in Elastic.SemanticKernel.Connectors.Elasticsearch/Internal/Linq/AsyncEnumerable.cs [88:99]
public static async ValueTask<bool> ContainsAsync<T>(this IAsyncEnumerable<T> source, T value)
{
await foreach (var item in source.ConfigureAwait(false))
{
if (EqualityComparer<T>.Default.Equals(item, value))
{
return true;
}
}
return false;
}