Best Practices for Instantiating Objects in C# Source Generators

[CreateConfigurableTask]
public class SomeArgs
{
    public string SomeStuff { get; set; }
    public string SomeStuff1 { get; set; }

    public SomeArgs WithSomeStuff(string someStuff)
    {
        SomeStuff = someStuff;
        return this;
    }

    public async Task<SomeArgs> SomeAsyncOperation(string myParam)
    {
        await Task.Delay(10);
        return this;
    }
}

public partial class SomeService
{
    private Task<string> DoSomething(SomeArgs data)
    {
        return Task.FromResult($"Doing something with {data.SomeStuff} and {data.SomeStuff1}");
    }
}

[ConfigurableTaskArgsFactory]
public SomeArgs CreateSomeArgs()
{
    return new SomeArgs();
}

public partial class SomeService
{
    private Func<SomeArgs> _createSomeArgs = () => new SomeArgs();
}