diff --git a/lang_agent/pipeline.py b/lang_agent/pipeline.py
index 9c62035..ca96d4a 100644
--- a/lang_agent/pipeline.py
+++ b/lang_agent/pipeline.py
@@ -225,4 +225,16 @@ class Pipeline:
     async def aclear_memory(self):
         """Async version: Clear all memory from the graph."""
         if hasattr(self.graph, "aclear_memory"):
-            await self.graph.aclear_memory()
\ No newline at end of file
+            await self.graph.aclear_memory()
+
+
+if __name__ == "__main__":
+    from lang_agent.graphs import ReactGraphConfig
+    from dotenv import load_dotenv
+    load_dotenv()
+    # config = PipelineConfig(graph_config=ReactGraphConfig())
+    config = PipelineConfig()
+    pipeline: Pipeline = config.setup()
+    for out in pipeline.chat("use the calculator tool to calculate 92*55 and say the answer", as_stream=True):
+        # print(out)
+        continue
\ No newline at end of file