diff --git a/runtime_example.py b/runtime_example.py
index b12a6f5..87de98b 100644
--- a/runtime_example.py
+++ b/runtime_example.py
@@ -4,16 +4,15 @@ from runtime.ast.parser import Parser
 from runtime.ast.runtime import Runtime
 
 script = """
-let hello = add(div(1,2),2)
-
-return hello
+let text = audio_to_text(audio)
+return tts(text)
 """
 
 def version():
     return "0.0.1"
 
-def add(a,b):
-    return a+b
+def add(*args):
+    return sum(args)
 
 def div(a,b):
     return a/b
@@ -43,5 +42,11 @@ if __name__ == "__main__":
     })
     ast = Parser().parse(script)
     # 注入數據
-    script_output = runtime.run(ast, {})
-    print("script:",script_output)
\ No newline at end of file
+    script_output = runtime.run(ast, {
+        "audio": audio_data,
+    })
+    f = open("./test_data/tmp.wav", "wb")
+    print("script:", type(script_output))
+    f.write(script_output.read())
+    f.close()
+    
\ No newline at end of file
diff --git a/test_data/tmp.wav b/test_data/tmp.wav
new file mode 100644
index 0000000..9675ea4
Binary files /dev/null and b/test_data/tmp.wav differ