def delete_unknown_user(_debug)
      @current_users.each do |cu|
        cu.drop unless @managed_users.any? do |mu|
          cu.user == mu.user && cu.host == mu.host
        end
      end
    end
def delete_unknown_user(_debug)
      @current_users.each do |cu|
        cu.drop unless @managed_users.any? do |mu|
          cu.user == mu.user && cu.host == mu.host
        end
      end
    end
rubocop:enable Metrics/MethodLength