old_contents: """Simple client to access our API with Slumber credentials."""
  
  import logging
  
  import requests
  from django.conf import settings
  from rest_framework.renderers import JSONRenderer
  from slumber import API, serialize
  from urllib3.util.retry import Retry
  
  from .adapters import TimeoutHostHeaderSSLAdapter, TimeoutHTTPAdapter
  
  log = logging.getLogger(__name__)
  
  
  class DrfJsonSerializer(serialize.JsonSerializer):
  
      """Additional serialization help from the DRF renderer."""
  
      key = 'json-drf'
  
      def dumps(self, data):
          """Used to be able to render datetime objects."""
          return JSONRenderer().render(data)
  
  
  def setup_api():
      session = requests.Session()
      session.verify = False
      if settings.SLUMBER_API_HOST.startswith('https'):
          # Only use the HostHeaderSSLAdapter for HTTPS connections
          adapter_class = TimeoutHostHeaderSSLAdapter
      else:
          adapter_class = TimeoutHTTPAdapter
  
      # Define a retry mechanism trying to attempt to not fail in the first error.
      # Builders hit this issue frequently because the webs are high loaded
      # (even on non-idempotent methods, sadly).
      retry = Retry(
          total=3,
          read=3,
          connect=3,
          status=3,
          backoff_factor=0.5,  # 0.5, 1, 2 seconds
          method_whitelist=('GET', 'PUT', 'PATCH', 'POST'),
          status_forcelist=(408, 413, 429, 500, 502, 503, 504),
      )
  
      session.mount(
          settings.SLUMBER_API_HOST,
          adapter_class(max_retries=retry),
      )
      session.headers.update({'Host': settings.PRODUCTION_DOMAIN})
      api_config = {
          'base_url': '%s/api/v2/' % settings.SLUMBER_API_HOST,
          'serializer': serialize.Serializer(
              default='json-drf',
              serializers=[
                  serialize.JsonSerializer(),
                  DrfJsonSerializer(),
              ],
          ),
          'session': session,
      }
      if settings.SLUMBER_USERNAME and settings.SLUMBER_PASSWORD:
          log.debug(
              'Using slumber v2 with user %s, pointed at %s',
              settings.SLUMBER_USERNAME,
              settings.SLUMBER_API_HOST,
          )
          session.auth = (settings.SLUMBER_USERNAME, settings.SLUMBER_PASSWORD)
      else:
          log.warning('SLUMBER_USERNAME/PASSWORD settings are not set')
      return API(**api_config)
  
  
  api = setup_api()
  
new_contents: """Simple client to access our API with Slumber credentials."""
  
  import logging
  
  import requests
  from django.conf import settings
  from rest_framework.renderers import JSONRenderer
  from slumber import API, serialize
  from urllib3.util.retry import Retry
  
  from .adapters import TimeoutHostHeaderSSLAdapter, TimeoutHTTPAdapter
  
  log = logging.getLogger(__name__)
  
  
  class DrfJsonSerializer(serialize.JsonSerializer):
  
      """Additional serialization help from the DRF renderer."""
  
      key = 'json-drf'
  
      def dumps(self, data):
          """Used to be able to render datetime objects."""
          return JSONRenderer().render(data)
  
  
  def setup_api():
      session = requests.Session()
      if settings.SLUMBER_API_HOST.startswith('https'):
          # Only use the HostHeaderSSLAdapter for HTTPS connections
          adapter_class = TimeoutHostHeaderSSLAdapter
      else:
          adapter_class = TimeoutHTTPAdapter
  
      # Define a retry mechanism trying to attempt to not fail in the first error.
      # Builders hit this issue frequently because the webs are high loaded
      # (even on non-idempotent methods, sadly).
      retry = Retry(
          total=3,
          read=3,
          connect=3,
          status=3,
          backoff_factor=0.5,  # 0.5, 1, 2 seconds
          method_whitelist=('GET', 'PUT', 'PATCH', 'POST'),
          status_forcelist=(408, 413, 429, 500, 502, 503, 504),
      )
  
      session.mount(
          settings.SLUMBER_API_HOST,
          adapter_class(max_retries=retry),
      )
      session.headers.update({'Host': settings.PRODUCTION_DOMAIN})
      api_config = {
          'base_url': '%s/api/v2/' % settings.SLUMBER_API_HOST,
          'serializer': serialize.Serializer(
              default='json-drf',
              serializers=[
                  serialize.JsonSerializer(),
                  DrfJsonSerializer(),
              ],
          ),
          'session': session,
      }
      if settings.SLUMBER_USERNAME and settings.SLUMBER_PASSWORD:
          log.debug(
              'Using slumber v2 with user %s, pointed at %s',
              settings.SLUMBER_USERNAME,
              settings.SLUMBER_API_HOST,
          )
          session.auth = (settings.SLUMBER_USERNAME, settings.SLUMBER_PASSWORD)
      else:
          log.warning('SLUMBER_USERNAME/PASSWORD settings are not set')
      return API(**api_config)
  
  
  api = setup_api()
  
subject: Remove stray line from previous commit :/