Add __expressions_builtin__ attribute to bound object

Author: jaepil

monic/expressions/registry.py

@@ -22,6 +22,7 @@ def __getattr__(self, name: str) -> t.Any:
         value = self._namespace[name]
         if isinstance(value, dict):
             return NamespaceProxy(value)
+
         return value
 
 
@@ -201,6 +202,7 @@ def _bind_object(self, name: str, obj: _F) -> _F:
 
         # Add metadata to the object
         setattr(obj, "__expressions_type__", True)
+        setattr(obj, "__expressions_builtin__", False)
         setattr(obj, "__expressions_name__", name)
 
         return obj
@@ -329,6 +331,7 @@ def _bind_default_object(self, name: str, obj: _F) -> _F:
 
         # Add metadata to the object
         setattr(obj, "__expressions_type__", True)
+        setattr(obj, "__expressions_builtin__", True)
         setattr(obj, "__expressions_name__", name)
 
         return obj