Add pg.enable_opaque_pickle to enable/disable unsafe Pickle during to_json().

PiperOrigin-RevId: 923500250

Author: daiyip

pyglove/core/__init__.py

@@ -299,6 +299,7 @@
 DocStr = utils.DocStr
 
 registered_types = utils.registered_types
+enable_opaque_pickle = utils.enable_opaque_pickle
 explicit_method_override = utils.explicit_method_override
 
 is_partial = utils.is_partial

pyglove/core/utils/__init__.py

@@ -79,6 +79,7 @@
 from pyglove.core.utils.json_conversion import from_json
 from pyglove.core.utils.json_conversion import to_json
 from pyglove.core.utils.json_conversion import registered_types
+from pyglove.core.utils.json_conversion import enable_opaque_pickle
 
 # Handling formatting.
 from pyglove.core.utils.formatting import Formattable