✨ Add support for Response parameters to set headers, cookies, and status codes (#294)

* ✨ Add support for declaring a Response parameter to set headers and cookies

* ✅ Add source for docs and tests

* 📝 Add docs for setting headers, cookies and status code

* 📝 Add attribution to Hug for inspiring response parameters

tests/test_response_change_status_code.py

@@ -0,0 +1,27 @@
+from fastapi import Depends, FastAPI
+from starlette.responses import Response
+from starlette.testclient import TestClient
+
+app = FastAPI()
+
+
+async def response_status_setter(response: Response):
+    response.status_code = 201
+
+
+async def parent_dep(result=Depends(response_status_setter)):
+    return result
+
+
+@app.get("/", dependencies=[Depends(parent_dep)])
+async def get_main():
+    return {"msg": "Hello World"}
+
+
+client = TestClient(app)
+
+
+def test_dependency_set_status_code():
+    response = client.get("/")
+    assert response.status_code == 201
+    assert response.json() == {"msg": "Hello World"}