code: def _get_attribute(source_node, attribute_name):
      if attribute_name in source_node.attributes:
          return source_node.attributes
  
      node = source_node.block_root
      while not attribute_name in node.attributes:
          node = node.inputs[0].owner
  
      return node.attributes
  
imports: import os
  import numpy
  from six.moves import xrange
  import cntk
  from mmdnn.conversion.cntk.cntk_graph import CntkGraph
  import mmdnn.conversion.common.IR.graph_pb2
  from mmdnn.conversion.common.IR.graph_pb2 import NodeDef, GraphDef, DataType
  from mmdnn.conversion.common.utils import *
  from mmdnn.conversion.common.DataStructure.parser import Parser
label_desc: Use image node_id 11 for calling the CntkParser obj's underlying member method code with example usage: obj._get_attribute(source_node, attribute_name) and returns: node, source_node