style: clean up unused parameters and imports in examples

examples/08_tiered_api.py

@@ -13,8 +13,8 @@ from fastapi.responses import JSONResponse
 from fastapi_traffic import (
     Algorithm,
     MemoryBackend,
-    RateLimitExceeded,
     RateLimiter,
+    RateLimitExceeded,
 )
 from fastapi_traffic.core.decorator import RateLimitDependency
 from fastapi_traffic.core.limiter import set_limiter
@@ -24,7 +24,7 @@ limiter = RateLimiter(backend)
 
 
 @asynccontextmanager
-async def lifespan(app: FastAPI):
+async def lifespan(_: FastAPI):
     await limiter.initialize()
     set_limiter(limiter)
     yield
@@ -82,7 +82,14 @@ TIER_CONFIGS: dict[Tier, TierConfig] = {
         requests_per_hour=50000,
         requests_per_day=500000,
         burst_size=200,
-        features=["basic_api", "webhooks", "analytics", "priority_support", "sla", "custom_integrations"],
+        features=[
+            "basic_api",
+            "webhooks",
+            "analytics",
+            "priority_support",
+            "sla",
+            "custom_integrations",
+        ],
     ),
 }
 
@@ -109,7 +116,9 @@ async def rate_limit_handler(request: Request, exc: RateLimitExceeded) -> JSONRe
             "message": exc.message,
             "retry_after": exc.retry_after,
             "tier": tier.value,
-            "upgrade_url": "https://example.com/pricing" if tier != Tier.ENTERPRISE else None,
+            "upgrade_url": (
+                "https://example.com/pricing" if tier != Tier.ENTERPRISE else None
+            ),
         },
         headers=exc.limit_info.to_headers() if exc.limit_info else {},
     )
@@ -171,7 +180,7 @@ async def apply_tier_rate_limit(
 
 @app.get("/api/v1/data")
 async def get_data(
-    request: Request,
+    _: Request,
     limit_info: dict[str, Any] = Depends(apply_tier_rate_limit),
 ) -> dict[str, Any]:
     """Get data with tier-based rate limiting."""
@@ -188,7 +197,7 @@ async def get_data(
 
 @app.get("/api/v1/analytics")
 async def get_analytics(
-    request: Request,
+    _: Request,
     limit_info: dict[str, Any] = Depends(apply_tier_rate_limit),
 ) -> dict[str, Any]:
     """Analytics endpoint - requires Pro tier or higher."""
@@ -228,7 +237,11 @@ async def get_tier_info(
             "burst_size": config.burst_size,
         },
         "features": config.features,
-        "upgrade_options": [t.value for t in Tier if TIER_CONFIGS[t].requests_per_minute > config.requests_per_minute],
+        "upgrade_options": [
+            t.value
+            for t in Tier
+            if TIER_CONFIGS[t].requests_per_minute > config.requests_per_minute
+        ],
     }