Sync fastapi docs from 11614be9 on 2026-03-11

docs_src/custom_response/tutorial010_py310.py

@@ -0,0 +1,9 @@
+from fastapi import FastAPI
+from fastapi.responses import HTMLResponse
+
+app = FastAPI(default_response_class=HTMLResponse)
+
+
+@app.get("/items/")
+async def read_items():
+    return "<h1>Items</h1><p>This is a list of items.</p>"