Tian Xie

https://github.com/helloShen/leetcode-helper/blob/56bc2efee89405e1270bce8174e127fa2eef040a/src/main/java/com/ciaoshen/leetcode/util/TreeNode.java#L84-L85 For cases like: ``` 1 / \ null 2 ``` I think the above two lines should be: ```java if (n != null) { res.add(line); break; } ```

**Describe the bug** I didn't see a `asyncComplete` field defined in `com.netflix.conductor.sdk.workflow.def.tasks.Http` class, so I cannot create an asyncComplete enabled HTTP task. I think `com.netflix.conductor.sdk.workflow.def.tasks.Event` may have the same issue....

Support UTF-8 characters

3

**What is the suggestion?** I have UTF-8 characters in path. I cannot get node by path. It would be great if jhdf can support UTF-8 characters. 

Support more output format

2

Right now tetos only supports mp3 format. Is there any plan to support more output format?