c# IAsyncEnumerable

In newer C# versions, you can use `await foreach` with `IAsyncEnumerable<T>` to yield results asynchronously instead of using `IEnumerable<T>`. This is particularly useful when dealing with large data sets, streaming data, or async operations like database queries or API calls. 

Sample code :-

using System;

using System.Collections.Generic;

using System.Threading.Tasks;

class Program

{

    static async Task Main()

    {

        await foreach (var item in GetNumbersAsync())

        {

            Console.WriteLine(item);

        }

    }

    static async IAsyncEnumerable<int> GetNumbersAsync()

    {

        for (int i = 1; i <= 5; i++)

        {

            await Task.Delay(1000); // Simulating an async operation

            yield return i;

        }

    }

}