/// "some.translation.key" = "Welcome, %{username}! The date is %{shortdate}!"
<Translation
  @scope="some.translation.key"
  @placeholders={{array "username"}}
  @options={{hash shortdate=shortDate}}
>
  <:placeholders as |Placeholder|>
    <Placeholder @name="username">
      <UserLink @user={{user}}>{{user.username}}</UserLink>
    </Placeholder>
  </:placeholders>
</Translation>