# File lib/rds/right_rds_interface.rb, line 578
    def describe_engine_default_parameters(*engine, &block)
      engine = ['MySQL5.1'] if engine.blank?
      item, params = AwsUtils::split_items_and_params(engine)
      params['Engine'] = item if item
      result = []
      incrementally_list_items('DescribeEngineDefaultParameters', DescribeDbParametersParser, params) do |response|
        result += response[:parameters]
        block ? block.call(response) : true
      end
      result
    end