Sync fastapi docs from 50fa3f7c on 2026-01-11

docs_src/header_params/tutorial001_an.py

@@ -1,11 +0,0 @@
-from typing import Union
-
-from fastapi import FastAPI, Header
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-@app.get("/items/")
-async def read_items(user_agent: Annotated[Union[str, None], Header()] = None):
-    return {"User-Agent": user_agent}

docs_src/header_params/tutorial002_an.py

@@ -1,15 +0,0 @@
-from typing import Union
-
-from fastapi import FastAPI, Header
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-@app.get("/items/")
-async def read_items(
-    strange_header: Annotated[
-        Union[str, None], Header(convert_underscores=False)
-    ] = None,
-):
-    return {"strange_header": strange_header}

docs_src/header_params/tutorial003.py

@@ -1,10 +0,0 @@
-from typing import List, Union
-
-from fastapi import FastAPI, Header
-
-app = FastAPI()
-
-
-@app.get("/items/")
-async def read_items(x_token: Union[List[str], None] = Header(default=None)):
-    return {"X-Token values": x_token}

docs_src/header_params/tutorial003_an.py

@@ -1,11 +0,0 @@
-from typing import List, Union
-
-from fastapi import FastAPI, Header
-from typing_extensions import Annotated
-
-app = FastAPI()
-
-
-@app.get("/items/")
-async def read_items(x_token: Annotated[Union[List[str], None], Header()] = None):
-    return {"X-Token values": x_token}

docs_src/header_params/tutorial003_an_py39.py

@@ -1,4 +1,4 @@
-from typing import Annotated, List, Union
+from typing import Annotated, Union
 
 from fastapi import FastAPI, Header
 
@@ -6,5 +6,5 @@ app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(x_token: Annotated[Union[List[str], None], Header()] = None):
+async def read_items(x_token: Annotated[Union[list[str], None], Header()] = None):
     return {"X-Token values": x_token}