# Pastebin aT82QkxL
+   6     method COMPOSE {                                                                                                                                                                                                                    
+   7         for ::?CLASS!attr-columns -> $attr {                                                                                                                                                                                            
+   8             my $attr-name = $attr.name.substr(2);                                                                                                                                                                                       
+   9             with ::?CLASS.^find_method($attr-name) {                                                                                                                                                                                    
+  10                 .wrap: method () is rw {                                                                                                                                                                                                
+  11                     Proxy.new:                                                                                                                                                                                                          
+  12                         FETCH => method (|) {say "FETCH" ; nextsame},                                                                                                                                                                   
+  13                         STORE => method (|) {say "STORE" ; $attr.is-dirty = True; nextsame}                                                                                                                                             
+  14                 }                                                                                                                                                                                                                       
+  15             }                                                                                                                                                                                                                           
+  16         }                                                                                                                                                                                                                               
+  17     }