✨ Add support for Pydantic models for parameters using Query, Cookie, Header (#12199)

docs_src/cookie_param_models/tutorial002.py

@@ -0,0 +1,19 @@
+from typing import Union
+
+from fastapi import Cookie, FastAPI
+from pydantic import BaseModel
+
+app = FastAPI()
+
+
+class Cookies(BaseModel):
+    model_config = {"extra": "forbid"}
+
+    session_id: str
+    fatebook_tracker: Union[str, None] = None
+    googall_tracker: Union[str, None] = None
+
+
+@app.get("/items/")
+async def read_items(cookies: Cookies = Cookie()):
+    return cookies