    # File lib/fog/aws/requests/rds/describe_db_security_groups.rb, line 18
            def describe_db_security_groups(opts={})
              opts = {'DBSecurityGroupName' => opts} if opts.is_a?(String)

              request({
                'Action'  => 'DescribeDBSecurityGroups',
                :parser   => Fog::Parsers::AWS::RDS::DescribeDBSecurityGroups.new
              }.merge(opts))
            end