Esteban wrote:

senders of what? I can use senders.

Sometimes. Looking for senders of ifTrue: in a Moose 5.0 pops up a debugger. https://code.google.com/p/moose-technology/issues/detail?id=1018 Add a class-side packages method. Then you can no longer add an instance side method without getting a debugger, and the method cannot be searched for. Stephan