public static async Task<bool> Any<T>(this ChannelReader<T> reader,
                                           Func<T, bool> condition,
                                           ChannelParallelOptions options)

using Amphisbaena;
using Amphisbaena.Linq;

...

int[] data = new int[] {1, 2, 3};

bool hasEvenNumber = await data
  .ToChannelReader()
  .Any(item => item % 2 == 0);