Some more typing for Request/Response classes

falcon/request.py

@@ -14,8 +14,12 @@
 
 from datetime import datetime
 from io import BytesIO
+import sys
 from uuid import UUID
 
+if sys.version_info >= (3, 11):
+    from wsgiref.types import InputStream
+
 from falcon import errors
 from falcon import request_helpers as helpers
 from falcon import util
@@ -454,6 +458,9 @@
     # Child classes may override this
     context_type = structures.Context
 
+    if sys.version_info >= (3, 11):
+        stream: InputStream
+
     _wsgi_input_type_known = False
 
     def __init__(self, env, options=None):

falcon/response.py

@@ -174,6 +174,9 @@ class Response:
     # Child classes may override this
     context_type = structures.Context
 
+    text: Optional[str]
+    _data: Optional[bytes]
+
     def __init__(self, options=None):
         self.status = '200 OK'
         self._headers = {}
@@ -227,7 +230,7 @@ def data(self):
         return self._data
 
     @data.setter
-    def data(self, value):
+    def data(self, value: bytes):
         self._data = value
 
     @property