code: def test_variable_forwarding():
      op = C.constant(value=2, shape=(3, 4)) + 1
      assert op.shape == (3, 4)
  
imports: import numpy
  import os
  import pytest
  import cntk
  from .ops_test_utils import compare_lists_of_np_arrays, AA, cntk_device
  from cntk.io import MinibatchSource, CTFDeserializer, StreamDefs, StreamDef
label_desc: Use image node_id 1 for calling a global function with example usage: test_variable_forwarding() without return types