Extending the raku languiage -- Breaking bad. Say my name

.tours---a-tour.tour

{
  "$schema": "https://aka.ms/codetour-schema",
  "title": "A tour",
  "steps": [
    {
      "title": "Introduction",
      "description": "Test.\nPrevious attempt lost"
    }
  ]
}

.tours---raku--extending-the-language.tour

{
  "$schema": "https://aka.ms/codetour-schema",
  "title": "Raku : extending the language",
  "steps": [
    {
      "title": "Say my name",
      "description": "## This code is a reference \n...to an iconic scene of the Breaking bad serie. The dialog goes as:\n* Say my name\n* You are Heisenberg\n\nIt is a pretext to demonstate the extensibility of the raku language\n\nhttps://www.youtube.com/watch?v=5eZOOEkrf6Q"
    }
  ]
}

breaking-bad.raku

#! /usr/bin/env raku
BEGIN $*LANG.refine_slang: 'MAIN', role {
   rule routine_declarator:sym<meth> { 
      <sym> <method_def('method')> };
 };
class Heisenberg { meth say-my-name { say "you are $?CLASS.^name()"  }})
Heisenberg.say-my-name