public Guid CreateConversationWithUserSet(Guid user, List <Guid> userSet)
{
IChannel newUnamedChannel = ChannelFactory.CreateChannel(user);
if (newUnamedChannel != null)
{
newUnamedChannel.AddMemberSet(userSet);
return(CreateConversationForChannel(user, newUnamedChannel));
}
return(Guid.Empty);
}