqt.tagedit': MagicMock(),
              'aqt.utils': MagicMock(),
          }
          self.patcher = patch.dict('sys.modules', modules)
          self.patcher.start()
  
      def tearDown(self):
          self.patcher.stop()
  
      def test_scheduler(self):
          from ir.schedule import Scheduler
          Scheduler()
  
new_contents: from unittest import TestCase
  from unittest.mock import MagicMock, patch
  
  
  class SchedulerTests(TestCase):
      def setUp(self):
          modules = {
              'PyQt5': MagicMock(),
              'PyQt5.QtCore': MagicMock(),
              'PyQt5.QtWidgets': MagicMock(),
              'anki': MagicMock(),
              'anki.hooks': MagicMock(),
              'anki.notes': MagicMock(),
              'anki.utils': MagicMock(),
              'aqt': MagicMock(),
              'aqt.addcards': MagicMock(),
              'aqt.browser': MagicMock(),
              'aqt.editcurrent': MagicMock(),
              'aqt.reviewer': MagicMock(),
              'aqt.tagedit': MagicMock(),
              'aqt.utils': MagicMock(),
              'ir.main': MagicMock(),
          }
          self.patcher = patch.dict('sys.modules', modules)
          self.patcher.start()
  
      def tearDown(self):
          self.patcher.stop()
  
      def test_scheduler(self):
          from ir.schedule import Scheduler
          Scheduler()
  
subject: Add additional module mocks