''' @Override public int sendChannelMsg(String channelId, String msgContent) { try {

        MessagePayload payload = new MessagePayload();
        payload.setType(1);
        payload.setSearchableContent("hello world");
        ChannelServiceApi channelServiceApi = new ChannelServiceApi(ImHelper.channelIMUrl, channelId, admin_secret);
        IMResult<SendMessageResult> resultSendMessage = channelServiceApi.sendMessage(0, (List) null, payload);
        if (resultSendMessage != null && resultSendMessage.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
            System.out.println("send message to all the subscriber success");
            return 1;
        } else {
            System.out.println("send message to all the subscriber  failure");
            return 0;
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

'''