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: bottles.rb
    path of file: ./repos/brew/Library/Homebrew/extend/os/mac/utils
    
    the code of the file until where you have to start completion: module Utils
 
    
      def tag
        if MacOS.version >= :lion
          MacOS.cat
        elsif MacOS.version == :snow_leopard
          Hardware::CPU.is_64_bit? ? :snow_leopard : :snow_leopard_32
        else
          "#{MacOS.cat}_64".to_sym
        end