def reply_transfer_customer_service_message(from=nil, to=nil, kf_account=nil)
      if kf_account.blank?
        message = TransferCustomerServiceReplyMessage.new
      else
        message = TransferCustomerServiceWithTransInfoReplyMessage.new
        message.TransInfo = generate_kf_trans_info(kf_account)
      end
      message.FromUserName = from || @weixin_message.ToUserName
      message.ToUserName   = to   || @weixin_message.FromUserName
      encrypt_message message.to_xml
    end
def reply_transfer_customer_service_message(from=nil, to=nil, kf_account=nil)
      if kf_account.blank?
        message = TransferCustomerServiceReplyMessage.new
      else
        message = TransferCustomerServiceWithTransInfoReplyMessage.new
        message.TransInfo = generate_kf_trans_info(kf_account)
      end
      message.FromUserName = from || @weixin_message.ToUserName
      message.ToUserName   = to   || @weixin_message.FromUserName
      encrypt_message message.to_xml
    end
消息转发到多客服
 消息转发到指定客服