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: model.rb
    path of file: ./repos/brakeman/lib/brakeman/tracker
    
    the code of the file until where you have to start completion: require 'brakeman/tracker/collection'

module Brakeman
  module ModelMe
    
    def parent_classes_protected? seen={}
      seen[self.name] = true

      if @attr_accessible or self.includes.include? :"ActiveModel::ForbiddenAttributesProtection"
        true
      elsif parent = tracker.models[self.parent] and !seen[self.parent]
        parent.parent_classes_protected? seen
      else
        false
      end