From fd1e651357cbbd12f01ae4b34519be6211f19493 Mon Sep 17 00:00:00 2001
From: matiuszka <nowak.mateusz@hotmail.com>
Date: Mon, 9 Jan 2023 11:47:46 +0100
Subject: [PATCH] fixup! Fix `NoneType` return type for 204 endpoints

---
 fastapi/dependencies/utils.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index a4a8c96df1..3d3faec894 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -17,7 +17,6 @@ from typing import (
     Union,
     cast,
 )
-import types
 
 import anyio
 from fastapi import params
@@ -279,7 +278,8 @@ def get_typed_return_annotation(call: Callable[..., Any]) -> Any:
     globalns = getattr(call, "__globals__", {})
     typed_annotation = get_typed_annotation(annotation, globalns)
 
-    if typed_annotation is types.NoneType:
+    NoneType = type(None)
+    if issubclass(typed_annotation, NoneType):
         return None
 
     return typed_annotation