Merge pull request #2089 from Textualize/recursive-rich-cast

allow rich cast to return rich cast

Author: willmcgugan

rich/console.py

@@ -265,7 +265,9 @@ def update_dimensions(self, width: int, height: int) -> "ConsoleOptions":
 class RichCast(Protocol):
     """An object that may be 'cast' to a console renderable."""
 
-    def __rich__(self) -> Union["ConsoleRenderable", str]:  # pragma: no cover
+    def __rich__(
+        self,
+    ) -> Union["ConsoleRenderable", "RichCast", str]:  # pragma: no cover
         ...