Fix `custom_request_and_route/tutorial002_an**`

docs/en/docs/how-to/custom-request-and-route.md

@@ -92,11 +92,11 @@ We can also use this same approach to access the request body in an exception ha
 
 All we need to do is handle the request inside a `try`/`except` block:
 
-{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[13,15] *}
+{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[14,16] *}
 
 If an exception occurs, the`Request` instance will still be in scope, so we can read and make use of the request body when handling the error:
 
-{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[16:18] *}
+{* ../../docs_src/custom_request_and_route/tutorial002_an_py310.py hl[17:19] *}
 
 ## Custom `APIRoute` class in a router { #custom-apiroute-class-in-a-router }
 

docs_src/custom_request_and_route/tutorial002_an.py

@@ -3,6 +3,7 @@ from typing import Callable, List
 from fastapi import Body, FastAPI, HTTPException, Request, Response
 from fastapi.exceptions import RequestValidationError
 from fastapi.routing import APIRoute
+from typing_extensions import Annotated
 
 
 class ValidationErrorLoggingRoute(APIRoute):
@@ -25,5 +26,5 @@ app.router.route_class = ValidationErrorLoggingRoute
 
 
 @app.post("/")
-async def sum_numbers(numbers: List[int] = Body()):
+async def sum_numbers(numbers: Annotated[List[int], Body()]):
     return sum(numbers)

docs_src/custom_request_and_route/tutorial002_an_py310.py

@@ -1,4 +1,5 @@
 from collections.abc import Callable
+from typing import Annotated
 
 from fastapi import Body, FastAPI, HTTPException, Request, Response
 from fastapi.exceptions import RequestValidationError
@@ -25,5 +26,5 @@ app.router.route_class = ValidationErrorLoggingRoute
 
 
 @app.post("/")
-async def sum_numbers(numbers: list[int] = Body()):
+async def sum_numbers(numbers: Annotated[list[int], Body()]):
     return sum(numbers)

docs_src/custom_request_and_route/tutorial002_an_py39.py

@@ -1,4 +1,4 @@
-from typing import Callable
+from typing import Annotated, Callable
 
 from fastapi import Body, FastAPI, HTTPException, Request, Response
 from fastapi.exceptions import RequestValidationError
@@ -25,5 +25,5 @@ app.router.route_class = ValidationErrorLoggingRoute
 
 
 @app.post("/")
-async def sum_numbers(numbers: list[int] = Body()):
+async def sum_numbers(numbers: Annotated[list[int], Body()]):
     return sum(numbers)