    # File lib/fog/aws/requests/rds/create_db_security_group.rb, line 29
            def create_db_security_group(name, description = name)
              response = Excon::Response.new
              if self.data[:security_groups] and self.data[:security_groups][name]
                raise Fog::AWS::RDS::IdentifierTaken.new("DBInstanceAlreadyExists => The security group '#{name}' already exists")
              end

              data = {
                'DBSecurityGroupName' => name,
                'DBSecurityGroupDescription' => description,
                'EC2SecurityGroups' => [],
                'IPRanges' => [],
                'OwnerId' => '0123456789'
              }
              self.data[:security_groups][name] = data
              response.body = {
                "ResponseMetadata"=>{ "RequestId"=> Fog::AWS::Mock.request_id },
                'CreateDBSecurityGroupResult' => { 'DBSecurityGroup' => data }
              }
              response

            end