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: openssl@3.rb
    path of file: ./repos/homebrew-core/Formula/o
    
    the code of the file until where you have to start completion: class OpensslAT3 < Formula
  desc "Cryptography and SSL/TLS Toolkit"
  homepage "https://openssl.org/"
  url "https://www.openssl.org/source/openssl-3.2.1.tar.gz"
  mirror "https://www.mirrorser
    
  def caveats
    <<~EOS
      A CA file has been bootstrapped using certificates from the system
      keychain. To add additional certificates, place .pem files in
        #{openssldir}/certs

      and run
        #{opt_bin}/c_rehash
    EOS
  end