Changed code to support older Python versions

venv/lib/python3.11/site-packages/rich_toolkit/button.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any, Callable, Optional
+
+from .element import Element
+
+if TYPE_CHECKING:
+    from .styles.base import BaseStyle
+
+
+class Button(Element):
+    def __init__(
+        self,
+        name: str,
+        label: str,
+        callback: Optional[Callable] = None,
+        style: Optional[BaseStyle] = None,
+        **metadata: Any,
+    ):
+        self.name = name
+        self.label = label
+        self.callback = callback
+
+        super().__init__(style=style, metadata=metadata)
+
+    def activate(self) -> Any:
+        if self.callback:
+            return self.callback()
+        return True