old_contents: VARNISH_SERVERS = ['http://127.0.0.1:8080']
  ENABLE_VARNISH = True
  ENABLE_ESI = False
  
  REST_FRAMEWORK = {
      'PAGE_SIZE': 10,
      # Order is important here because of a bug in rest_framework_swagger. For now,
      # rest_framework.renderers.JSONRenderer needs to be first, at least until
      # https://github.com/marcgibbons/django-rest-swagger/issues/271 is resolved.
      'DEFAULT_RENDERER_CLASSES': (
          'api.base.renderers.JSONAPIRenderer',
          'api.base.renderers.JSONRendererWithESISupport',
          'api.base.renderers.BrowsableAPIRendererNoForms',
      ),
      'DEFAULT_PARSER_CLASSES': (
          'api.base.parsers.JSONAPIParser',
          'api.base.parsers.JSONAPIParserForRegularJSON',
          'rest_framework.parsers.FormParser',
          'rest_framework.parsers.MultiPartParser'
      ),
      'EXCEPTION_HANDLER': 'api.base.exceptions.json_api_exception_handler',
      'DEFAULT_CONTENT_NEGOTIATION_CLASS': 'api.base.content_negotiation.JSONAPIContentNegotiation',
      'DEFAULT_VERSIONING_CLASS': 'api.base.versioning.BaseVersioning',
      'DEFAULT_VERSION': '2.0',
      # The versions below are specifically for testing purposes and do not reflect the actual versioning of the API.
      # If changes are made to this list, or to DEFAULT_VERSION above, please reflect those changes in
      # api_tests/base/test_versioning.py so that local tests will pass.
      'ALLOWED_VERSIONS': (
          '2.0',
          '2.0.1',
          '2.1',
          '2.2',
          '2.3',
          '3.0',
          '3.0.1',
      ),
      'DEFAULT_FILTER_BACKENDS': ('api.base.filters.ODMOrderingFilter',),
      'DEFAULT_PAGINATION_CLASS': 'api.base.pagination.JSONAPIPagination',
      'ORDERING_PARAM': 'sort',
      'DEFAULT_AUTHENTICATION_CLASSES': (
          # Custom auth classes
          'api.base.authentication.drf.OSFBasicAuthentication',
          'api.base.authentication.drf.OSFSessionAuthentication',
          'api.base.authentication.drf.OSFCASAuthentication'
      ),
      'DEFAULT_THROTTLE_CLASSES': [],
      'DEFAULT_THROTTLE_RATES': {
          'user': '1000000/second',
          'non-cookie-auth': '1000000/second',
          'add-contributor': '1000000/second',
          'create-guid': '1000000/second',
          'root-anon-throttle': '1000000/second',
          'test-user': '2/hour',
          'test-anon': '1/hour',
      }
  }
  
new_contents: VARNISH_SERVERS = ['http://127.0.0.1:8080']
  ENABLE_VARNISH = True
  ENABLE_ESI = False
  
  REST_FRAMEWORK = {
      'PAGE_SIZE': 10,
      # Order is important here because of a bug in rest_framework_swagger. For now,
      # rest_framework.renderers.JSONRenderer needs to be first, at least until
      # https://github.com/marcgibbons/django-rest-swagger/issues/271 is resolved.
      'DEFAULT_RENDERER_CLASSES': (
          'api.base.renderers.JSONAPIRenderer',
          'api.base.renderers.JSONRendererWithESISupport',
          'api.base.renderers.BrowsableAPIRendererNoForms',
      ),
      'DEFAULT_PARSER_CLASSES': (
          'api.base.parsers.JSONAPIParser',
          'api.base.parsers.JSONAPIParserForRegularJSON',
          'rest_framework.parsers.FormParser',
          'rest_framework.parsers.MultiPartParser'
      ),
      'EXCEPTION_HANDLER': 'api.base.exceptions.json_api_exception_handler',
      'DEFAULT_CONTENT_NEGOTIATION_CLASS': 'api.base.content_negotiation.JSONAPIContentNegotiation',
      'DEFAULT_VERSIONING_CLASS': 'api.base.versioning.BaseVersioning',
      'DEFAULT_VERSION': '2.0',
      # The versions below are specifically for testing purposes and do not reflect the actual versioning of the API.
      # If changes are made to this list, or to DEFAULT_VERSION above, please reflect those changes in
      # api_tests/base/test_versioning.py so that local tests will pass.
      'ALLOWED_VERSIONS': (
          '2.0',
          '2.0.1',
          '2.1',
          '2.2',
          '2.3',
          '3.0',
          '3.0.1',
      ),
      'DEFAULT_FILTER_BACKENDS': ('api.base.filters.ODMOrderingFilter',),
      'DEFAULT_PAGINATION_CLASS': 'api.base.pagination.JSONAPIPagination',
      'ORDERING_PARAM': 'sort',
      'DEFAULT_AUTHENTICATION_CLASSES': (
          # Custom auth classes
          'api.base.authentication.drf.OSFBasicAuthentication',
          'api.base.authentication.drf.OSFSessionAuthentication',
          'api.base.authentication.drf.OSFCASAuthentication'
      ),
      'DEFAULT_THROTTLE_CLASSES': (),
      'DEFAULT_THROTTLE_RATES': {
          'user': '1000000/second',
          'non-cookie-auth': '1000000/second',
          'add-contributor': '1000000/second',
          'create-guid': '1000000/second',
          'root-anon-throttle': '1000000/second',
          'test-user': '2/hour',
          'test-anon': '1/hour',
      }
  }
  
subject: use tuple for DEFAULT_THROTTLE_CLASSES travis