isExpand or isCollapse flag missing in treechart

[AashishChakravarty]

Version

4.8.2

Link to Minimal Reproduction

No response

Steps to Reproduce

Chart Type: Tree

Check params of onclick mathod on node click.

There is no any flag for tree expand or collapse

Current Behavior

No flag available for Collapse or expand

Expected Behavior

Flag required for collapse or expand

Environment

- OS:
- Browser:
- Framework:

Any additional comments?

No response