*/
public PrivateChannel subscribePrivate(String channelName, PrivateChannelEventListener listener, String... eventNames) {
throwExceptionIfNoAuthorizerHasBeenSet();
PrivateChannelImpl channel = factory.newPrivateChannel(connection, channelName, pusherOptions.getAuthorizer());
channelManager.subscribeTo(channel, listener, eventNames);
return channel;
}