# File lib/fog/aws/models/rds/instance_options.rb, line 17
        def all(filters_arg = filters)
          filters.merge!(filters_arg)

          result = service.describe_orderable_db_instance_options(engine, filters).body['DescribeOrderableDBInstanceOptionsResult']
          filters[:marker] = result['Marker']
          load(result['OrderableDBInstanceOptions'])
        end