Add support for legacy operations access

schemas/__private/preconfigured_base_model.py

@@ -62,6 +62,17 @@ class Operation(PreconfiguredBaseModel):
         """conversion name of operation from CamelCase to snake_case"""
         return re.sub(r"(?<!^)(?=[A-Z])", "_", cls.get_class_name()).lower()
 
+    def __getitem__(self, key: str | int) -> Any:
+        if isinstance(key, int):
+            match (key):
+                case 0:
+                    return self.get_name()
+                case 1:
+                    return self
+                case _:
+                    raise ValueError("out of bound")
+        return super().__getitem__(key)
+
 
 class VirtualOperation(Operation):
     """Base class for all virtual operations"""