How to make react-lite Observer forward props it received to children?

[pke]

I have the following pattern for may layouts:

<Stack.M>
  <Observer>
    <Item />
  </Observer>
</Stack.M>

My Stack component annotates any style the child might have set to add bottom/top margins.
This works just fine when not wrapping the Item inside Observer

Is there a way to make Observer forward props it received to children?