diff --git a/langfuse/api/resources/annotation_queues/types/annotation_queue_object_type.py b/langfuse/api/resources/annotation_queues/types/annotation_queue_object_type.py
index 1bef33b55..6e63a7015 100644
--- a/langfuse/api/resources/annotation_queues/types/annotation_queue_object_type.py
+++ b/langfuse/api/resources/annotation_queues/types/annotation_queue_object_type.py
@@ -9,13 +9,17 @@
 class AnnotationQueueObjectType(str, enum.Enum):
     TRACE = "TRACE"
     OBSERVATION = "OBSERVATION"
+    SESSION = "SESSION"
 
     def visit(
         self,
         trace: typing.Callable[[], T_Result],
         observation: typing.Callable[[], T_Result],
+        session: typing.Callable[[], T_Result],
     ) -> T_Result:
         if self is AnnotationQueueObjectType.TRACE:
             return trace()
         if self is AnnotationQueueObjectType.OBSERVATION:
             return observation()
+        if self is AnnotationQueueObjectType.SESSION:
+            return session()