# File lib/fog/aws/models/rds/parameters.rb, line 19
        def all(filters_arg = filters)
          filters = filters_arg
          result = []
          marker = nil
          finished = false
          while !finished
            data = service.describe_db_parameters(group.id, filters.merge(:marker => marker)).body
            result.concat(data['DescribeDBParametersResult']['Parameters'])
            marker = data['DescribeDBParametersResult']['Marker']
            finished = marker.nil?
          end
          load(result) # data is an array of attribute hashes
        end