code: def transformed(self, transformers):
      graph = self
      for transformer in transformers:
          graph = transformer(graph)
          if graph is None:
              raise ConversionError(
                  "Transformer failed: {}".format(transformer)
              )
          assert isinstance(graph, CaffeGraph)
      return graph
  
imports: from collections import namedtuple
  from functools import reduce
  from google.protobuf import text_format
  from copy import deepcopy
  import numbers
  import os
  import tempfile
  from mmdnn.conversion.caffe.mapper import get_handler_name
  from mmdnn.conversion.caffe.resolver import get_caffe_resolver, has_pycaffe
  from mmdnn.conversion.caffe.shape import *
  from mmdnn.conversion.caffe.errors import print_stderr, ConversionError
label_desc: Use image node_id 9 for calling the CaffeGraph obj's underlying member method code with example usage: obj.transformed(transformers) and returns: graph