test.raku

#!/usr/bin/env raku

class Bar {
   has $.l = "left value";
   has $.r = "right value";

   multi method get(:$lhs) { $.l }
   multi method get(:$rhs) { $.r }

   method something(Int $depth = 0, |p) {
      "this is a Bar of " ~ self.get(|p);
   }
}

multi get(:$lhs) { "left" }
multi get(:$rhs) { "right" }

sub whatever(Int $depth = 0, |p) {
   "whatever = " ~ get(|p);
}

say Bar.new.something(:lhs);
say Bar.new.something(:rhs);
say whatever(:lhs);
say whatever(:rhs);