    # File lib/fog/aws/models/rds/parameters.rb, line 21
            def all(filters = filters)
              self.filters = filters
              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