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: clean.rb
    path of file: ./repos/ruby-packer/ruby/gems/rake-13.0.1/lib/rake
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
# The 'rake/clean' file defines two file lists (CLEAN and CLOBBER) and
# two 
    
    def file_already_gone?(file_name)
      return false if File.exist?(file_name)

      path = file_name
      prev = nil

      while path = File.dirname(path)
        return false if cant_be_deleted?(path)
        break if [prev, "."].include?(path)
        prev = path
      end