class Lato::User

def authenticator_qr_code_base64(size = 200)
  "data:image/png;base64,#{Base64.strict_encode64(RQRCode::QRCode.new(ROTP::TOTP.new(authenticator_secret, :issuer => Lato.config.application_title).provisioning_uri(email).to_s).as_png(size: size, border_modules: 0).to_s)}"
end