code: def layer_scope(self):
      return self._op.variable_scope
  
imports: from __future__ import absolute_import, print_function
  from abc import ABCMeta, abstractmethod
  import numpy
  import tensorflow
  from six import with_metaclass
  from niftynet.engine.application_variables import RESTORABLE
label_desc: Use image node_id 5 for calling the Layer obj's underlying member method code with example usage: obj.layer_scope() and returns: self