Cleaner fix for #6

examples/input_example.py

@@ -25,4 +25,4 @@ async def main():
 
 
 if __name__ == "__main__":
-    asyncio.run(main())
+    asyncio.get_event_loop().run_until_complete(main())

src/edge_tts/util.py

@@ -153,7 +153,7 @@ def main():
     """
     Main function.
     """
-    asyncio.run(_main())
+    asyncio.get_event_loop().run_until_complete(_main())
 
 
 if __name__ == "__main__":