diff --git a/nemo_aligner/data/nlp/builders.py b/nemo_aligner/data/nlp/builders.py
index a61fb46f9..a93099119 100644
--- a/nemo_aligner/data/nlp/builders.py
+++ b/nemo_aligner/data/nlp/builders.py
@@ -372,3 +372,7 @@ def build_dataloader(
         pin_memory=True,
         collate_fn=collate_fn,
     )
+
+class HelloWorld:
+    def __init__(self):
+        print("hello, world!")