namespace System.Threading.Tasks.Dataflow
{
    public sealed class BatchedJoinBlock<T1, T2, T3> : IDataflowBlock, IReceivableSourceBlock<Tuple<IList<T1>!, IList<T2>!, IList<T3>!>!>, ISourceBlock<Tuple<IList<T1>!, IList<T2>!, IList<T3>!>!>
    {
        public bool TryReceive(Predicate<Tuple<IList<T1>!, IList<T2>!, IList<T3>!>!>? filter, [NotNullWhen(true)] out Tuple<IList<T1>!, IList<T2>!, IList<T3>!>? item);
    }
}