Way to reparent policy traffic classes (non leaf)

[praffulla]

Hi Team,
I have a TC hierarchy something like this:

<worker 0>
+-- !default_rr_0 round_robin
<><> +-- fast rate_limit 9.000 Mpps
<><><><> +-- !leaf_src:0 leaf
<><>+-- weighted_fair_widX 1024 weighted_fair
<><><><><> +-- !leaf_task1

I wanted to reparent fast (with rate_limit policy) under weighted_fair_widX TC. I see that UpdateTcParent only non-leaf orphan
nodes can be moved. Is there any way I can make fast task orphan and then move under weighted_fair_widX. Or if there is any better way ?