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: podiff.rb
    path of file: ./repos/homebrew-core/Formula/p
    
    the code of the file until where you have to start completion: class Podiff < Formula
  desc "Compare textual information in two PO files"
  homepage "https://puszcza.
    
  def caveats
    <<~EOS
      To use with git, add this to your .git/config or global git config file:

        [diff "podiff"]
        command = #{HOMEBREW_PREFIX}/bin/podiff -D-u

      Then add the following line to the .gitattributes file in
      the directory with your PO files:

        *.po diff=podiff

      See `man podiff` for more information.
    EOS
  end