def set_client_cert_file(cert_file, key_file)
    @client_cert = OpenSSL::X509::Certificate.new(File.open(cert_file).read)
    @client_key = OpenSSL::PKey::RSA.new(File.open(key_file).read)
    change_notify
  end
def set_client_cert_file(cert_file, key_file)
    @client_cert = OpenSSL::X509::Certificate.new(File.open(cert_file).read)
    @client_key = OpenSSL::PKey::RSA.new(File.open(key_file).read)
    change_notify
  end
don't use if you don't know what it is.