old_contents: 
  import unittest
  import cbs
  
  
  class MySettings(cbs.GlobalSettings):
      PROJECT_NAME = 'tests'
  
      @property
      def INSTALLED_APPS(self):
          return super(MySettings, self).INSTALLED_APPS + ('test',)
  
  
  class GlobalSettingsTest(unittest.TestCase):
  
      def test_precedence(self):
          g = {}
          cbs.apply(MySettings, g)
  
          self.assertTrue('INSTALLED_APPS']), 1)
  
new_contents: 
  import unittest
  import cbs
  
  
  class MySettings(cbs.GlobalSettings):
      PROJECT_NAME = 'tests'
  
      @property
      def INSTALLED_APPS(self):
          return super(MySettings, self).INSTALLED_APPS + ('test',)
  
  
  class GlobalSettingsTest(unittest.TestCase):
  
      def test_precedence(self):
          g = {}
          cbs.apply(MySettings, g)
  
          self.assertTrue(len(g['INSTALLED_APPS']), 1)
  
subject: Fix typo