--- /dev/null
+from typing import Any
+
+def is_known_charset(charset): ...
+
+class JSONRequestMixin:
+ def json(self): ...
+
+class ProtobufRequestMixin:
+ protobuf_check_initialization: Any
+ def parse_protobuf(self, proto_type): ...
+
+class RoutingArgsRequestMixin:
+ routing_args: Any
+ routing_vars: Any
+
+class ReverseSlashBehaviorRequestMixin:
+ def path(self): ...
+ def script_root(self): ...
+
+class DynamicCharsetRequestMixin:
+ default_charset: Any
+ def unknown_charset(self, charset): ...
+ def charset(self): ...
+
+class DynamicCharsetResponseMixin:
+ default_charset: Any
+ charset: Any