fix few stuff

Author: adhami3310

reflex/components/component.py

@@ -1516,7 +1516,7 @@ def _iter_parent_classes_with_method(cls, method: str) -> Sequence[type[Componen
         Returns:
             A sequence of parent classes that define the method (differently than the base).
         """
-        current_class_method = getattr(cls, method, None)
+        current_class_method = getattr(Component, method, None)
         seen_methods = (
             {current_class_method} if current_class_method is not None else set()
         )

reflex/istate/data.py

@@ -85,7 +85,7 @@ def from_router_data(cls, router_data: dict) -> "HeaderData":
 
 @serializer(to=dict)
 def _serialize_header_data(obj: HeaderData) -> dict:
-    return dataclasses.asdict(obj)
+    return {k.name: getattr(obj, k.name) for k in dataclasses.fields(obj)}
 
 
 @serializer(to=dict)

reflex/utils/types.py

@@ -856,6 +856,9 @@ def is_valid_var_type(type_: type) -> bool:
 
     if is_union(type_):
         return all(is_valid_var_type(arg) for arg in get_args(type_))
+
+    type_ = origin if (origin := get_origin(type_)) is not None else type_
+
     return (
         issubclass(type_, StateVarTypes)
         or serializers.has_serializer(type_)