# File lib/rds/right_rds_interface.rb, line 318
    def describe_db_security_groups(*db_security_group_name, &block)
      items, params = AwsUtils::split_items_and_params(db_security_group_name)
      params['DBSecurityGroupName'] = items.first unless items.blank?
      result = []
      incrementally_list_items('DescribeDBSecurityGroups', DescribeDbSecurityGroupsParser, params) do |response|
        result += response[:db_security_groups]
        block ? block.call(response) : true
      end
      result
    end