move chat to demo chat

scripts/demo_chat.py

@@ -0,0 +1,23 @@
+import tyro
+import asyncio
+
+from lang_agent.pipeline import Pipeline, PipelineConfig
+from lang_agent.config import load_tyro_conf
+
+def main(conf:PipelineConfig):
+    if conf.config_f is not None:
+        conf = load_tyro_conf(conf.config_f)
+    
+    pipeline:Pipeline = conf.setup()
+    
+    while True:
+        
+        user_input = input("请讲：")
+        if user_input.lower() == "exit":
+            break
+        response = pipeline.chat(user_input, as_stream=True)
+        print(f"回答: {response}")
+
+
+if __name__ == "__main__":
+    main(tyro.cli(PipelineConfig))