Add custom html attributes to webix tree item

Hi there!

I need every .webix_tree_item element to have a custom html attribute containing parent id, like this:

Is there any way to do that?
Thank you!

Hello @vitaliy_kretsul ,
As a solution, you can use type property to redefine templateStart for the tree control and add custom HTML-attribute.
Please take a look at the next snippet:

Thank you @annazankevich
That is exactly what I need