/// <summary>
/// Catches exceptions of type <typeparamref name="TException"/>.
/// </summary>
/// <example>
/// <code>
/// IAsyncEnumerable<int> source = ...;
/// var catched = source
/// .Select(i => new { X = i, Y = 2 * i }) // anonymous type
/// .Timeout(TimeSpan.FromSeconds(5))
/// .Catch(default(TimeoutException)); // Catch<anonymous, TimeoutException>(...)
/// </code>
/// </example>
public static IAsyncEnumerable <TSource> Catch <TSource, TException>(this IAsyncEnumerable <TSource> source, TException _) where TException : Exception
=> source.Catch <TSource, TException>();