Update `docs_src/path_operation_configuration/tutorial003_*`

docs/en/docs/tutorial/path-operation-configuration.md

@@ -52,7 +52,7 @@ In these cases, it could make sense to store the tags in an `Enum`.
 
 You can add a `summary` and `description`:
 
-{* ../../docs_src/path_operation_configuration/tutorial003_py310.py hl[18:19] *}
+{* ../../docs_src/path_operation_configuration/tutorial003_py310.py hl[17:18] *}
 
 ## Description from docstring { #description-from-docstring }
 

docs_src/path_operation_configuration/tutorial003_py310.py

@@ -14,9 +14,8 @@ class Item(BaseModel):
 
 @app.post(
     "/items/",
-    response_model=Item,
     summary="Create an item",
     description="Create an item with all the information, name, description, price, tax and a set of unique tags",
 )
-async def create_item(item: Item):
+async def create_item(item: Item) -> Item:
     return item

docs_src/path_operation_configuration/tutorial003_py39.py

@@ -16,9 +16,8 @@ class Item(BaseModel):
 
 @app.post(
     "/items/",
-    response_model=Item,
     summary="Create an item",
     description="Create an item with all the information, name, description, price, tax and a set of unique tags",
 )
-async def create_item(item: Item):
+async def create_item(item: Item) -> Item:
     return item