using System;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public class Invoker

    {

        private readonly Client _client = new Client();

        public async Task Invoke()

        {

            byte[] bytes = new byte[1024];

            bytes = await _client.ReadBytesAsync();

        }

        public async Task InvokeAgain()

        {

            byte[] bytes = new byte[1024];

            await bytes = _client.ReadBytesAsync(); // This is incorrectly attempting to reassign the "bytes" variable.

        }

    }

    public class Client

    {

        public Task<byte[]> ReadBytesAsync()

        {

            return Task.FromResult(new byte[1024]);

        }

    }

}