Rails: how to create translation files like django

I am trying to use internationalization on the rails. Here I found that for the team

<%= t :hello_world %>

I know that Ineed defines : hello_world in the config / locales / en.yml file , like this

# config/locales/en.yml
en:
  hello_world: Hello world!

I want to know how in django it creates translation files using makemessages , is there any way to do this on rails ? It becomes a tedious task to find and write whole translations.

thank