code: def __call__(self, obj):
      from theano.gpuarray.type import _name_for_ctx
  
      try:
          import pygpu
      except ImportError:
          pygpu = None
  
      if pygpu and isinstance(obj, pygpu.gpuarray.GpuArray):
          if id(obj) not in self.seen:
  
              def write_array(f):
                  pickle.dump(_name_for_ctx(obj.context), f, 2)
                  np.lib.format.write_array(f, np.asarray(obj))
  
              name = self._resolve_name(obj)
              zipadd(write_array, self.zip_file, name)
              self.seen[id(obj)] = "gpuarray.{0}".format(name)
          return self.seen[id(obj)]
      return super(PersistentGpuArrayID, self).__call__(obj)
  
imports: from __future__ import absolute_import, print_function, division
  import numpy
  import os
  import pickle
  import sys
  import tempfile
  import zipfile
  import warnings
  from collections import defaultdict
  from contextlib import closing
  from pickle import HIGHEST_PROTOCOL
  from six import BytesIO
  import theano
  from theano import config
  from theano.compat import PY3
  from six import string_types
  from theano.compile.sharedvalue import SharedVariable
label_desc: Use image node_id 1 for calling the PersistentGpuArrayID obj's underlying member method code with example usage: obj.__call__(obj) and returns: super, self