✨Add support for PEP-593 Annotated for specifying dependencies and parameters (#4871)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

docs_src/annotated/tutorial002.py

@@ -0,0 +1,21 @@
+from typing import Optional
+
+from fastapi import Depends, FastAPI
+from typing_extensions import Annotated
+
+app = FastAPI()
+
+
+class CommonQueryParams:
+    def __init__(self, q: Optional[str] = None, skip: int = 0, limit: int = 100):
+        self.q = q
+        self.skip = skip
+        self.limit = limit
+
+
+CommonQueryParamsDepends = Annotated[CommonQueryParams, Depends()]
+
+
+@app.get("/items/")
+async def read_items(commons: CommonQueryParamsDepends):
+    return commons