[Pharo-project] Loading packages with Gofer and Flair

Hi, How can i specify post install actions when using Gofer and Flair protocol. If i implement SomePackageLoader>>#load, i can send the message #postInstall. SomePackageLoader >>load | config | self ensureFlairAndGofer. config := (Smalltalk at: #FLConfiguration) new. self allFor: config. config load. self postInstall. But i've also seen the FLoadable>>postLoadAction: method, but when i used i've get an erro with a description that it shouldnt be used. Thanks, Fernando