fixing DQ issues

middleware/rate_limiter.py

@@ -1,4 +1,12 @@
 # middleware/rate_limiter.py
+"""Summary description ....
+
+This module provides classes and functions for:
+- ....
+- ....
+- ....
+"""
+
 import logging
 from collections import defaultdict, deque
 from datetime import datetime, timedelta
@@ -8,7 +16,7 @@ logger = logging.getLogger(__name__)
 
 
 class RateLimiter:
-    """In-memory rate limiter using sliding window"""
+    """In-memory rate limiter using sliding window."""
 
     def __init__(self):
         """Class constructor."""
@@ -21,7 +29,8 @@ class RateLimiter:
         self, client_id: str, max_requests: int, window_seconds: int
     ) -> bool:
         """
-        Check if client is allowed to make a request
+        Check if client is allowed to make a request.
+
         Uses sliding window algorithm
         """
         now = datetime.utcnow()
@@ -50,7 +59,7 @@ class RateLimiter:
         return False
 
     def _cleanup_old_entries(self):
-        """Clean up old entries to prevent memory leaks"""
+        """Clean up old entries to prevent memory leaks."""
         cutoff_time = datetime.utcnow() - timedelta(hours=24)
 
         clients_to_remove = []
@@ -72,7 +81,7 @@ class RateLimiter:
         )
 
     def get_client_stats(self, client_id: str) -> Dict[str, int]:
-        """Get statistics for a specific client"""
+        """Get statistics for a specific client."""
         client_requests = self.clients.get(client_id, deque())
 
         now = datetime.utcnow()