Enable dataclasses_transform (PEP 681) on pg.ObjectMeta for better static typing support.

PiperOrigin-RevId: 791418828

Author: daiyip

pyglove/core/symbolic/object.py

@@ -28,6 +28,13 @@
 from pyglove.core.symbolic import flags
 
 
+if sys.version_info >= (3, 11):
+  _dataclass_transform = typing.dataclass_transform
+else:
+  _dataclass_transform = lambda x: x
+
+
+@_dataclass_transform()
 class ObjectMeta(abc.ABCMeta):
   """Meta class for pg.Object."""