# Pastebin hD7a36wO
❯ raku -Ilib polymorphic.raku
Comment.new(id => 1, body => "blabla", commentable-id => 1, commentable-type => "post")
Comment.new(id => 2, body => "bleble", commentable-id => 1, commentable-type => "photo")
comment: 1; post: Post.new(id => 1, title => "bla")
comment: 2; post: Nil
comment: 1; photo: Nil
comment: 2; photo: Photo.new(id => 1, path => "ble")