code: def with_lookahead():
      x = placeholder()
      future_x = sequence.future_value(x)
      apply_x = splice(x, future_x)
      return apply_x
  
file_path: CNTK/Tests/EndToEndTests/CNTKv2Python/Examples/language_understanding_test.py
imports: from __future__ import print_function
  import os, sys
  import numpy
  import shutil
  from cntk import DeviceDescriptor
  from cntk import placeholder
  from cntk.layers import *
  from cntk.internal.utils import *
  from cntk.logging import *
  from cntk.ops import splice
  from LanguageUnderstanding import data_dir, create_reader, create_model_function, train, evaluate, emb_dim, hidden_dim, num_labels
label_desc: Use image node_id 3 for calling a global function with example usage: with_lookahead() and returns: apply_x