✨ Allow hiding from OpenAPI (and Swagger UI) Query, Cookie, Header, and Path parameters (#3144)

Co-authored-by: Sebastián Ramírez <tiangolo@gmail.com>

docs_src/query_params_str_validations/tutorial014.py

@@ -0,0 +1,15 @@
+from typing import Optional
+
+from fastapi import FastAPI, Query
+
+app = FastAPI()
+
+
+@app.get("/items/")
+async def read_items(
+    hidden_query: Optional[str] = Query(None, include_in_schema=False)
+):
+    if hidden_query:
+        return {"hidden_query": hidden_query}
+    else:
+        return {"hidden_query": "Not found"}