    # File lib/fog/aws/requests/rds/modify_db_parameter_group.rb, line 20
            def modify_db_parameter_group(group_name, parameters)

              parameter_names = []
              parameter_values = []
              parameter_apply_methods = []

              parameters.each do |parameter|
                parameter_names.push(parameter['ParameterName'])
                parameter_values.push(parameter['ParameterValue'])
                parameter_apply_methods.push(parameter['ApplyMethod'])
              end
              params = {}
              params.merge!(Fog::AWS.indexed_param('Parameters.member.%d.ParameterName', parameter_names))
              params.merge!(Fog::AWS.indexed_param('Parameters.member.%d.ParameterValue', parameter_values))
              params.merge!(Fog::AWS.indexed_param('Parameters.member.%d.ApplyMethod', parameter_apply_methods))

              request({
                'Action'  => 'ModifyDBParameterGroup',
                'DBParameterGroupName' => group_name,

                :parser   => Fog::Parsers::AWS::RDS::ModifyDbParameterGroup.new
              }.merge(params))
            end