Accept AnyContainer instead of Container in print_container.

This way, we can also pass widgets to `print_container`.

Author: jonathanslenders

prompt_toolkit/shortcuts/utils.py

@@ -24,7 +24,7 @@
 )
 
 if TYPE_CHECKING:
-    from prompt_toolkit.layout.containers import Container
+    from prompt_toolkit.layout.containers import AnyContainer
 
 __all__ = [
     "print_formatted_text",
@@ -141,7 +141,7 @@ def to_text(val: Any) -> StyleAndTextTuples:
 
 
 def print_container(
-    container: "Container",
+    container: "AnyContainer",
     file: Optional[TextIO] = None,
     style: Optional[BaseStyle] = None,
     include_default_pygments_style: bool = True,