README: Reduced asynchronous client example

README.md

@@ -148,22 +148,6 @@ if __name__ == "__main__":
 <summary>Asynchronous version ( with <code>async def</code> )</summary>
 
 ```py
-import asyncio
-from typing import Any, TypeAlias
-
-from easynetwork.clients import AsyncTCPNetworkClient
-from easynetwork.protocol import StreamProtocol
-from easynetwork.serializers import JSONSerializer
-
-RequestType: TypeAlias = Any
-ResponseType: TypeAlias = Any
-
-
-class JSONProtocol(StreamProtocol[RequestType, ResponseType]):
-    def __init__(self) -> None:
-        super().__init__(JSONSerializer())
-
-
 async def main() -> None:
     async with AsyncTCPNetworkClient(("localhost", 9000), JSONProtocol()) as client:
         await client.send_packet({"data": {"my_body": ["as json"]}})
@@ -172,6 +156,8 @@ async def main() -> None:
 
 
 if __name__ == "__main__":
+    import asyncio
+
     asyncio.run(main())
 ```