feat: immutable decorator

dzgui/util/immutable.py

@@ -0,0 +1,9 @@
+from dataclasses import dataclass
+from typing import Callable
+
+def immutable_dataclass(cls: type | None = None, **kwargs: bool) -> type | Callable[[type], type]:
+    kwargs["slots"] = True
+    kwargs["frozen"] = True
+    if cls is None:
+        return lambda c: dataclass(c, **kwargs)
+    return dataclass(cls, **kwargs)