internal interface IEventDispatchData<TSender, out TArgs>
    where TArgs : AsyncEventArgs
{
    Task InvokeAsync();
}

internal sealed class EventDispatchData<TSender, TArgs> : IEventDispatchData<TSender, TArgs>
    where TArgs : AsyncEventArgs
{
    public AsyncEvent<TSender, TArgs> Event { get; }
    public TSender Sender { get; }
    public TArgs EventArgs { get; }

    internal EventDispatchData(AsyncEvent<TSender, TArgs> asyncEvent, TSender sender, TArgs e)
    {
        this.Event = asyncEvent;
        this.Sender = sender;
        this.EventArgs = e;
    }

    public async Task InvokeAsync()
        => await this.Event.InvokeAsync(this.Sender, this.EventArgs).ConfigureAwait(false);
}

internal static class EventDispatchData
{
    public static IEventDispatchData<TSender, TArgs> Create<TSender, TArgs>(AsyncEvent<TSender, TArgs> asyncEvent, TSender sender, TArgs e)
        where TArgs : AsyncEventArgs
        => new EventDispatchData<TSender, TArgs>(asyncEvent, sender, e);

    public static IEventDispatchData<TSender, TArgs> CreateDispatch<TSender, TArgs>(this AsyncEvent<TSender, TArgs> asyncEvent, TSender sender, TArgs e)
        where TArgs : AsyncEventArgs
        => Create(asyncEvent, sender, e);
}