You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: version_decorator.rb
    path of file: ./repos/hitobito/app/decorators/paper_trail
    
    the code of the file until where you have to start completion: # encoding: utf-8

#  Copyright (c) 2012-2024, Pfadibewegung Schweiz. This file is part of
#  hitobito and licensed und
    
    def association_change
      changeset = model.event == 'update' ? changeset_list : nil
      item = reifyed_item

      text = association_change_text(changeset, item)

      h.sanitize(text, tags: %w(i))
    end