diff --git a/docs_src/body_fields/tutorial001_an_py310.py b/docs_src/body_fields/tutorial001_an_py310.py
index c9d99e1c2b..e0b8dc1b7c 100644
--- a/docs_src/body_fields/tutorial001_an_py310.py
+++ b/docs_src/body_fields/tutorial001_an_py310.py
@@ -3,6 +3,7 @@ from typing import Annotated
 from fastapi import Body, FastAPI
 from pydantic import BaseModel, Field
 
+
 app = FastAPI()