def dispatch(message, channel)
      if channel =~ /\Aslanger:/
        # Messages received from the Redis channel slanger:*  carry info on
        # subscriptions. Update our subscribers accordingly.
        update_subscribers message
      else
        push Oj.dump(message, mode: :compat)
      end
    end
def dispatch(message, channel)
      if channel =~ /\Aslanger:/
        # Messages received from the Redis channel slanger:*  carry info on
        # subscriptions. Update our subscribers accordingly.
        update_subscribers message
      else
        push Oj.dump(message, mode: :compat)
      end
    end
Send an event received from Redis to the EventMachine channel