/// <summary>
/// Append a range of messages for each message passed through
/// </summary>
/// <typeparam name="TMessageType">The chain message type</typeparam>
/// <param name="chainBuilder">The mch builder</param>
/// <param name="messageSelector">The function used to create the new message</param>
/// <returns>The same mch builder</returns>
public static IChainBuilder <TMessageType> AppendMany <TMessageType>(
this IChainBuilder <TMessageType> chainBuilder,
Func <TMessageType, CancellationToken, Task <IEnumerable <TMessageType> > > messageSelector)
{
if (messageSelector == null)
{
return(chainBuilder);
}
return(chainBuilder.AppendMany(c => c.Select(messageSelector)));
}