# File lib/AWS/RDS/rds.rb, line 387
387:       def modify_db_parameter_group( options = {} )
388:         raise ArgumentError, "No :db_parameter_group_name provided" if options.does_not_have?(:db_parameter_group_name)
389:         raise ArgumentError, "No :parameters provided" if options.does_not_have?(:parameters)
390: 
391:         params = {}
392:         params['DBParameterGroupName'] = options[:db_parameter_group_name]
393:         params.merge!(pathhashlist('Parameters.member', [options[:parameters]].flatten, {
394:           :name => 'ParameterName',
395:           :value => 'ParameterValue',
396:           :apply_method => "ApplyMethod"
397:         }))
398: 
399:         return response_generator(:action => "ModifyDBParameterGroup", :params => params)
400:       end