Gem::Security.alt_name_or_x509_entry

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/security.rb, line 414
def self.alt_name_or_x509_entry(certificate, x509_entry)
  alt_name = certificate.extensions.find do |extension|
    extension.oid == "#{x509_entry}AltName"
  end

  return alt_name.value if alt_name

  certificate.send x509_entry
end