Redmine

      end

      def deliver_twofa_paired

          @user,

          User.current,

          {

            field: "twofa__#{scheme_name}__name",

            url: {controller: 'my', action: 'account'}

          }

      end

      def destroy_pairing!(code)

      end

      def deliver_twofa_unpaired

          @user,

          User.current,

          {

            message: 'twofa_mail_body_security_notification_unpaired',

            url: {controller: 'my', action: 'account'}

          }

      end

      def send_code(controller: nil, action: nil)

        # make sure the user using the backup code is the same it's been issued to

        return false unless @user.present? && @user == user_from_code

          @user,

          User.current,

          {

            message: 'twofa_mail_body_backup_code_used',

            url: {controller: 'my', action: 'account'}

          }

        return true

      end

          token.update_columns value: Redmine::Utils.random_hex(6)

          tokens << token

        end

          @user,

          User.current,

          {

            message: 'twofa_mail_body_backup_codes_generated',

            url: {controller: 'my', action: 'account'}

          }

        tokens

      end