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: list.rb
    path of file: ./repos/brew/Library/Homebrew/cmd
    
    the code of the file until where you have to start completion: #:  * `list`, `ls` [`--full-name`] [`-1`] [`-l`] [`-t`] [`-r`]:
#:    List all installed formulae. If `--full-name` is passed, p
    
  def initialize(path)
    Pathname.new(path).children.sort_by { |p| p.to_s.downcase }.each do |pn|
      case pn.basename.to_s
      when "bin", "sbin"
        pn.find { |pnn| puts pnn unless pnn.directory? }
      when "lib"
        print_dir pn do |pnn|
          # dylibs have multiple symlinks and we don't care about them
          (pnn.extname == ".dylib" || pnn.extname == ".pc") && !pnn.symlink?
        end
      when ".brew"
        next # Ignore .brew
      else
        if pn.directory?
          if pn.symlink?
            puts "#{pn} -> #{pn.readlink}"
          else
            print_dir pn
          end
        elsif Metafiles.list?(pn.basename.to_s)
          puts pn
        end
      end