diff --git a/cf_internal b/cf_internal
index 8e4099c..83f0c85 160000
--- a/cf_internal
+++ b/cf_internal
@@ -1 +1 @@
-Subproject commit 8e4099cd4aac5fd85200633767bae2f0fe8c73c1
+Subproject commit 83f0c853d52aaf0f34d4a8fbddc3e8abc6e0fcae
diff --git a/chainfury/base.py b/chainfury/base.py
index 54166f9..f485222 100644
--- a/chainfury/base.py
+++ b/chainfury/base.py
@@ -948,6 +948,8 @@ def __init__(
             self.topo_order = topological_sort(self.edges)
         self.sample = sample
         self.main_in = main_in
+
+        op_key = main_out.split("/")[-1]  # TODO: @yashbonde - make this useful
         self.main_out = main_out
 
         for node_id in self.topo_order: