Apollo router rust plugins yaml configuration

Question

Hi I am trying to include multiple rust plugins in the router.yaml file but can't seemed to find any information online, also try different things on the yaml file but always got error about unexpected property name "group1.plugin_2".

plugins:
  group1.plugin_1:
     var1: 1
  group2.plugin_2:
     var2: 2

Also tried to created a different plugin section

 plugins:
  group1.plugin_1:
     var1: 1

 plugins:
  group2.plugin_2:
     var2: 2

also doesn't work.

Appreciate any help!