How to pull haml on vue in rails?

Question

Ruby on Rails

rails 5.2.1
installed webpacker, vue
created some.vue file
works
Enabled for styles lang="sass" - works out of the box
wanted to add coffee
called rails webpacker:install:coffee
...
Webpacker now supports Coffeescript renders
everything is fine
now trying to include template lang="haml"
I get a compilation error: Cannot find module 'hamljs'
How is haml support enabled?

Answer 1

npm install hamljs