code: function post(logStore, topic, source, keyContents) {
    return AliyunLog && AliyunLog.postAliyunLog && AliyunLog.postAliyunLog(logStore, topic, source, keyContents);
  }
docs: 发送日志
  
  @param logStore
  @param topic
  @param source
  @param keyContents eg: [{ key: 'key1', content: 'content1' }, { key: 'key2', content: 'content2' }]
  @returns {*}