style: clean up unused parameters and imports in examples

examples/06_dependency_injection.py

@@ -10,8 +10,8 @@ from fastapi.responses import JSONResponse
 
 from fastapi_traffic import (
     MemoryBackend,
-    RateLimitExceeded,
     RateLimiter,
+    RateLimitExceeded,
 )
 from fastapi_traffic.core.decorator import RateLimitDependency
 from fastapi_traffic.core.limiter import set_limiter
@@ -21,7 +21,7 @@ limiter = RateLimiter(backend)
 
 
 @asynccontextmanager
-async def lifespan(app: FastAPI):
+async def lifespan(_: FastAPI):
     """Lifespan context manager for startup/shutdown."""
     await limiter.initialize()
     set_limiter(limiter)
@@ -33,7 +33,7 @@ app = FastAPI(title="Dependency Injection Example", lifespan=lifespan)
 
 
 @app.exception_handler(RateLimitExceeded)
-async def rate_limit_handler(request: Request, exc: RateLimitExceeded) -> JSONResponse:
+async def rate_limit_handler(_: Request, exc: RateLimitExceeded) -> JSONResponse:
     return JSONResponse(
         status_code=429,
         content={"error": "rate_limit_exceeded", "retry_after": exc.retry_after},
@@ -46,7 +46,7 @@ basic_rate_limit = RateLimitDependency(limit=10, window_size=60)
 
 @app.get("/basic")
 async def basic_endpoint(
-    request: Request,
+    _: Request,
     rate_info: Any = Depends(basic_rate_limit),
 ) -> dict[str, Any]:
     """Access rate limit info in your endpoint logic."""
@@ -131,7 +131,7 @@ api_rate_limit = RateLimitDependency(
 
 @app.get("/api/resource")
 async def api_resource(
-    request: Request,
+    _: Request,
     rate_info: Any = Depends(api_rate_limit),
 ) -> dict[str, Any]:
     """API endpoint with per-API-key rate limiting."""
@@ -156,7 +156,7 @@ per_hour_limit = RateLimitDependency(
 
 
 async def combined_rate_limit(
-    request: Request,
+    _: Request,
     minute_info: Any = Depends(per_minute_limit),
     hour_info: Any = Depends(per_hour_limit),
 ) -> dict[str, Any]:
@@ -175,7 +175,7 @@ async def combined_rate_limit(
 
 @app.get("/combined")
 async def combined_endpoint(
-    request: Request,
+    _: Request,
     rate_info: dict[str, Any] = Depends(combined_rate_limit),
 ) -> dict[str, Any]:
     """Endpoint with multiple rate limit tiers."""
@@ -209,9 +209,13 @@ async def internal_exempt_endpoint(
     return {
         "message": "Success",
         "is_internal": is_internal,
-        "rate_limit": None if is_internal else {
-            "remaining": rate_info.remaining,
-        },
+        "rate_limit": (
+            None
+            if is_internal
+            else {
+                "remaining": rate_info.remaining,
+            }
+        ),
     }