Typing fixes

Author: wch

shinywidgets/_serialization.py

@@ -34,7 +34,9 @@ def json_default(obj: object) -> object:
         return b2a_base64(obj).decode("ascii")
 
     if isinstance(obj, Iterable):
-        return list(obj)
+        return list(
+            obj  # pyright: ignore[reportUnknownVariableType, reportUnknownArgumentType]
+        )
 
     if isinstance(obj, numbers.Integral):
         return int(obj)

shinywidgets/_shinywidgets.py

@@ -159,7 +159,7 @@ def _restore_state():
 IPyWidgetRenderFuncAsync = Callable[[], Awaitable[Widget]]
 
 
-class IPyWidget(RenderFunction):
+class IPyWidget(RenderFunction[Widget, object]):
     def __init__(self, fn: IPyWidgetRenderFunc) -> None:
         super().__init__(fn)
         self._fn: IPyWidgetRenderFuncAsync = wrap_async(fn)
@@ -175,7 +175,7 @@ async def run(self) -> object:
         return {"model_id": widget.model_id}  # type: ignore
 
 
-class IPyWidgetAsync(IPyWidget, RenderFunctionAsync):
+class IPyWidgetAsync(IPyWidget, RenderFunctionAsync[Widget, object]):
     def __init__(self, fn: IPyWidgetRenderFuncAsync) -> None:
         if not inspect.iscoroutinefunction(fn):
             raise TypeError("IPyWidgetAsync requires an async function")