diff --git a/axes/helpers.py b/axes/helpers.py
index 8ce68af..b970229 100644
--- a/axes/helpers.py
+++ b/axes/helpers.py
@@ -100,6 +100,7 @@ def get_cool_off_iso8601(delta: timedelta) -> str:
         return f"P{days_str}T{time_str}"
     return f"P{days_str}"
 
+
 def get_attempt_expiration(request: Optional[HttpRequest] = None) -> datetime:
     """
     Get threshold for fetching access attempts from the database.
@@ -116,6 +117,7 @@ def get_attempt_expiration(request: Optional[HttpRequest] = None) -> datetime:
         return datetime.now() + cool_off
     return attempt_time + cool_off
 
+
 def get_credentials(username: Optional[str] = None, **kwargs) -> dict:
     """
     Calculate credentials for Axes to use internally from given username and kwargs.
@@ -521,7 +523,9 @@ def get_lockout_response(
         return json_response
 
     if settings.AXES_LOCKOUT_TEMPLATE:
-        response = render(request, settings.AXES_LOCKOUT_TEMPLATE, context, status=status)
+        response = render(
+            request, settings.AXES_LOCKOUT_TEMPLATE, context, status=status
+        )
         _set_retry_after_header(response, request)
         return response