# File lib/rds/right_rds_interface.rb, line 435 def describe_db_parameter_groups(*db_parameter_group_name, &block) items, params = AwsUtils::split_items_and_params(db_parameter_group_name) params['DBParameterGroupName'] = items.first unless items.blank? result = [] incrementally_list_items('DescribeDBParameterGroups', DescribeDbParameterGroupsParser, params) do |response| result += response[:db_parameter_groups] block ? block.call(response) : true end result end