old_contents: import unittest
  import os
  import re
  
  
  class BaseTestCase(unittest.TestCase):
  
      def setUp(self):
          os.environ.setdefault("DJANGO_SETTINGS_MODULE", "tests.testapp.testapp.settings")
  
          from django.test.client import Client
          from tests.testapp.testapp.wsgi import application
          import rhetoric
  
  
          DEFAULT_HEADERS = {
              'X-API-VERSION': '1.0'
          }
          self.client = Client(**DEFAULT_HEADERS)
          self.rhetoric = rhetoric
          self.wsgi_app = application
  
new_contents: import unittest
  import os
  
  
  class BaseTestCase(unittest.TestCase):
  
      def setUp(self):
          os.environ.setdefault("DJANGO_SETTINGS_MODULE", "tests.testapp.testapp.settings")
  
          from django.test.client import Client
          from tests.testapp.testapp.wsgi import application
          import rhetoric
  
  
          DEFAULT_HEADERS = {
              'X-API-VERSION': '1.0'
          }
          self.client = Client(**DEFAULT_HEADERS)
          self.rhetoric = rhetoric
          self.wsgi_app = application
  
subject: Remove unused imports